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:
Competitive Driving Mode
To select this optional handling
mode, press the TCS/StabiliTrak
button quickly two times and
STABILITRAK COMPETITIVE
MODE displays in the Driver
Information Center (DIC). While in
the Sta ...
Portable Audio Devices
Some vehicles have a 3.5 mm (1/8 in) auxiliary input and a USB port located
in the center console.
External devices such as iPods®, laptop computers, MP3 players, CD changers,
and USB drives may ...
Cupholders
Cupholders are in the center console for the front passengers. Press down on
the access door release to open and use the front cupholders. Push the door back
down to close it. Push down and then b ...