About OTR Diagnostics
OTR Diagnostics - Trusted by 10,000+ Truck Owners Dealing with regen problems, nonstop alerts, fault codes, and unexpected derates on your heavy duty truck? You are not alone. More than 10,000 truck owners and fleets...
OTR Diagnostics - Trusted by 10,000+ Truck Owners Dealing with regen problems, nonstop alerts, fault codes, and unexpected derates on your heavy duty truck? You are not alone. More than 10,000 truck owners and fleets trust OTR Diagnostics to take control, cut downtime, and avoid expensive dealer visits. Powered by OTR Assist + OTR LINK 2 This is more than a scan tool. OTR Assist is your AI partner, breaking down fault codes in plain language and helping you troubleshoot and decide if you can keep driving or need service now. Paired with OTR LINK 2, our proprietary Bluetooth adapter, you get faster connection speeds, more accurate fault code data, and more live data parameters than ever before. It is 5X better than previous hardware. Ask us how to get a FREE upgrade today. Commands That Keep You Moving With bi-directional commands built right into OTR Diagnostics, you are no longer stuck waiting on a shop to do what you can handle yourself. Reset active and inactive fault codes Reset the entire aftertreatment system Reset derates that slow you down Reset soot levels after a DPF service Run forced DPF or SCR regens right from the cab These commands put you back in control, saving you time, money, and downtime. Fault Code Insights Go beyond a flashing dash light. OTR Diagnostics helps you understand fault codes with the same level of detail as dealer software, but in plain language you can actually use. Decode your dash lights Uncover the root causes of issues Track how often a problem occurs Know which repairs or parts are needed Live Data Monitoring Want to know if your regen is working? Want to monitor exhaust temps, soot levels, or DEF? OTR Diagnostics lets you see your truck’s vitals in real time so you can spot issues before they stop you. Common live data parameters include: DPF fluid level DPF soot level EGR valve position Aftertreatment exhaust temps Boost pressure Accelerator pedal position Engine fuel delivery pressure Available live data may vary depending on the engine model your device is connected to. Explore Your History Recurring problems? OTR Diagnostics logs every fault code and command so you can see when issues happened, when they were cleared, and how long regens lasted. Proven. Tested. Backed by Support We run OTR Diagnostics, OTR Assist, and OTR LINK 2 on our own fleet of test trucks including late model Paccar MX engines to make sure everything works before it reaches you. That is why more than 10,000 drivers already trust OTR Diagnostics. Made in Michigan. Built for You We engineer, assemble, and ship right from our shop in Macomb, MI. If you are nearby, stop in and see us. Coverage We support a wide range of heavy duty engines: Cummins: CM871, CM2150, CM2250, CM2350 (2008-2024) Detroit Diesel: DD60, MBE, DD13, DD15, DD16 (2008-2024) Paccar: MX11, MX13 (2011-2024), PX7, PX9 (2008-2024) Volvo: D11, D13, D13TC, D16 (2014-2024) Mack: MP7, MP8, MP8HE, MP10 (2014-2024) For the full list of compatible models, call or text us at 586-799-4375. Need Help or Have Questions? Call or text us anytime at 586-799-4375 or email support@otrperformance.com.
Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.2 Sep 25 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.1 Sep 23 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Added International support for N13 and MaxxForce engines • Expanded Volvo coverage, including 2025 to 2027 trucks and more live data • Access OTR Remote right inside the app • Added a Cummins engine detection update to improve reliability • Faster history parsing and improved reliability • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.0 Sep 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Add additional support for cummins engines We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Improve connectivity We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fault code database enhancement • Improving auto-lock functionality • FAQ Link, Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Volvo and Mack Regen improvements • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet. NEW Volvo & Mack Exit Inducement Support We've added exit inducement functionality for Volvo Trucks and Mack Trucks. This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines. If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs. This update puts more control in your hands and keeps your truck moving when it matters most. We're committed to giving drivers and fleets the tools they need to take ownership of their trucks. Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation. Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fixed a bug with the connection flow waiting for fault codes • Simplified reset fault codes command for cummins • Added full support for 2024-2026 Cummins engines • Improved the auto reconnect flow • Bug fixes and performance improvements We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24 • (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17 • (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+ • (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+ • Enhanced OTR Assist for fault codes • Add OTR Assist to history • Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Add vehicle health report • Improved the "Install a Cleaned DPF" command for Paccar • Improved the "Install a New DPF" command for Paccar • Add a new command "Reset Soot Level" for Paccar • Add a new command "Enable Regen After Repair" for Paccar • Fix a bug where fault codes were not showing up on OTR Cloud • Bug fixes and performance improvements We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Simplify adapter connection with auto connect to last known adapter • Add support for stopping DPF regen on paccar • Fix the dashboard vehicle card to update in real time • Add support for the latest OS UI updates • Bug fixes and performance improvements We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • App rebuilt from the ground up for improved stability and performance • Optimizations and performance improvements for OTR Link 2 Adapter • Redesigned dashboard and live data UI • Live data grouped by categories with faster updates • Improved connection flow and notifications • Improved offline mode • Better Bluetooth connectivity and reconnection • Optimized memory and threading for better battery life • Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support • Bug fixes and performance improvements We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • App rebuilt from the ground up for improved stability and performance • Optimizations and performance improvements for OTR Link 2 Adapter • Redesigned dashboard and live data UI • Live data grouped by categories with faster updates • Improved connection flow and notifications • Improved offline mode • Better Bluetooth connectivity and reconnection • Optimized memory and threading for better battery life • Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support • Bug fixes and performance improvements We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fixed a bug with detroit diesel engine detection • Added support for several new plans • Enhanced the AI Assist chat with additional knowledge We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Added international engine coverage • Added new plan called Single Truck Pro Plan We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road. More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher. Here’s what’s new in this release: OTR Assist is now available directly from the fault code details view Get clear explanations of your fault codes with our proprietary AI model Ask questions about your truck and receive guidance on whether to keep driving or stop for service This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control. For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fixed an issue where the user is presented with a blank screen • Fixed and issue where the users grace period could end early • Fixed a crash We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fixed and issue where unstable connections cause offline mode • Fixed a crash We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Improved Regen for 2021+ Detroit Diesel Engines • Improved OEM for PCodes for Paccar MX Engines We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Update FAQ link • Migrate to new customer support model We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Improved engine detection across all engines • Improved live data parameters for Volvo/Mack engines • Bug fixes related to reported crashes • Bug fixes related to Cummins fault codes • Bug fixes related to reporting VIN We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update. Here’s what’s fresh off the diagnostics table: • Fix for OEM codes on EPA2021 Paccar MX engines We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it! Enjoying OTR Diagnostics? We’d love to hear from you! Leave us a rating and share your experience. Your feedback drives our innovation. For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025
Previous Versions
Here you can find the changelog of OTR Diagnostics since it was posted on our website on 2021-12-15 07:10:59.
The latest version is 4.1.2 and it was updated on 2026-10-07 11:48:01. See below the changes in each version.
OTR Diagnostics version 4.1.2
Updated At: 2026-10-07
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.2 Sep 25 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.1 Sep 23 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added International support for N13 and MaxxForce engines
• Expanded Volvo coverage, including 2025 to 2027 trucks and more live data
• Access OTR Remote right inside the app
• Added a Cummins engine detection update to improve reliability
• Faster history parsing and improved reliability
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.0 Sep 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add additional support for cummins engines
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025
OTR Diagnostics version 4.1.2
Updated At: 2026-09-26
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.2 22h ago Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.1 3d ago Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added International support for N13 and MaxxForce engines
• Expanded Volvo coverage, including 2025 to 2027 trucks and more live data
