1998 Buick Park Avenue Owner's Manual - Page 171

TkntiIatioEs \rips @ Keep the hood m front air inlet free of ice, snow or d QII d any other Q ~ S ~ I X C ~ ~such as leaves. The heater m defroster will work better, reducing the chance of hgging YQW windows. Keep the air path under the front seats clear of objects. m s helps air to ckcukite throughout your vehicle. Passenger compammezt. f i r ~ g & % Passenger compartmentair, both outside air m d recirculated air, is routed through a passenger compartment filter,which is part of a three piece filter system. The filter removescertain particles fromthe air, including pollen andl dust particles. Reductions in OW, which may QCCW more quickly i dusty areas, n indicate that the filter needsto bereplaced early.