Top Speed Limiter Raise the top speed limiter to match the speed rating of high-performance tires	RPM Rev Limiter Raise an engine's RPM rev limiter for greater performance	Shifting Adjust individual automatic transmission shift points and increase shift firmness	Speedometer and Odometer Settings Correct speedometer and odometer for non-stock tire sizes and/or rear gear ratios
Cooling Fan On/Off Temperatures Lower cooling fan on/off temperatures to match thermostat rating	Vehicle Diagnostic Read and clear diagnostic trouble codes to turn off check engine light	Back-to-Stock or Option Settings Reset vehicle to stock settings or change options at any time	Internet Updatable Update software over the Internet (USB cable included)

NOTE: Adjustable features in the chart above depend on vehicle year, make, and model. Click More Info below for details.