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:
Entering the Feature Settings Menu
1. Turn the ignition on and place the vehicle in P (Park). To avoid excessive
drain on the battery, it is recommended that the headlamps are turned off.
2. Press the customization button to scroll ...
Ultrasonic Parking Assist
If available, Ultrasonic Rear Parking
Assist (URPA) system uses sensors
on the rear bumper to assist with
parking and avoiding objects while
in R (Reverse). It operates at
speeds less than 8 ...
3.5mm Jack
Connect a 3.5mm (1/8 in) cable to
the auxiliary input jack to use a
portable audio player.
Playback of an audio device that is
connected to the 3.5mm (1/8 in)
jack can only be controlled usin ...