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:
Headlamps on Reminder
A reminder tone sounds when the headlamps or
parking lamps are manually turned on, if the
driver’s door is open and the ignition is in LOCK
or ACC. To turn the tone off, turn the knob all
the wa ...
Approaching a Hill
When you approach a hill, you need to decide
if it is one of those hills that is just too steep to
climb, descend, or cross. Steepness can be hard
to judge. On a very small hill, for example, there ...
Horn
Press near or on the horn symbols on the steering
wheel pad to sound the horn. ...