2006 Lexus GS 300 Owners Manual - Page 287

AIR CONDITIONING (b) Windshield defogging and defrosting When the windshield air flow 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 windshield air flow button once again while in the windshield air flow mode, the mode then returns to the last mode used. G21010 CAUTION Do not use the windshield air flow 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. To remove interior fog on the windshield- Push the windshield air flow button. To remove frost or exterior fog on the windshield- 1. Push the "TEMP" (" ") button to set the "MAX HOT". 2. Push the windshield air flow button. 3. Touch fan speed control switch on the right side to obtain a maximum air flow. 4. Leave the "A/C" switch off. 263