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:
OnStar®
OnStar® uses several innovative technologies and live
advisors to provide a wide range of safety, security,
navigation, diagnostics, and calling services. ...
Shuttle Service
Shuttle service is the preferred
means of offering Courtesy
Transportation. Dealers may provide
shuttle service to get you to your
destination with minimal interruption
of your daily schedul ...
Connecting and Controlling a USB Drive
The infotainment system can only play back .mp3 and .wma files from a USB drive.
Only the first 10,000 songs are recognized on the device.
When a device is not supported, the message “No supported ...