2003 Toyota Prius Owners Manual - Page 224

Checking and replacing the air conditioning filter161. NOTICE If you spill the fluid, be sure to wipe it off to prevent it from damaging the parts or painting. 82p006a 27p007 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 become to fog up easily. The air conditioning filter is set behind the glove box. To maintain the air conditioning efficiency, inspect and replace the air conditioning filter according to the maintenance schedule. (For scheduled maintenance information, please refer to the "Owner's Manual Supplement/Scheduled Maintenance".) 1. Open the glove box. Turn and pull out 2 pins located on both sides. Pull down the glove box. 217