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:
Blizzard Conditions
Being stuck in snow can be a serious situation. Stay with the vehicle unless
there is help nearby. If possible, use the Roadside Service (U.S. and Canada) or Roadside Service (Mexico)&nb ...
Automatic Headlamp
System
When it is dark enough outside, the
automatic headlamp system turns
on the headlamps at the normal
brightness, along with the taillamps,
sidemarker, parking lamps, and the
instrument panel l ...
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 ...