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:
Automatic Transmission
The automatic transmission has a shift lever located on the console between the
seats.
The selected gear is also shown in the instrument cluster.
P (Park): This position locks the drive wheels ...
Auxiliary Devices (Radio with CD and Touchscreen)
For vehicles equipped with the
MyLink or IntelliLink infotainment
system, see the separate MyLink/IntelliLink Features and Functions
Guide for more information.
The optional AUX input allows
...
Checking the Fluid Level
Prepare the vehicle as follows:
1. Park the vehicle on a level place. Keep the engine
running.
2. With the parking brake applied, place the shift lever
in P (Park).
3. With your foot on the bra ...