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:

    Delayed Entry Lighting
    The interior lamps will turn on if you open the door when it is dark enough outside. When you close the door with the ignition off, the interior lamps will stay on for up to 25 seconds or until ...

    Auto Heated Seats
    If equipped and turned on, this feature will automatically activate heated seats at the level required by the interior temperature. The auto heated seats can be turned off by using the heate ...

    CD Messages
    CHECK DISC: If an error message displays and/or the CD comes out, it could be for one of the following reasons: • It is very hot. When the temperature returns to normal, the CD should play. ...