2004 Toyota Avalon Owners Manual - Page 186

'04 AVALON U (L/O 0408) Perform filter replacement periodically. Period of replacement (expected): For U.S.A.-Every 30000 miles For Canada-Every 16000 km NOTE: This is the normal maintenance period. This may change depending on operating conditions. If the symptoms of air conditioning efficiency problems occur, contact your Toyota dealer to have the filter checked and replaced. (Actual replacement time: Less than 10 minutes approximately) This air conditioning system has a high efficient air refiner filter which helps eliminate dust and pollen, thereby increasing your driving comfort. The air conditioning filter is set behind the glove box. The air conditioning filter may clog after long use. The filter may need to be replaced if the air flow of the air conditioner and heater experiences extreme reductions in operating efficiency, or if the windows begin to fog up easily. NOTICE Do not try to replace the air conditioning filter by yourself. Doing so may damage the vehicle. INFORMATION The air filter should be installed properly in position. The use of air conditioning with the air filter removed may cause deteriorated dustproof performance and then affect air conditioning performance. 186 2004 AVALON from Aug. '04 Prod. (OM41412U)