2002 Lexus GS 430 Owners Manual - Page 159

AIR CONDITIONING When the "FRONT WINDSHIELD" button is pushed while operating in automatic mode, the air conditioning is set to operate and the OUTSIDE AIR mode is set. If you push the "FRONT WINDSHIELD" button once again while in the FRONT WINDSHIELD mode, the mode then returns to the last mode used. (c) Air filter The air filter may clog after long use which will reduce the air flow. However, you can inspect the filter easily. When you inspect and replace the air filter, be sure to turn off the fan. CAUTION Do not use the "FRONT WINDSHIELD" button during cooled air operation in extremely humid weather. The difference between the temperature of the outside air and that of the windshield could cause the outer surface of the windshield to fog up blocking your vision. 20G008a 1. Open the glove box and remove the two covers. 142