See also:

Doing Your Own Service Work
WARNING You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it. . Be sure you have sufficient knowledge, experience, the pr ...

Automatic Operation
The system automatically controls the fan speed, air delivery, air conditioning, and recirculation to heat or cool the vehicle to the selected temperature. When the AUTO indicator light is on, the ...

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 v ...