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:
Navigation System
If the vehicle has a navigation system, use of the system may result in the
storage of destinations, addresses, telephone numbers, and other trip
information.
Refer to the navigation manual for i ...
SERVICE PARK BRAKE
For vehicles with the electric parking
brake, this message displays if a
problem is detected with the electric
parking brake system. See your
dealer for service. ...
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt height adjuster for the driver and right
front passenger seating positions.
Adjust the height so that the shoulder portion of the belt is on the
shoulder and not f ...