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:

    Finding a Category (CAT) Station (XM™ Satellite Radio Service Only)
    CAT (Category): The radio may have the CAT button feature. To select and find a desired category: 1. Press the BAND button until the XM frequency displays. Press the CAT button to display the c ...

    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 ...

    Vehicle Storage
    WARNING Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting  for tips on working around a battery without gettin ...