Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Compass
    Your vehicle may have a compass in the Driver Information Center (DIC). Compass Zone The zone is set to zone eight upon leaving the factory. Your dealer will set the correct zone for your location ...

    Remote Vehicle Start
    This feature allows you to start the engine from outside of the vehicle. It may also start up the vehicle's heating or air conditioning systems and rear window defogger. Normal operation of th ...

    Manual Mode
    Driver Shift Control (DSC) or Tap Shift Notice: Driving with the engine at a high rpm without upshifting while using Driver Shift Control (DSC), could damage the vehicle. Always upshift when ...