Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push Advisor can run a check., and an Advisor can run a check.

    See also:

    Anti-Pinch Feature
    If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof from closing at the point of the obstruction. The sunroof a ...

    Transmission
    Driver Shift Control (DSC) Driver Shift Control (DSC) allows you to shift an automatic transmission similar to a manual transmission. To use the DSC feature: 1. Move the shift lever from D (Drive) ...

    Traction Control System (TCS)
    The vehicle may have a traction control system that limits wheel spin. The system turns on automatically every time the vehicle is started. ► To turn off traction control, press and release the ...