See also:

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: ...

Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance. See Main ...

Operation
(Off): Turns the climate control system off. Outside air still enters the vehicle and is directed to the floor. The airflow direction and temperature can be adjusted. Temperature Control: Turn ...