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:
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
See Recommended Fluids and Lubricants for more information.
...
Rear Storage
For vehicles with a rear storage area, it is located in the rear cargo area of
the vehicle on the driver side.
Turn the knobs and pull the storage door to access. The door can be removed. ...
Audio System
When using the Bluetooth system, sound comes through the vehicle's front
audio system speakers and overrides the audio system.
Use the VOL/ knob during a call to change the volume
level.
The a ...