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:
Selecting an XM Channel
XM channels can be selected by using SEEK, SEEK, the TUNE
knob, or the menu system.
Selecting a Channel Using SEEK or SEEK (Radio with CD)
- Press and release SEEK or SEEK to go to the
previou ...
DIC Compass
The vehicle may have a compass in
the Driver Information Center (DIC).
See Compass for
information. ...
Trailer Sway Control (TSC)
The vehicle has a Trailer Sway Control (TSC) feature as part of the
StabiliTrak system.
If TSC detects that the trailer is swaying, the vehicle's brakes are
automatically applied.
When TSC ...