GM Service Manual Online
For 1990-2009 cars only

Use the air outlets located in the center and outboard sides of the instrument panel, to change the direction of the air flowing through the vents.

Operation Tips

    • Clear away any ice, snow or leaves from the air inlets at the base of the windshield that may block the flow of air into your vehicle.
    • Use of non-GM approved hood deflectors may adversely affect the performance of the system.
    • Keep the path under the front seats clear of objects to help circulate the air inside of your vehicle more effectively.
    • If the airflow seems low when the fan is at the highest setting, the passenger compartment air filter may need to be replaced. For more information, see "Passenger Compartment Air Filter" following and Scheduled Maintenance .