GMC Sierra 3500 HD Speedometer Calibrator - Rough Country - Inline, Diesel - '17-'19

The GMC Sierra 3500 HD Speedometer Calibrator by Rough Country is a must-have tool for owners of 2017-2019 diesel models who have upgraded their vehicle with larger tires. This intuitive and efficient device allows you to recalibrate your speedometer, ensuring that you receive the most accurate speed readings possible.

This Speedometer Calibration Device from Rough Country is designed with simplicity and effectiveness in mind. It plugs directly into your vehicle's Diagnostic Link Connector Port, effortlessly reprogramming your speedometer in just a few minutes. By aligning your vehicle's speedometer with the actual speed output of your larger tires, you gain precise speed readings. More importantly, this device updates your vehicle's Engine Control Module (ECM) to maintain accurate shift points and optimal electronic stability control functions. Prior to any servicing, the included reset function allows you to revert the speedometer back to stock settings with ease, making it a versatile addition to any GMC Sierra 3500 HD Diesel truck.

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 for seamless integration with larger tires
• Option to return to stock settings
• 1-year warranty

Rough Country's Speedometer Calibrator is designed with user-friendliness and affordability in mind, providing an accurate solution for speedometer discrepancies without any of the hassle. Whether tuning for larger tires or reverting to stock settings before service, this tool is an invaluable resource for your vehicle's optimal performance.

If you have any questions about the GMC Sierra 3500 HD Speedometer Calibrator or need assistance, please feel free to contact us at 512-982-9393 for our Austin, Texas location or 562-981-6800 for our Los Angeles, California location. We offer installation and customization services at both of our locations.

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