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:

    Ignition Transmission Lock Check
    While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. - The ignition should turn to LOCK/OFF only when the shift lever is in P (Pa ...

    Twilight Sentinel
    This feature automatically turns the lamps on and off. A light sensor on top of the instrument panel makes the Twilight Sentinel® work, so be sure it is not covered. With Twilight Sentinel th ...

    Front Turn Signal Lamp (Base and Uplevel)
    To replace the Front Turn Signal Lamp: 1. Remove the turn signal lamp bulb socket from the headlamp assembly. 2. Remove the turn signal lamp bulb from the socket. 3. Replace the bulb in the bulb ...