The Chevrolet Silverado 3500 HD Speedometer Calibrator by Rough Country is an essential tool for drivers upgrading to larger tires. Specifically designed for the '17-'19 models, this calibrator ensures that your speedometer reading remains accurate after modifications.

The Rough Country Speedometer Calibration Device is a user-friendly solution for addressing the discrepancies that arise when larger tires are installed on your vehicle. The factory settings on your truck's computer are calibrated for stock tire sizes, leading to inaccurate speedometer readings and potential issues with shift points and electronic stability control when larger tires are fitted. This calibrator effectively recalibrates your vehicle's ECM to align its functionality with the new tire dimensions. The device connects seamlessly to your car's Diagnostic Link Connector Port, and in just minutes, your speedometer reads true to your actual speed. Additionally, the calibrator offers an option to reset the speedometer to its original factory settings, which is particularly useful prior to vehicle servicing.

Features

• Accurate recalibration of speedometer reading for larger tires
• Plug and Play connectivity for easy installation
• Updates OE ECM Shift Points to accommodate larger tires
• Recalibrates Electronic Stability Control
• Option to return to stock settings
• One-year limited warranty

Please note that this calibrator is specifically designed for diesel models and is not compatible with gasoline models or for use in California due to emissions certifications. The Rough Country Speedometer Calibrator is intended for use with one vehicle at a time and locks to that vehicle until settings are reset to stock.

We invite you to reach out to us with any questions or for further assistance. Our knowledgeable team is available to guide you through the setup process and offer installation and customization services at our facilities located in Austin, Texas and Los Angeles, California. Please contact us directly at 512-982-9393 (TX) or 562-981-6800 (CA) for more information.

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