Put downtime out of work.
Save up to $100 on OTR Diagnostics. Free OTR Link 2 adapter with every plan, through September 9.
OTR Assist AI: Industry 1st AI Diagnostics
Dealer-level diagnostics. In your hands.
Read fault codes, reset derates, force DPF regens, and monitor live engine data, on one truck or your whole fleet.
- Save money. No tows, no diagnostic fees
- Save time. Help fix issues from where you stand
- Stay in control. Dealer-level commands
Everything you need
- Read & reset fault codes
- Reset derates
- Forced DPF regen
- Live engine data
- Fleet dashboard
- GPS tracking
- Derate alerts
Take the 60-second quiz. It matches you to the right setup.
The old way is broken
Stop reacting. Start controlling.
For years, truck owners and fleet managers have been stuck in the same reactive cycle. A warning light comes on, the truck derates, and suddenly you're losing time, money, and control.
01. The warning light
A fault code appears. The truck loses power. Your driver is stranded on the side of the road trying to figure out what happens next.
02. The scramble
Now you're calling shops, checking tow options, and guessing whether the truck can safely keep moving or needs immediate attention.
03. The downtime
Every hour the truck sits still costs money. Missed loads, delayed deliveries, and expensive diagnostics start piling up fast.
With OTR, you take control
Dealer-level diagnostics, live fault data, remote commands, and real-time visibility, so small problems never become major downtime.
OTR Remote Diagnostics / Fleet owners
Keep every truck earning, from one screen
Cellular hardware installed in every truck. 24/7 monitoring, remote commands, and a fleet dashboard that shows you problems before your drivers call.
Owner-operators
OTR Diagnostics for every engine
Pick your engine. See exactly which dealer-level commands OTR Diagnostics unlocks on it.
- X15
- X12
- ISX
- ISC 8.3
- ISL 9
- ISB 6.7
Turn a derate day into a 20-minute fix.
Read the fault, run the fix and clear the derate yourself, from the cab, on your phone, with Cummins dealer-level commands.
- Read active & inactive fault codes
- SPN/FMI and OEM-specific code details
- Live engine data while connected
- Freeze frame and regen history
Dealer-level commands
- DD13
- DD15
- DD16
Dealer-level Detroit Diesel commands, no dealer visit.
Read the fault, reset the aftertreatment and force the regen yourself on every Detroit in your operation.
- Read active & inactive fault codes
- SPN/FMI and OEM-specific code details
- Live engine data while connected
- Freeze frame and regen history
Dealer-level commands
- MX-11
- MX-13
The deepest PACCAR command set outside a dealership.
From EGR derates to DPF installs, handle the PACCAR aftertreatment work that usually means a dealer appointment.
- Read active & inactive fault codes
- SPN/FMI and OEM-specific code details
- Live engine data while connected
- Freeze frame and regen history
Dealer-level commands
- D11
- D13
- D16
Catch Volvo derates before they strand your drivers.
Reset soot levels, clear 5 mph derate timers and force regens on Volvo power, without the truck leaving the lot.
- Read active & inactive fault codes
- SPN/FMI and OEM-specific code details
- Live engine data while connected
- Freeze frame and regen history
Dealer-level commands
- MP7
- MP8
Keep every Mack pulling, on your schedule.
The same dealer-level aftertreatment commands as Volvo power, for the MP-series engines in your fleet.
- Read active & inactive fault codes
- SPN/FMI and OEM-specific code details
- Live engine data while connected
- Freeze frame and regen history
Dealer-level commands
Two products.
One mission.
Both give you dealer-level power. The right one depends on how you operate.
| Feature | OTR Remote | OTR Diagnostics |
|---|---|---|
| Best For | Fleet managers (2+ trucks) |
Owner-operators (1 truck) |
| Connection | Cellular always on |
Bluetooth on demand |
| Read Fault Codes | ||
| Reset Fault Codes | Remote | In-cab |
| Force DPF Regen | Remote | In-cab |
| Reset Derates | Remote | In-cab |
| Live Engine Data | 24/7 | Connected |
| Fleet Dashboard | ||
| GPS Tracking | ||
| Derate Alerts | Proactive | |
| Remote Access | Anywhere | In cab |
Why OTR
Why 10,500+ pros trust OTR
Dealer-level power
Same codes, commands, and data the dealership sees.
- Full OEM fault code library with SPN/FMI descriptions
- Reset codes, force regens, and reset derates
- Freeze frame data, live parameters, and regen history
Bi-directional commands
Don't just read. Take action on the spot.
- Send commands directly to your truck
- Force DPF regens and reset derates
- Confirm command results inside the platform
Built for heavy-duty
Class 8 specialist, not a consumer OBD tool.
- Cummins ISX, ISB, X15 and X12
- Detroit DD13, DD15 and DD16
- PACCAR MX, Volvo D-series, Mack MP-series
Real results
Real customers. Real trucks.
Saved me from a $1,200 shop visit. Forced a regen from my phone in 20 minutes and got back on the road. Pays for itself in one use.
Mike R.
Owner-operator · Cummins ISX
We run 23 trucks. Before OTR Remote, a derate meant pulling the truck. Now I reset it from my desk and keep the load moving.
James T.
Fleet manager · Midwest Freight
I knew about a DPF issue on truck 14 before my driver even noticed. That's the difference. You're ahead of the problem instead of behind it.
Sandra L.
Operations director · 48-truck fleet
Ready to take control?
Dealer-level power, whichever way you run.
Owner-operator with one truck or a fleet of two hundred. The 60-second quiz points you at the right setup.
60-day money-back guarantee · OTR Link 2 adapter included with Diagnostics