See also:

Portable Audio Devices
This vehicle may have an auxiliary input located on the radio faceplate and a USB port located in the instrument panel storage area. External devices such as iPods™, laptop computers, MP3 players, ...

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 ...

Transmission Messages
SERVICE TRANSMISSION This message displays if there is a problem with the transmission. See your dealer. SHIFT TO PARK This message displays when the transmission needs to be shifted to P (Park). ...