1999 Lexus SC 400 Owners Manual - Page 201

AIR CONDITIONING AND AUDIO set to OUTSIDE AIR mode. If recirculated air is used during heating, the windows will fog up more easily. If manual on-off of the air conditioning is desired - (A/C) button to turn the air conditioning on Push the and push it again to turn the air conditioning off. The air conditioning does not work if the outside temperature is lowered down to around 0_C (32_F). If the system is used for ventilation, heating in dry weather or removing frost or exterior fog on the windshield, turn the air conditioning off once it is no longer required. This will improve fuel economy. The air conditioning can be used for year-round automatic temperature control including cooling and dehumidifying operation. If the air conditioning compressor does not operate, the (A/C) button will blink. If the indicator indicator of the (A/C) button blinks even when the (A/C) of the button is pushed again, have the compressor checked by your nearest Lexus dealer. (b) Windshield defogging and defrosting See "(a) Climate control" for details on each button. To remove interior fog on the windshield - Push the (WINDSHIELD) button. To remove frost or exterior fog on the windshield - 1. Place the temperature control knob at the maximum temperature. 2. Push the (WINDSHIELD) button. (FAN) 3. Push the right side of the fan speed control button to set the fan speed at the maximum speed. 183