2009 Lexus IS250 air condition

214
3-1. Using the air conditioning system and defogger
08_IS350/250_U_(L/O_0808)
Micro dust and pollen filterPress .
Outside air mode switches to (recirculated air) mode. Pol-
len is removed from the air and the
air flows to the upper part of the
body.
Usually the system will turn off
automatically after approximately
3 minutes.
To stop the operation, press again.
Adjusting the sensitivity of the air intake control in automatic mode (IS350 only)
Press for 2 or more sec-
onds.STEP1

215
3-1. Using the air conditioning system and defogger
3
Interior features
08_IS350/250_U_(L/O_0808) Press “

” (increase) or “ ”
(decrease) on .
From —3 (low) to 3 (high) can be
set.
Adjusting the position of and op ening and closing the air outlets
Center outlets Direct air flow to the left or right,
up or down
Turn the knob to open or close
the vent
Front outlets (right and left side) Direct air flow to the left or right,
up or down
Turn the knob to open or close
the vent
STEP2

216
3-1. Using the air conditioning system and defogger
08_IS350/250_U_(L/O_0808)Rear outlets
Direct air flow to the left or right,
up or down
Turn the knob fully to the outside
of the vehicle to close the vent
■Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
●The system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
●Immediately after is pressed, the fan may stop for a while until warm or
cool air is ready to flow.
●Cool air may flow to the area around the upper body when the heater is on.
■Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
extended period.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ-
ations where the windows need to be defogged.
■When outside air temperature approaches 32
F (0
C)
The air conditioning system may not operate even when is pressed.
■When the indicator light on flashes
Press and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
continues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.

217
3-1. Using the air conditioning system and defogger
3
Interior features
08_IS350/250_U_(L/O_0808)
■Automatic mode for air intake control (IS350 only)
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
■Micro dust and pollen filter
●In order to prevent the window from fogging up when the outside air is cold, the
following may occur.
• Outside air mode does not switch to .
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The dif-
ference between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent battery discharge
Do not leave the automatic air conditioning system on longer than necessary when
the engine is off.

218
3-1. Using the air conditioning system and defogger
08_IS350/250_U_(L/O_0808)
Rear window and outside rear view mirror defoggers
■The defogger can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirror, as it can become very hot
and burn you.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
On/off
The defoggers will automatically
turn off after approximately 15
minutes.

Maintenance and care4
291
08_IS350/250_U_(L/O_0808)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 292
Cleaning and protecting the vehicle interior .............. 295
4-2. Maintenance Maintenance requirements ....................... 298
General maintenance ......... 300
Emission inspection and maintenance (I/M)
programs............................... 303 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 304
Hood .......................................... 307
Positioning a floor jack ......... 308
Engine compartment ............ 310
Tires............................................ 325
Tire inflation pressure........... 336
Wheels ...................................... 340
Air conditioning filter ........... 342
Electronic key battery.......... 345
Checking and replacing fuses ........................................ 347
Headlight aim .......................... 361
Light bulbs................................ 363

306
4-3. Do-it-yourself maintenance
08_IS350/250_U_(L/O_0808)
CAUTION
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (

P. 3 1 9 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner
Driving with the air filter removed may cause excessive engine wear due to dirt in
the air. Also a backfire could cause a fire in the engine compartment.

319
4-3. Do-it-yourself maintenance
4
Maintenance and care
08_IS350/250_U_(L/O_0808)
Radiator and condenserCheck the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer.
Brake fluid■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
■ Adding fluid
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be burned.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
■Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.