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:
Power Outlets
The accessory power outlets can be used to plug in electrical equipment, such
as a cell phone or MP3 player.
The vehicle has three accessory power outlets located:
Inside the floor console stor ...
SERVICE BRAKE ASSIST
This message displays if there is a
problem with the brake system.
The brake system warning light and
the antilock brake system (ABS)
warning light may also display on
the instrument panel cl ...
Doing Your Own Service Work
If the vehicle is a hybrid, see the hybrid supplement for more information.
WARNING
It can be dangerous to work on your vehicle if you do not have the proper knowledge,
service manual, tools, ...