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 call again or try again after driving a to try the call again or try again after driving a few miles into another cellular area.

    See also:

    Making a Call
    Calls can be made using the following commands. Dial or Call: The dial or call command can be used interchangeably to dial a phone number or a stored name tag. Digit Dial: This command allows a ph ...

    Setting the Clock
    See Clock (Radio with CD and Touchscreen) for more information. ...

    Instrument Panel Illumination Control
    This feature controls the brightness of the instrument panel controls and infotainment display screen. The thumbwheel is located to the left of the steering column on the instrument panel. : Mo ...