Add-on Electrical Equipment

The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.

    See also:

    Courtesy Transportation
    To enhance your ownership experience, we and our participating dealers are proud to offer Courtesy Transportation, a customer support program for new vehicles. For warranty repairs during the Bu ...

    Automatic Transmission Shift Lock Control Function Check
    WARNING! When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough r ...

    Jump Starting
    For more information about the vehicle battery, see Battery  If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following st ...