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:

    Object Detection System Messages
    PARKING ASSIST BLOCKED SEE OWNERS MANUAL This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist   for more information. PARKIN ...

    XM Tune Select (If Equipped)
    While the XM audio screen is displaying and a song is being listened to, press Tune Select to save that particular song. The XM Tune Select menu displays with options to store by the song title ...

    Manual Mode
    Driver Shift Control (DSC) or Tap Shift Notice: Driving with the engine at a high rpm without upshifting while using Driver Shift Control (DSC), could damage the vehicle. Always upshift when ...