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:

    Engine Drive Belt Routing
    If the vehicle is a hybrid, see the hybrid supplement for more information. ...

    Driving on Grades
    Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and n ...

    Bluetooth (Overview)
    For vehicles equipped with Bluetooth capability, the system can interact with many cell phones, allowing: - Placement and receipt of calls in a hands-free mode. - Sharing of the cell phone’s addr ...