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:
Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it
impossible to steal. ...
Adaptive Forward Lighting (AFL) Light
This light should come on briefly as the vehicle is started. If it does not
come on, have the vehicle serviced by your dealer.
This light comes on solid when there is a problem with the Adapti ...
Engine Oil Messages
CHANGE ENGINE OIL SOON
When this message displays, it
means that service is required for
the vehicle. See your dealer.
See Maintenance Schedule and Engine Oil for more information.
When you res ...