2002 Buick LeSabre Owner's Manual - Page 291

Passenger Compartment Air Filter (If Equipped) If your vehicle has this feature, the outside air entering the vehicle is routed through a filter. The filter removes certain particles from the air, including pollen and dust particles. Reductions in airflow, which may occur more often in dusty areas, indicate that the filter may need to be replaced early. The filter should be replaced as part of the routine scheduled maintenance. See "Maintenance Schedule" in the Index for more information. The passenger compartment air filter is located on the passenger side at the base of the windshield and can be accessed through a removable panel under the hood of the vehicle. To check or replace the air filter: 1. With the hood open, unlatch and remove the access panel. 2. To remove the filter, press on the spring tab on the side of the filter housing and pull the filter out of the housing. 3. To install the new filter, press on the spring tab and insert the filter into the housing. The filter should be fully inserted into the upper and lower grooves and locked into place by the spring tab. 4. Reinstall the air filter access panel at the base of the windshield. 6-19