233IS350/250_Navi_U(L/O 0508)AIR CONDITIONINGTo change the sensitivity of the sensorswitching between the RECIRCU-LATED AIR and OUTSIDE AIR in the AU-TOMATIC mode, push the air intakecontrol button and hold it for a few sec-onds.The "Smog Sensor" screen will be dis-played.The sensitivity of the sensor can be ad-justed only while the vehicle has beenstopped.The sensitivity of the touch −screen buttonis set to be higher toward "HI" and lower to-ward "LO".Touch the desired button on the screen.When you push the "AUTO" button, theabove screen goes off.If manual on−off of the air conditioningis desired -Touch "A/C" to turn the air conditioning onand touch it again to turn the air condition-ing off. If you turn off the air conditioningmanually, the EXHAUST GAS AUTOMAT-IC mode will be cancelled.If the outside temperature is below 0 C(32F), the air conditioning will turn off au-tomatically. At this time, the indicator on"A/C" is off and the EXHAUST GAS AU-TOMATIC indicator light remains on. How-ever, the EXHAUST GAS AUTOMATICmode does not operate. When the air con-ditioning turns on as with the raised tem-perature, the EXHAUST GAS AUTOMAT-IC mode resumes.If the system is used for ventilation, heat-ing in dry weather or removing frost or ex-terior fog on the windshield, turn the airconditioning off once it is no longer re-quired. This will improve fuel economy.The air conditioning can be used for year −round automatic temperature control in-cluding cooling and dehumidifying opera-tion.If the air conditioning compressor does notoperate, the indicator of "A/C" will blink.If the indicator of "A/C" blinks even when"A/C" is touched again, have the com-pressor checked by your Lexus dealer.
