Rough Country Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD
Rough Country Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD
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Put the finishing touch on your lifted vehicle with Rough Country’s Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicle’s speedometer to match the output of your larger tires. Your vehicle's computer is designed to track the speed based on your stock tire height. When upgrading to larger tires, there will be a discrepancy between your actual speed and the readout on your speedometer. This plug and play device connects directly to your vehicle’s Diagnostic Link Connector Port and in just a few short minutes your speedometer reads true again! Rough Country’s Speedometer Calibration Devices don’t just simply change your in-dash readout, they update your vehicle’s ECM, ensuring accurate shift points and proper electronic stability control. Finally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process! This device also includes a function to reset the speedometer back to stock prior to servicing the vehicle. Includes a 1-Year Warranty.
Features
- Fits gas & diesel 1500 models / gas & diesel 2500/3500 models. Resets your speedometer to accurate readings for larger tires. Easy Plug and Play connection. Updates OE ECM Shift Points to accommodate larger tires. Recalibrates Electronic Stability Control to work with larger tires. Option to return to stock settings. 1-year warranty.
Specifications
- Install time: 5-10 minutes
- Manufacturer part number: 90045
Installation instructions (PDF)
Notes: Download the latest software update here . Emissions Certifications: Not for sale or use in California. This programmer is designed to function as a standalone unit and is NOT compatible with any type of performance programmer. Rough Country's Speedometer Calibrator can only be used with one vehicle at a time. As with all other programmers, once programmed, the programmer is locked to that vehicle and cannot be used with any other vehicles until the programmed vehicle is returned to stock settings. Does NOT fit 2022 refresh models. This kit does NOT fit 2022 Chevy/GMC refresh models with the below frontend styles.
Please confirm your exact vehicle, year and trim before ordering.
| Years | Make | Models |
|---|---|---|
| 2022-2023 | GMC | Sierra 2500 HD (Pro 4WD, Pro RWD) |
| 2020-2023 | Chevrolet | Silverado 2500 HD (Custom 4WD, Custom RWD, High Country 4WD, LT 4WD, LT RWD, LTZ 4WD, LTZ RWD, WT 4WD, WT RWD) |
| 2020-2023 | GMC | Sierra 2500 HD (AT4 4WD, Denali 4WD, SLE 4WD, SLE RWD, SLT 4WD, SLT RWD) |
| 2022 | GMC | Sierra 1500 (AT4X 4WD, Denali Ultimate 4WD, Pro 4WD, Pro RWD) |
| 2019-2022 | GMC | Sierra 1500 (AT4 4WD, Denali 4WD, Denali RWD, Elevation 4WD, Elevation RWD, SLE 4WD, SLE RWD, SLT 4WD, SLT RWD) |
| 2021 | GMC | Canyon (AT4 4WD, Elevation 4WD, Elevation RWD, Elevation Standard 4WD, Elevation Standard RWD) |
| 2020-2021 | GMC | Sierra 2500 HD (Base 4WD, Base RWD) |
| 2019-2021 | Chevrolet | Colorado (LT 4WD, LT RWD, WT 4WD, WT RWD, Z71 4WD, Z71 RWD, ZR2 4WD) |
| 2019-2021 | Chevrolet | Silverado 1500 (Custom 4WD, Custom RWD, Custom Trail Boss 4WD, High Country 4WD, High Country RWD, LT 4WD, LT RWD, LT Trail Boss 4WD, LTZ 4WD, LTZ RWD, RST 4WD, RST RWD, SSV 4WD, SSV RWD, WT 4WD, WT RWD) |
| 2019-2021 | GMC | Canyon (Denali 4WD, Denali RWD) |
| 2019-2021 | GMC | Sierra 1500 (Base 4WD, Base RWD) |
| 2019-2020 | Chevrolet | Colorado (Base RWD) |
| 2019-2020 | GMC | Canyon (All Terrain 4WD, Base 4WD, Base RWD, SL RWD, SLE 4WD, SLE RWD, SLT 4WD, SLT RWD) |
| Product Title | Store SKU | MFR Part # |
|---|---|---|
| Rough Country Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD | RC-90045 | 90045 |