ECRI Calibration
Product details
Model year 2025.5 and 2026 Jeeps equipped with adaptive cruise control may require TSB 08-331-25 to be installed by the dealer.
ECRI Allows you to calibrate 2007-2026 Jeep Wrangler and Gladiator and 2009-12 Dodge Ram Trucks. Just plug the ECRI device in your OBD port (2018 and newer Jeeps also require plugging in the Freedom Module behind your glovebox) and open the ECRI app to get started. ECRI allows you to view and update calibrations like tire size, TPMS threshold, TPMS disable, axle gear ratio, transfer case gear ratio and more!
ECRI does not change any physical aspect of your vehicle, it only allows you to adjust the calibration to match the installed components.
Setup in under 5 minutes
Plug in, connect, unlock, and calibrate — all from your phone in minutes.
Connect the ECRI device to your OBD2 port — no tools required. Works with any compatible Jeep or Ram.
Launch the free ECRI app on your iPhone or Android. It connects wirelessly via Bluetooth.
Purchase a one-time vehicle unlock now and it will automatically be applied to your vehicle.
Select your calibrations — tire size, TPMS, gear ratio — and ECRI does the rest. Done in minutes.
Why ECRI
One device. Lifetime calibration access. No expensive dealer dependency.
Dial in your exact tire diameter via GPS auto-measure or manual input. Fix your speedometer, odometer, shift points, and ABS instantly. Get accurate shifting and fuel economy.
GPS Auto ModeEnable, disable, or adjust TPMS thresholds for oversized off-road tires. Eliminate false warnings for good.
Off-Road EssentialUpdate front and rear axle gear ratios and transfer case settings after a regear. Ensure all modules perform optimally after modifications.
Regear ReadySwap between LED and halogen profiles, enable fogs with high beams, and configure daytime running lights.
JL / JTDisable the factory auto stop/start feature to reduce battery strain and mechanical wear. No more sweating at stoplights.
Freedom ModuleOne ECRI device works across all compatible vehicles. Have multiple vehicles? Use it on all of them.
Multi-VehicleVehicle Compatibility
Full feature matrix across supported Jeep and Ram platforms.
| Feature | 2007–18 Wrangler JK | 2018+ Wrangler JL / Gladiator | 2009–12 Ram Truck |
|---|---|---|---|
| Tire Size — Manual | ✓ | ✓ | ✓ |
| Tire Size — GPS / Auto | ✓ | ✓ | ✓ |
| TPMS Enable / Disable | ✓ | ✓ | ✓ |
| TPMS Threshold Change | ✓ | ✓ | ✓ |
| Axle Gear Ratio | ✓ | ✓ | – |
| Transfer Case Gear Ratio | ✓ | ✓ | – |
| Front / Rear Camera Enable | Rear only | ✓ | – |
| Auto Start/Stop Disable | – | ✓ | – |
| Rubicon Sway Bar Enable/Disable | – | ✓ | – |
| Rubicon Lockers Enable/Disable | – | ✓ | – |
| LED ↔ Halogen Lighting | – | ✓ | – |
| Fogs On With High Beams | – | ✓ | – |
| Daytime Running Light Mode | – | ✓ | – |
| Aux Switch Panel | – | ✓ | – |
| Steering Pump Disable | – | ✓ | – |
| Axle Disconnect Disable | – | ✓ | – |
| OE Halo Headlight Enable/Disable | – | ✓ | – |
| Hood Alarm Sensor Enable/Disable | – | ✓ | – |
| Proximity Door Handles | – | ✓ | – |
| Trailer Brake Controller | – | ✓ | – |
| HVAC Auto Sync | – | ✓ | – |
What customers say
Common Questions
Stop Driving with a Wrong Speedometer
Join 215+ Jeep and Ram owners who recalibrated their builds in under 5 minutes.
Get ECRI — $109.99 →