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:

    Horn
    Press on the steering wheel pad to sound the horn. ...

    Delayed Locking
    This feature delays the locking of the doors and the liftgate when using the power lock or the remote keyless entry system. The first press of the power door lock switch or lock button on the re ...

    Antilock Brake System (ABS) Warning Light
    The Antilock Brake System (ABS) light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the ABS light ...