If you are a 2017-2019 Legacy Body StyleGM truck or SUV owner who is looking for a device to help calibrate for your large aftermarket tires, read/clear trouble codes, adjust your speed limiter and more, then look no further. The 2017-2019 Legacy Body Style GM gas Flashcal for Truck is a product designed to give features and calibration tools to truck owners at a great price. The days of clunky, outdated calibration tools are over. Flashcal has trucks covered and the market cornered with quality and pricing that can't be matched. Covers 2017-2019 Legacy Body Style GMC/Chevy gas trucks Corrects speedometer for tire upgrades between 26" - 38", Speedometer recalibration for gear /axle swaps, Disable AFM, Speed/Rev Limiter Options, TPMS Options, Reads and clears diagnostic trouble codes, Digital Battery Voltage Display, Real-time Data Logging, Real-time Data Monitoring and Upgradeable to Flashpaq Tuning *Features may vary based on year, make, and model. Note this SKU is designed specifically for 2017-UP GM gas vehicles. *E-assist and hybrid vehicles not supported*