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 cellular area.
See also:
Backing Up
Hold the bottom of the steering wheel with one hand. To move the trailer to the left, move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly a ...
Playing an MP3/WMA File From a Disc (In Either the DVD or CD Slot)
If a disc is inserted into the top DVD slot, the rear seat operator can turn on the video screen and use the remote control to navigate the CD (tracks only).
(Tune): Turn to select MP3/WMA files.
...
USB-Supported File and Folder Structure
The radio supports:
• Up to 700 folders
• Up to eight folders in depth
• Up to 65,535 files.
• Folder and file names up to 64 bytes
• Files with an .mp3 or .wma file extension
• AAC ...