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:
Air Quality Sensor
For vehicles with an air quality
sensor, the climate control system
adjusts to limit some exhaust fumes
from being pulled inside your
vehicle.
Press the AUTO button on the
climate control t ...
Charging System Light
The charging system light comes on briefly when the ignition is turned on,
but the engine is not running, as a check to show the light is working.
The light turns off when the engine is starte ...
Radio
Press CONFIG to enter the configure menu options, then press CONFIG again, repeatedly
until Radio is selected or press the Radio screen button to make changes for radio
information displayed, pres ...