Speedometer Calibrator Chevy/GMC 1500/2500HD (19-21)

Rough Country
Free Shipping (details)
This item ships free to the continental US
In stock
Order now and this part ships in


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.


  • 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

Notes - Important

  • Download the latest software update here.
  • Emissions Certifications: Not for sale or use in California.
  • Does NOT fit 2022 refresh models.

    This kit does NOT fit 2022 Chevy/GMC refresh models with the below frontend styles.

    2022 GM Refresh Frontend


More Information
Rear GearNo
Est. Install Time5-10 minutes

In the Box

  • (1) Speedometer Recalibrator
  • (1) USB Update Cable


Vehicle Fitment

2019-2021 2WD Chevy Colorado
2019-2021 4WD Chevy Colorado
2019-2021 2WD Chevy Silverado 1500
2019-2021 4WD Chevy Silverado 1500
2020-2023 2WD Chevy Silverado 2500 HD
2020-2023 4WD Chevy Silverado 2500 HD
2019-2021 2WD GMC Canyon
2019-2021 4WD GMC Canyon
2019-2021 2WD GMC Sierra 1500
2019-2021 4WD GMC Sierra 1500
2020-2023 2WD GMC Sierra 2500 HD
2020-2023 4WD GMC Sierra 2500 HD
ALWAYS read all product page details for more important fitment information



has been added to your cart.