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:
Liftgate
WARNING
Exhaust gases can enter the vehicle if it is driven with the liftgate or
trunk/hatch open, or with any objects that pass through the seal between the
body and the trunk/hatch or liftgate. ...
Problems with Route Guidance
Inappropriate route guidance may occur under one or more of the following conditions:
You have not turned onto the road indicated.
Route guidance may not be available when using automatic rerout ...
Inserting a CD
(Single Disc Player)
With the printed side facing up,
insert a CD into the audio CD slot
until it is drawn in. The CD track
number and a Shuffle tab display
and playback begins.
If the ignition or radio is turned ...