OnStar Services
See also:
Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor
System (TPMS).
The Tire Pressure Monitor
alerts you when a
significant reduction in
pressure occurs in one or
more of the vehicle’s tires
...
Rear Window Defogger
(Rear Window Defogger):
Press to turn the rear window
defogger on or off.
The rear window defogger turns off
automatically after about
10 minutes. If turned on again it
runs for about five ...
Fuel System Messages
FUEL LEVEL LOW
This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
TIGHTEN GAS CAP
This message displays when the
fuel cap is not on tight. Tighten the
fuel c ...
