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:
Emissions Inspection and Maintenance Programs
Some local governments may have programs to inspect the on-vehicle emission control
equipment. For the inspection, the emission system test equipment is connected to
the vehicle’s Data Link Connec ...
Engine Air Cleaner/Filter
See Engine Compartment Overview for the location of the engine air
cleaner/filter.
When to Inspect the Engine Air Cleaner/Filter
Inspect the air cleaner/filter at the scheduled maintenance inte ...
Nav (Navigation)
Press CONFIG to enter the configure menu options, then press CONFIG again, repeatedly
until Nav is selected or press the Nav screen button.
Voice Prompt
Press the Voice Prompt screen button to c ...