2004 Toyota Sienna Navigation Manual - Page 642

04 SIENNA_U (L/O 0408) Checking the radiator and condenser If any of the above parts are extremely dirty or you are not sure of their condition, take your vehicle to a Toyota dealer. Checking and replacing the air conditioning filter To maintain the air conditioning efficiency, inspect and replace the air conditioning filter according to the maintenance schedule. In dusty areas or areas with heavy traffic flow, such as inner city or desert areas, early replacement may be required. (For scheduled maintenance information, please refer to the "Scheduled Maintenance Guide" or "Owner's Manual Supplement".) CAUTION To prevent burning yourself, be careful not to touch the radiator or condenser when the engine is hot. NOTICE To prevent damage to the radiator and condenser, do not perform the work by yourself. The air conditioning filter is 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 conditioning and heater experiences extreme reductions in operating efficiency, or if the windows begin to fog up easily. 460 2004 SIENNA from Aug. '04 Prod. (OM45422U)