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:
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
scheduled maintenance intervals
and replace it at the first oil change
after each 80 000 km (50,000 mi)
interval. See Maintenance Schedule for more inform ...
Instrument Panel, Vinyl, and Other Plastic Surfaces
To remove dust, a soft cloth dampened with water can be used.
If a more thorough cleaning is necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust and dir ...
Compass Messages
CAL
This message is displayed when the
compass needs to be calibrated.
See Compass.
– – –
Three dashes will be displayed if the
compass needs service. See your
dealer for service. ...