Complete your lifted vehicle with Rough Country's Speedometer Calibration Device!
This Speedometer Calibrator allows you to quickly and easily reprogram your vehicle's speedometer to match the output of larger tires.
Your vehicle's computer tracks speed based on stock tire height.
Upgrading to larger tires creates a discrepancy between actual speed and speedometer readout.
This plug and play device connects directly to your vehicle's Diagnostic Link Connector Port, and in just a few minutes, your speedometer reads accurately again!
Rough Country's Speedometer Calibration Devices not only change your in-dash readout but also update your vehicle's ECM, ensuring accurate shift points and proper electronic stability control.
You can achieve an affordable and accurate speedometer calibration with an intuitive setup process!
This device can also read and check all diagnostic codes to help manage check engine light and service needed messages, and includes a function to reset the speedometer back to stock before servicing the vehicle.
Includes a 1-Year warranty.
NOTE: (fits) 2019-2020 Chevy Silverado GMC Sierra 1500 2020 2500HD.
