Hypertech Inline Speedometer Calibrator for 2017-2018 GMC Sierra 2500/3500 HD 6.6L Duramax LML. Hypertech Speedometer Calibrator is used to correct speedometer & odometer readings to the correct custom tire size. This feature is essential for all vehicles that are equipped with non-factory tire sizes, such as off-road tires & larger or smaller wheels/tires. Additionally, for select applications, Hypertech Speedometer Calibrator can also be used to correct speedometer & odometer reading for customized rear gear ratios. See details for your application below under specifications.
- Correct speedometer & odometer readings for large or off-road tires.
- Correct speedometer & odometer readings for customized rear gear ratios.
- Return to stock settings at your convenience.
All cables, installation instructions & warranty is included. Using the USB cable connect, the In-line Speedometer Calibrator Module to your PC and enter the new tire height and/or rear gear ratio. There are no limitations for increasing tire height or rear gear ratios. Next, disconnect the factory connector to the instrument cluster (behind the dash), snap in the Speedometer Calibrator Module, reconnect the cluster, and you?re done! In a matter of minutes, you can accurately correct your speedometer and odometer readings (as required by law).
Tire Size Adjustment: Yes - All Sizes
Rear Gear: Yes
|Shipping Method||UPS/FedEx/USPS Ground|
|Availability||Normally ships within 1-2 business days.|
|California Prop 65 Warning|
This product can expose you to chemicals which are known to the State of California to cause cancer and cause birth defects or other reproductive harm. For more information, visit https://www.p65warnings.ca.gov/