2003 Lexus GX 470 Navigation Manual 2 - Page 122

Automatic Air Conditioning Controls To change the sensitivity of the sensor switching between the RECIRCULATED and OUTSIDE AIR in the AUTOMATIC mode, push the air intake control button for a few seconds. The display changes as illustrated below. The sensitivity of the sensor can be adjusted only while the vehicle has been stopped. If manual on-off of the air conditioning is desired - Push the "A/C" switch to turn the air conditioning on and push it again to turn the air conditioning off. If you turn off the air conditioning manually, the EXHAUST GAS AUTOMATIC mode will be cancelled. If the outside temperature is lowered down to around 0_C (32_F), the air conditioning will turn off automatically. At this time, the indicator on the A/C button is off and the EXHAUST GAS AUTOMATIC indicator light remains on. However, the EXHAUST GAS AUTOMATIC mode does not operate. When the air conditioning turns on as with the raised temperature, the EXHAUST GAS AUTOMATIC mode resumes. 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. (b) Windshield defogging and defrosting UNG508 To remove interior fog on the windshield - Push the "FRONT WINDSHIELD" button. To remove frost or exterior fog on the windshield - 1. Push the upper side of the temperature control button until maximum figure appears on the temperature display. 2. Push the "FRONT WINDSHIELD" button. Touch the desired switch. When you push any button except the air intake control button, the above screen disappears. 113