OVERVIEW
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 can also easily read and check all diagnostic codes to help you manage GÇ£check engine lightGÇ¥ and GÇ£service neededGÇ¥ messages, and also includes a function to reset the speedometer back to stock prior to servicing the vehicle. Includes a 1-Year Warranty.
Features
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
Reads diagnostic codes like ''check engine light''
Option to return to stock settings
1-year warranty.
Notes
Download the latest software update here
Emissions Certifications: Not for sale or use in California
Does NOT work on models with Adaptive Cruise Control
Does NOT work on 2.0/3.6L Hybrid models
Does NOT work on 392 models
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.Install Time
5-10 minutesInstruction:
View Instruction Sheet
Fitment:
2018-2018 2WD Ram 1500
2018-2018 4WD Ram 1500
2020-2023 4WD Jeep Gladiator
2018-2023 4WD Jeep Wrangler
Tire Fitment: