1999 Buick Park Avenue Owner's Manual - Page 161

yellowblue Ventilation Tips D Keep the hood and front air inlet free of ice, snow or any other obstruction such as leaves. The heater and defroster will work better, reducing the chance of fogging your windows. objects. This helps air to circulate throughout your vehicle. D Keep the air path under the front seats clear of Passenger Compartment Air Filter Passenger compartment air, both outside air and recirculated air, is routed through a passenger compartment filter, which is part of a three piece filter system. The filter removes certain particles from the air, including pollen and dust particles. Reductions in airflow, which may occur more quickly in dusty areas, indicate that the filter needs to be replaced early. The particle filter is located inside the air control module with an access panel underneath the instrument panel near the accelerator pedal. The filter should be replaced as part of routine scheduled maintenance. See "Maintenance Schedule" in the Index for replacement intervals. See your dealer for details on changing the filter. Once you remove your filter, if you choose not to replace it, it will not damage your vehicle. However, the air will no longer be filtered. 3-9