The Pulsar LT is a new in-line module for 2017-2022 3.6L that offers complete adjustability of many features, all from your steering wheel controls. Without modifying your truck's ECM, Pulsar LT offers you the ability to adjust throttle response, disable AFM, calibrate tire size, gear ratio, TPMS, and the ability to clear engine codes. It connects directly to the vehicle computer system, making installation a breeze and leaving your factory warranty intact. *When physically changing ring and pinion gears in the late model GM trucks, the factory cruise control will be disabled. While the Pulsar will allow you to recalibrate the speedometer for that gear change, it will not re-activate the disabled cruise control system. GM has this feature laced into the engine calibration files and would require full ECM tuning to enable cruise again.