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:
Immobilizer Operation (Keyless Access)
This vehicle has a passive theft-deterrent system.
The system does not have to be manually armed or disarmed.
The vehicle is automatically immobilized when the transmitter leaves the vehicle.
The i ...
Lumbar Adjustment
To adjust the lumbar support:
► Press and hold the front or rear of the control to increase or decrease lumbar support.
► Press and hold the top or bottom of the control to raise or lo ...
Radio Messages for XM™ Only
See XM Radio Messages later in this
section for further detail. ...