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:
Filling a Portable Fuel
Container
WARNING!
Never fill a portable fuel
container while it is in the vehicle.
Static electricity discharge from
the container can ignite the fuel
vapor. You can be badly burned
and the vehicle d ...
Folding Mirrors
Manual
Vehicles with manual fold mirrors
are folded inward toward the vehicle
to prevent damage when going
through an automatic car wash.
Push the mirror outward, to return it
to the origina ...
Brake System Messages
BRAKE FLUID LOW
This message is displayed when the brake fluid level is low. See Brake
Fluid.
BRAKES OVERHEATED
This message is displayed when the brakes are becoming overheated.
You may ...