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.

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    Vehicles without Navigation System
    The RVC system displays a view of the area behind the vehicle. When the vehicle is on and shifted into R (Reverse) the video image appears on the inside rearview mirror. The video image disappears aft ...

    Towing with a Stability Control System
    When towing, the sound of the stability control system might be heard. The system is reacting to the vehicle movement caused by the trailer, which mainly occurs during cornering. This is normal when t ...

    When to Add Engine Oil
    If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for ...