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:

    Information Displays
    Driver Information Center (DIC) The DIC displays information about the vehicle. It also displays warning messages if a system problem is detected. See Vehicle Messages for more information. All m ...

    Parking Brake (Electric)
    WARNING! On vehicles with a manual transmission, releasing the clutch and pressing the accelerator will release the Electric Parking Brake. If the vehicle is not in a gear, the vehicle coul ...

    Tire Chains
    WARNING Do not use tire chains. There is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle par ...