OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview.

    See also:

    Engine Heater
    The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant h ...

    Programming the Power Windows
    If the vehicle battery has been recharged, disconnected or not working, the front power windows will need to be reprogrammed for the express-up feature to work. Before reprogramming, replace ...

    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 ...