• Access OTR Remote right inside the app
• Added a Cummins engine detection update to improve reliability
• Faster history parsing and improved reliability
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.0 Sep 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add additional support for cummins engines
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025
OTR Diagnostics version 4.1.0
Updated At: 2026-09-19
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added International support for N13 and MaxxForce engines
• Expanded Volvo coverage, including 2025 to 2027 trucks and more live data
• Access OTR Remote right inside the app
• Added a Cummins engine detection update to improve reliability
• Faster history parsing and improved reliability
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.0 Sep 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add additional support for cummins engines
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025
OTR Diagnostics version 4.1.0
Updated At: 2026-09-12
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added International support for N13 and MaxxForce engines
• Expanded Volvo coverage, including 2025 to 2027 trucks and more live data
• Access OTR Remote right inside the app
• Added a Cummins engine detection update to improve reliability
• Faster history parsing and improved reliability
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.1.0 3d ago Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add additional support for cummins engines
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025
OTR Diagnostics version 4.0.12
Updated At: 2026-09-05
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add additional support for cummins engines
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.12 Aug 22 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved fault code reset across all Volvo / Mack engines from 2014+
• Added SCR Efficiency Regen to 2011-2016 Detroit diesel engines EPA10 / GHG14. (This command now covers all 2011-2024 Detroit diesel engines)
• Update API requests
• Fix crash when downloading history
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.9 06/09/2025
OTR Diagnostics version 4.0.11
Updated At: 2026-08-11
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 Jun 9 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved fault code reset across all Volvo / Mack engines from 2014+
• Added SCR Efficiency Regen to 2011-2016 Detroit diesel engines EPA10 / GHG14. (This command now covers all 2011-2024 Detroit diesel engines)
• Update API requests
• Fix crash when downloading history
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.9 06/09/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for live data requests with some trucks
• Improved Paccar engine detection
• Fix crash that could occur after initial login
• Fix an issue when launching after a reinstallation
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.8 05/26/2025
OTR Diagnostics version 4.0.11
Updated At: 2026-06-15
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improve connectivity
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.11 6d ago Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fault code database enhancement
• Improving auto-lock functionality
• FAQ Link, Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.10 Jun 8 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved fault code reset across all Volvo / Mack engines from 2014+
• Added SCR Efficiency Regen to 2011-2016 Detroit diesel engines EPA10 / GHG14. (This command now covers all 2011-2024 Detroit diesel engines)
• Update API requests
• Fix crash when downloading history
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.9 06/09/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for live data requests with some trucks
• Improved Paccar engine detection
• Fix crash that could occur after initial login
• Fix an issue when launching after a reinstallation
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.8 05/26/2025
OTR Diagnostics version 4.0.9
Updated At: 2026-05-11
Changes: Version History Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.9 Apr 29 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.8 Apr 24 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.7 Mar 6 Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help. 4.0.6 Feb 18 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with the connection flow waiting for fault codes
• Simplified reset fault codes command for cummins
• Added full support for 2024-2026 Cummins engines
• Improved the auto reconnect flow
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.5 Feb 12 Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• (PACCAR MX) Added Reset Soot, EPA10, EPA13, EPA17, EPA21, EPA24
• (PACCAR MX) Added Enable regen after repair on EPA10, EPA13, EPA17
• (PACCAR MX) Added Install a cleaned DPF on Paccar MX EPA21, EPA24+
• (PACCAR MX) Added Install a NEW DPF on Paccar MX EPA21, EPA24+
• Enhanced OTR Assist for fault codes
• Add OTR Assist to history
• Bug fixes and performance improvements from connection flow improvements, to enhancing the engine detection
We're changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.4 Feb 10 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Add vehicle health report
• Improved the "Install a Cleaned DPF" command for Paccar
• Improved the "Install a New DPF" command for Paccar
• Add a new command "Reset Soot Level" for Paccar
• Add a new command "Enable Regen After Repair" for Paccar
• Fix a bug where fault codes were not showing up on OTR Cloud
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.3 Feb 2 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Simplify adapter connection with auto connect to last known adapter
• Add support for stopping DPF regen on paccar
• Fix the dashboard vehicle card to update in real time
• Add support for the latest OS UI updates
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.2 Jan 28 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.1 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• App rebuilt from the ground up for improved stability and performance
• Optimizations and performance improvements for OTR Link 2 Adapter
• Redesigned dashboard and live data UI
• Live data grouped by categories with faster updates
• Improved connection flow and notifications
• Improved offline mode
• Better Bluetooth connectivity and reconnection
• Optimized memory and threading for better battery life
• Enhanced Volvo, Paccar, Detroit Diesel, Cummins and International engine support
• Bug fixes and performance improvements
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 4.0.0 Jan 21 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed a bug with detroit diesel engine detection
• Added support for several new plans
• Enhanced the AI Assist chat with additional knowledge
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.20 11/17/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Added international engine coverage
• Added new plan called Single Truck Pro Plan
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.19 09/22/2025 Meet OTR Assist BETA
It’s like having a mechanic in your pocket. OTR Diagnostics gives you the power to understand your truck on a deeper level and take control of your destiny on the road.
