Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Battery Replacement
Notice: When replacing the
battery, do not touch any of the
circuitry on the transmitter.
Static from your body could
damage the transmitter.
1. Remove the key from the
transmitter by pres ...
ALL WHEEL DRIVE OFF
If the vehicle has the All-Wheel
Drive (AWD) system, this message
displays when there is a temporary
condition making the AWD system
unavailable. The vehicle will run in
2WD. This could be c ...
Passenger Airbag Status Indicator
The vehicle has a passenger
sensing system. See Passenger
Sensing System for
important safety information.
The instrument panel has a
passenger airbag status indicator.
United States
Ca ...