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:
Erasing Speed Memory
The cruise control set speed is erased from memory by pressing or if the
ignition is turned off. ...
Engine Compartment Overview
A. Radiator Pressure Cap. See Cooling System on page 10‑14.
B. Engine Coolant Recovery Cap. See Cooling System on page 10‑14.
C. Remote Negative (−) Terminal. See Jump Starting o ...
Making a Call
Calls can be made using the following commands.
Dial or Call: The dial or call command can be used interchangeably to dial a phone number or a stored name tag.
Digit Dial: This command allows a phon ...