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:
Problems with Route Guidance
Inappropriate route guidance may occur under one or more of the following conditions:
You have not turned onto the road indicated.
Route guidance may not be available when using automatic rerout ...
Making Turns
Notice: Making very sharp turns while trailering could cause the trailer to come
in contact with the vehicle. The vehicle could be damaged. Avoid making very sharp
turns while trailering. When tur ...
Buying New Tires
GM has developed and matched specific tires for the vehicle. The original
equipment tires installed were designed to meet General Motors Tire Performance
Criteria Specification (TPC Spec) system rat ...