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:
Fog Lamps
To turn on the fog lamps, the ignition and the headlamps or parking lamps must be on.
If the fog lamps are turned on while the exterior lamp switch is in the AUTO position, the headlamps come on ...
Radio Messages
CAL ERR (Calibration Error): The audio system
has been calibrated for your vehicle from the
factory. If CAL ERR displays, it means that the
radio has not been configured properly for
the vehicle a ...
Infotainment System Overview
The infotainment system is
controlled by using the buttons on
the faceplate and the touch screen.
See “Infotainment Control Buttons”
in this section for more information.
A. VOL/ (Volum ...