The Chevrolet Silverado 3500 HD Speedometer Calibrator by Rough Country is an essential tool for vehicle owners who have upgraded to larger tires. This handy device ensures your speedometer displays accurate readings, eliminating the discrepancies that often occur after such modifications.

When you upgrade to larger tires, your vehicle's onboard computer, which is programmed to read speed based on stock tire size, may not display your actual speed accurately. The Rough Country Speedometer Calibrator addresses this issue by recalibrating your speedometer to reflect the true speed corresponding to your new tire size. This plug-and-play calibrator connects directly to your vehicle's Diagnostic Link Connector Port and completes the adjustment process in just a few minutes. Beyond adjusting the speedometer, it updates your vehicle’s ECM to ensure accurate shift points and proper electronic stability control with your new tire size. Plus, it even reads and manages diagnostic codes, offering you a convenient way to handle "check engine" or "service needed" alerts. Included with a 1-year warranty, this device also provides the option to revert to stock settings prior to any service appointments.

Features

• Resets speedometer for accurate readings with larger tires.
• Suitable for gas & diesel models.
• Easy plug-and-play installation.
• Updates OE ECM Shift Points for larger tires.
• Recalibrates Electronic Stability Control to suit larger tires.
• Reads diagnostic trouble codes like "check engine light."
• Option to revert to stock settings.
• 1-year warranty included.

This calibrator cannot be used in California due to emissions certifications and is not compatible with 07-13 4.3L models. It is designed to function individually and cannot be paired with any performance programmer. Please be aware that once installed, it locks to one vehicle until returned to stock settings.

If you have any questions or require further information about the Chevrolet Silverado 3500 HD Speedometer Calibrator, please feel free to contact us directly. Our expert team is available at 512-982-9393 for our Austin, Texas location and 562-981-6800 for our Los Angeles, California area location. We also offer installation and customization services at both locations.

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