For 1990-2009 cars only
Use the knobs located in the center of each outlet to change the direction of the airflow. Use the thumbwheels to open or close the outlets.
(Side Window Defog): Turn the thumbwheel to this symbol to use the side window defog setting. The air coming through the outlets will be directed toward the side windows to clear fog.(Open): Turn the thumbwheel to this symbol to open the outlets completely and allow the maximum amount of air to enter your vehicle. A small amount of air will still be directed to the side windows.
(Closed): Turn the thumbwheel to this symbol to close the outlets and minimize the amount of air entering the vehicle.
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 speed is at the highest setting, the passenger compartment air filter may need to be replaced. For more information, see Passenger Compartment Air Filter . |
