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2 of 175 storefronts
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What’s New Version 4.0.11
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!
Description
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.
Accessibility
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Version history 25 versions
Build 886691699v4.0.112026-06-09 05:48:11
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!
Build 886495207v4.0.102026-06-08 11:48:22
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:
• 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!
Build 885045413v4.0.92026-04-29 16:16:56
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!
Build 884901263v4.0.82026-04-24 19:39:19
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!
Build 883075906v4.0.72026-03-06 17:09:47
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!
Build 882554926v4.0.62026-02-18 16:03:04
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.
Build 882417138v4.0.52026-02-12 20:12:32
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!
Build 882306984v4.0.42026-02-10 16:23:07
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!
Build 882090531v4.0.32026-02-02 22:00:40
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!
Build 881862787v4.0.22026-01-28 16:18:04
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!
Build 881652115v4.0.02026-01-21 19:14:16
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!
Build 881721912v4.0.12026-01-21 23:22:34
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!
Build 879847019v3.0.202025-11-17 23:46:16
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!
Build 878237212v3.0.192025-09-22 15:45:27
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!
Build 877491477v3.0.182025-08-25 11:16:47
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.
Build 877072286v3.0.172025-08-11 13:16:11
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!
Build 876880734v3.0.162025-08-04 14:59:26
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!
Build 876333225v3.0.152025-07-14 15:18:52
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!
Build 876203665v3.0.142025-07-07 20:27:40
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!
Build 875925408v3.0.132025-06-27 13:34:33
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!
Build 875763620v3.0.122025-06-22 17:28:17
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!
Build 875577287v3.0.112025-06-16 16:35:21
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:
• 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!
Build 875480047v3.0.102025-06-10 22:03:00
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!
Build 875363957v3.0.92025-06-09 09:54:28
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:
• 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!
Build 875030808v3.0.82025-05-26 10:57:59
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!
No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.
Availability 2 of 175 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
| US | en-US | Free | 96 | 4.0 | 4.0.11 |
| CA | en-CA | Free | 16 | 4.7 | 4.0.11 |
Not available in: AE, AF, AG, AI, AL, AM, AO, AR, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BM, BN, BO, BR, BS, BT, BW, BY, BZ, CD, CG, CH, CI, CL, CM, CN, CO, CR, CV, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FJ, FM, FR, GA, GB, GD, GE, GH, GM, GR, GT, GW, GY, HK, HN, HR, HU, ID, IE, IL, IN, IQ, IS, IT, JM, JO, JP, KE, KG, KH, KN, KR, KW, KY, KZ, LA, LB, LC, LK, LR, LT, LU, LV, LY, MA, MD, ME, MG, MK, ML, MM, MN, MO, MR, MS, MT, MU, MV, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NP, NR, NZ, OM, PA, PE, PG, PH, PK, PL, PT, PW, PY, QA, RO, RS, RU, RW, SA, SB, SC, SE, SG, SI, SK, SL, SN, SR, ST, SV, SZ, TC, TD, TH, TJ, TM, TN, TO, TR, TT, TW, TZ, UA, UG, UY, UZ, VC, VE, VG, VN, VU, XK, YE, ZA, ZM, ZW
Reviews 20 reviews · US
★★★★★
Not reliable
I don’t recommend it to solve problems because you still have to go to see a mechanic and he uses his own tools. But you can delete old codes that doesn’t really help because they are already inactive.
HAIKEL_G2026-05-19
★★★★★
Updates bring too many problems
App constantly disconnects from device, can no longer clear generic codes ( like the whole command option disappeared), and forced regen is no longer consistent. Also when you are trying to find out about the codes you have the AI assistant will not work it’s very inconsistent. When it does work it asks you to do things so it can help further diagnose the issue but the things it asks you to do you don’t even have the option to in the app. 6.7 isb Cummins engine International truck. This app use to work but it seems like the update messed some things up and I don’t know if they are trying to fi
T.O 2122026-03-31
★★★★★
latest update November 18, 2025
The latest update is causing several codes to come up that the app will not clear. These codes were not there until the update this morning.
Kennyrayman2025-11-19
★★★★★ · edited
what’s the update for ???
I don’t Understand what’s the update for to make worse or supposed to fix the problem ?
Update rejects Bluetooth connection completely your connect go back enough doesn’t want to connect you go back to Bluetooth. It’s out again and I gotta do like 10-20 times or what we’re paying for something they’re experimenting learning with our money and paying them for what ? Fix the problem that's a big issues. We can't connect the devices and we're gonna need one year free subscription. Could you start losing money? That's when you're gonna turn your head on and fix the problem because you're screwing
gmp.me2025-08-10
★★★★★
Kind of unstable
I like the concept and while functional the Bluetooth connection always drops and unable to stay connected for the duration of a regen. This is somewhat annoying as it won't be able to capture an accurate history nor allow me to terminate the regen using commands. Articles state that there may be interference but I find that explanation unsatisfactory as all my other Bluetooth devices never experience this problem...ever. So what gives? Is it the hardware or the software?
Robvme2025-06-20
★★★★★
Overpriced
For these product is way too overpriced. It’s just doing the basic stuff reads and clears. the codes, and does force regen, it just basically saves you time to type in Google what those codes mean, that’s all it does. Life data is off. The major problem that the subscription should last for a year but after eight months, I cancel subscription that I won’t be charged for the next year and they just shut me off the app, so I no longer can use it. And it’s still too much to pay yearly subscription.
