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:

    Express Window Anti-Pinch Override
    WARNING If express override is activated, the window will not reverse automatically. You or others could be injured and the window could be damaged. Before you use express override, make sur ...

    Disc Messages
    DISC ERROR: If this message displays and/or the disc ejects, it could be for one of the following reasons: - The radio system does not support the playlist format, the compressed audio form ...

    Manual Mode
    Driver Shift Control (DSC) The vehicle has Driver Shift Control (DSC). DSC controls the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by allowing you to ...