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 
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Advisor can run a check.
See also:
Rear Seat Audio (RSA) System
Vehicles with this feature allow the rear seat passengers to listen to and control
any of the music sources: radio, CD, DVD, or other auxiliary sources. The rear seat
passengers can control the sa ...
General Information
For service and parts needs, visit your dealer. You will receive genuine GM
parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:
...
Jump Starting
For more information about the vehicle battery, see Battery.
If the vehicle battery has run down, you may want to use another vehicle and
some jumper cables to start your vehicle. Be sure to use t ...