Dimon86542025-06-16
★★★★★
Ilya G
Highly recommend, this tool is a beast and will always get you home so you could fix problem and save time and money on the road
ilya diesel2025-04-17
★★★★★
Great product
works perfectly , i had dd15 now cummins no issue ,Saved me alot of times , i recommend every owner operator
Ks toor2025-03-22
★★★★★
Works when “works”
I bought this and worked great first two times I did regen. Plug and play. But now I’m having big issues. First of all can’t log into my account. Gives me “authenticate” error. Called customer service and they gave me temporary log in till they fix the issue. Logged in a tried again and now it’s having issues connecting to Bluetooth device. When I finally do get it to connect it won’t do regen. I try clearing all Cummins codes and generic codes and prompts with “failed”. I feel like the app is very buggy and only works half the time in my experience. Customer service is responsive. They even c
Big broody2025-01-14
★★★★★
Regen
I don't recommend this. Used it for 3 years. Today I have given up on this device. Maybe it works well on new trucks, but not on older ones. Diagnostics do not give clear information about what exactly is wrong, only superficially and regeneration is not done completely. The price is very high, and the quality is not worth the price. Today, there are devices without permanent subscriptions and 2-3 times cheaper, but they perform the same functions: erasing codes, checking errors, regeneration...
JanioA2024-12-21
★★★★★
Works great for me
This has saved me thousands on tows and shop repairs it lets me know where to look for problems and I have been able to get the truck home and been able ti work on it myself instead of paying outrageous prices on the road for repairs.
Crazy Bull 012024-09-16
★★★★★
Love it!
Bought this tool about 4 months ago because I kept getting “phantom” check engine lights…would pay a shop to clear and I would be good to go for another couple of months…well I have had 2 such lights since my purchase and the OTR tool cleared w no issue…money well spent
Roy Hathaway2024-06-08
★★★★★
Too buggy
The OTR Performance app is too buggy right now and needs to be fixed.
First off, I have to turn off and on the Bluetooth on my iPad which I use the app with for the communication to update in real time instead of having a serious lag
Second, in the Live Data when I was reading specific gauges like Fuel Economy if it goes to 0mpg when accelerator was let off going down hill, the gauge would close out and back to the main Live Data page
Third, I used the Forced DPF Regen last night and after two minutes I started the regen, the app claimed it was finished while the actual regen continued fo
N.Philip2024-04-05
★★★★★
Lebec road service
We love this tool . Have been a fan otc helps a lot. !!! This new tool is the cats pajamas. Very dependable easey to log in excellent all the way around . Support also awesome. Can’t say enough.
Lebecroadservice2024-04-02
★★★★★
Attention Required
Great tool. Application DOES NOT FUNCTION without data connection. Sometimes I need this tool where I have no cellular service. Airplane mode doesn’t fix the problem. I will edit this review when this issue is addressed.
Jacob Cross2022-10-29
★★★★★
Best tool - did exactly as was expected
Had some issues with clearing faults codes and not being able to do a regen. Once I got the tool all my frustrations went away the tool worked flawlessly to clear my codes, do a forced regen and get me back on the road.
This is a great tool and every owner operator should have one!!!
Dirtbike142022-01-20
★★★★★
$600 just to Sub
I was disappointed when I add the app to my phone, I will explain. So when someone spend $887 for something like this they should at least give u a free 7days trail but they wanna you to spend more money $600 or $1600…Yea its a option but if u cant really see whats up with your truck then its pointless smfh….They should have gave driver a chance to see if they wanna to subscribe or not!!!! I understand its Business but what happen to Make American Great Again smfh.
757_ Va2022-01-12
★★★★★
Awesomeness!!
This is one tool that works just like they said it would!!!! It’s saved me a lot of money paying to get ghost codes removed. BUY it save your money! No more throwing your money away on overpriced dealerships or towing co !
99 .2021-04-25
★★★★★
Loren weaver o/o
Wow worked in auto industry for 12 years, and this tool does what it says. Easy to use and works. Paid for it self in a month!! Cleared ghost codes. Also saved in repairs I did my self. Thank you OTR keep bringing out new and more features on this app!! Right to repair.!!
ex mechanic2020-10-05
★★★★★
Awesome Tool
I have used this tool to fix all my problems on my trucks. Bought it. Soon as I got it hooked it up to my Volvo and Cummins motor. The codes was easy to read and understand. Replaced parts and no more codes.
Trucking Inside2020-08-19
Change log 29 changes · US
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releaseNotes updated
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 wh
✎
description updated
OTR Diagnostics — Trusted by 10,000+ Truck Owners
Dealing with regen problems, nonstop alerts, fault codes, and unexpected derates on your heavy duty truck? Yo
✎
subtitle updated
Heavy-duty scan tool made easy
✎
name updated
OTR Diagnostics
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Version 4.0.11 released
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 t
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Version 4.0.10 released
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
• Im
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Version 4.0.9 released
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
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Version 4.0.8 released
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
◆
Version 4.0.7 released
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
•
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Version 4.0.6 released
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 Vol
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Version 4.0.5 released
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 w
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Version 4.0.4 released
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, E
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Version 4.0.3 released
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
◆
Version 4.0.2 released
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
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Version 4.0.1 released
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 imp
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Version 4.0.0 released
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 imp
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Version 3.0.20 released
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
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Version 3.0.19 released
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
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Version 3.0.18 released
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 Diagnost
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Version 3.0.17 released
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 presen
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Version 3.0.16 released
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 connecti
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Version 3.0.15 released
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 Diese
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Version 3.0.14 released
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 cus
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Version 3.0.13 released
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 e
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Version 3.0.12 released
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
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Version 3.0.11 released
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
W
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Version 3.0.10 released
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
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Version 3.0.9 released
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 V
◆
Version 3.0.8 released
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 t