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:

    Collision Damage Repair (U.S. and Canada)
    If the vehicle is involved in a collision and it is damaged, have the damage repaired by a qualified technician using the proper equipment and quality replacement parts. Poorly performed collision r ...

    Address Entry
    Address Entry: Enter either a city or street to use the address entry destination method. To enter a destination by inputting the city name first: 1. Press DEST. 2. Select (Address Entry). 3. ...

    SERVICE BRAKE ASSIST
    This message displays if there is a problem with the brake system. The brake system warning light and the antilock brake system (ABS) warning light may also display on the instrument panel cl ...