Speedometer Calibrator | Chevy/GMC 1500/2500HD/3500HD/Tahoe/Yukon (07-18 & Classic)

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.<br><br>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.<br><br>This plug and play device connects directly to your vehicle’s Diagnostic Link Connector Port and in just a few short minutes yo

Resets your speedometer to accurate readings for larger tires. Fits gas & diesel models. 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.