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:
Audio System
When using the in-vehicle Bluetooth system, sound comes through the vehicle's front audio system speakers and overrides the audio system. Use the audio system volume knob, during a call, to change the ...
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many parts have to be of top
quality and work well together if the vehicle is to have really good braking. The
vehicle was designed and tested with ...
Steering Wheel Controls
For vehicles with audio steering wheel controls, some audio controls can be adjusted
at the steering wheel.
(Push to Talk): For vehicles with
Bluetooth® or OnStar®, press to interact with th ...