See also:

Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push to try the call again or try again after driving a few miles into another ce ...

MP3 Music Menu
Press the Menu screen button while that source is active to access the menu. Press any of the following buttons on the MP3 Menu: Shuffle Songs: Press to play the tracks randomly. Press again to stop ...

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 on page 9‑112. Added electrical equipment ma ...