More than 10,000+ PRO members trust OTR Diagnostics to read and clear fault codes, perform advanced commands, and make smarter decisions about their trucks. Now with OTR Assist BETA, we are raising the bar even higher.
Here’s what’s new in this release:
OTR Assist is now available directly from the fault code details view
Get clear explanations of your fault codes with our proprietary AI model
Ask questions about your truck and receive guidance on whether to keep driving or stop for service
This is the first diagnostic tool designed to go beyond the traditional way of doing things. OTR Assist helps you stay informed, stay confident, and stay in control.
For feedback or support, contact us anytime at support@otrperformance.com. 3.0.18 08/25/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed an issue where the user is presented with a blank screen
• Fixed and issue where the users grace period could end early
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.17 08/11/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fixed and issue where unstable connections cause offline mode
• Fixed a crash
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.16 08/04/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for 2021+ Detroit Diesel Engines
• Improved OEM for PCodes for Paccar MX Engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.15 07/14/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Update FAQ link
• Migrate to new customer support model
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.14 07/07/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection across all engines
• Improved live data parameters for Volvo/Mack engines
• Bug fixes related to reported crashes
• Bug fixes related to Cummins fault codes
• Bug fixes related to reporting VIN
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.13 06/27/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for OEM codes on EPA2021 Paccar MX engines
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.12 06/22/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for crash during history import
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.11 06/16/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved engine detection on Paccar MX engines
• Improved regen for all Volvo and Mack engines 2014-2024
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.10 06/10/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved fault code reset across all Volvo / Mack engines from 2014+
• Added SCR Efficiency Regen to 2011-2016 Detroit diesel engines EPA10 / GHG14. (This command now covers all 2011-2024 Detroit diesel engines)
• Update API requests
• Fix crash when downloading history
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.9 06/09/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Fix for live data requests with some trucks
• Improved Paccar engine detection
• Fix crash that could occur after initial login
• Fix an issue when launching after a reinstallation
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.8 05/26/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Improved Regen for Volvo and Mack
• Improved Cummins DPF Regen, added start/stop support.
• Added Cummins SCR Performance Test as a new regen.
• Added Paccar MX (2025/2026) support
• Added Evaluate SCR System command to 2021-2016 Paccar MX11,MX13 engines.
• Enhanced Reset Faults for Detroit Diesel engines
• Improved reading soot/ash data
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.7 05/19/2025 Thank you for your continued support and for being part of the OTR community! We’re committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Login improvements
• Update FAQ link
• Bug fixes
We’re changing the game when it comes to taking ownership of your vehicle — this is a big release, and we hope you enjoy it!
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you! 3.0.6 05/12/2025
OTR Diagnostics version 4.0.7
Updated At: 2026-03-06
Changes: Thank you for your continued support and for being part of the OTR community! We're committed to making your experience even better with each update.
Here’s what’s fresh off the diagnostics table:
• Volvo and Mack Regen improvements
• Bug fixes and performance improvements
We're changing the game when it comes to taking ownership of your vehicle
Enjoying OTR Diagnostics? We’d love to hear from you!
Leave us a rating and share your experience. Your feedback drives our innovation.
For any feedback or suggestions, feel free to drop us a line at support@otrperformance.com. We’re here for you!
OTR Diagnostics version 4.0.6
Updated At: 2026-02-18
Changes: Thank you for being part of the OTR community. This is one of our biggest updates yet.
NEW Volvo & Mack Exit Inducement Support
We've added exit inducement functionality for Volvo Trucks and Mack Trucks.
This feature supports 2014–2024 Volvo and Mack trucks equipped with Volvo or Mack engines.
If your truck is stuck in 5 MPH derate or inducement mode, you now have the opportunity to reduce the derate and get back on the road, potentially saving thousands in downtime, towing, and dealership costs.
This update puts more control in your hands and keeps your truck moving when it matters most.
We're committed to giving drivers and fleets the tools they need to take ownership of their trucks.
Enjoying OTR Diagnostics? We'd truly appreciate a rating and review. Your feedback drives our innovation.
Questions or suggestions? Reach us anytime at support@otrperformance.com. We're here to help.
