Introducing the GMC Sierra 2500 HD Speedometer Calibrator by Rough Country, designed specifically for '20-'23 models. This intuitive device ensures that your vehicle's speedometer displays accurate readings when equipped with larger tires.

Upgrading to larger tires can result in discrepancies between the actual speed of your vehicle and the speed displayed on your dashboard. The Rough Country Speedometer Calibrator addresses this issue seamlessly by reprogramming your vehicle's ECM (Engine Control Module) to match the output of the larger tires. It also updates shift points and recalibrates electronic stability control, providing you with a comprehensive and precise solution. Installation is straightforward with its plug-and-play design that connects directly to your vehicle's Diagnostic Link Connector Port.

Features

• Resets your speedometer to accurate readings for larger tires.
• Easy plug-and-play connection.
• Updates OEM ECM shift points for larger tires.
• Recalibrates electronic stability control for new tire sizes.
• Option to revert to original factory settings.
• 1-year warranty for peace of mind.
• Compatible with gas and diesel 1500 models and gas and diesel 2500/3500 models.

We are committed to providing our customers with the very best products and services. For any questions or additional assistance, feel free to contact us. Our dedicated team is available at 512-982-9393 for our Austin, Texas location and 562-981-6800 for our Los Angeles, California area location. Don't forget, we also offer installation and customization services at both locations. We look forward to assisting you with your speedometer calibrator needs!

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov