2011 Lexus IS250 250

209
3-1. Using the air conditioning system and defogger
3
Interior features
IS350/250_U Feet and windshield
■ Switching between outside air and recirculated air modes
IS250
Press .
The mode switches between (recycles air inside the vehicle) and (introduces air from outside the vehicle) modes each time
is pressed.
IS350
Press .
The mode switches among (recycles air inside the vehicle),
“AUTO” and (introduces air from outside the vehicle) modes each
time is pressed.
When the system is switched to automatic mode, the air conditioning
system operates automatically.
Defogging the windshield
Press .
The air conditioning system oper-
ates automatically.
Recirculated air mode may auto-
matically switch to (outside
air) mode when the ambient tem-
perature is low.

210
3-1. Using the air conditioning system and defogger
IS350/250_U
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 1
to 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

211
3-1. Using the air conditioning system and defogger
3
Interior features
IS350/250_U 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
Front outlets (center) 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

212
3-1. Using the air conditioning system and defogger
IS350/250_URear 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.
●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 recirculated air mode is used for an extended
period.
■Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched in accor-
dance with the temperature setting and the inside temperature.
■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.

213
3-1. Using the air conditioning system and defogger
3
Interior features
IS350/250_U
■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 windshield 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 .
■Air conditioning odors
●During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic mode.
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 air conditio ning system on longer than necessary when the engine
is off.

214
3-1. Using the air conditioning system and defogger
IS350/250_U
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.
With navigation system
Owners of models equipped with a navigation system should refer to the
“Navigation System Owner's Manual”.
Without navigation systemOn/off
The defoggers will automatically
turn off after 15 to 60 minutes.
The operation time changes
according to the ambient tem-
perature and vehicle speed.

215
3-1. Using the air conditioning system and defogger
3
Interior features
IS350/250_U
Windshield wiper de-icer∗
■The windshield wiper de-icer
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
■When the windshield wiper de-icer is on
Do not touch the glass at the lower part of the windshield or to the side of the front
pillars as the surfaces can become very hot and burn you.
∗: If equipped
This feature is used to prevent ice from building up on the windshield and
wiper blades.
On/off
The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.

216
IS350/250_U
3-2. Using the audio system
Audio system type
With navigation system
Owners of models equipped with a navigation system should refer to
the “Navigation System Owner's Manual”.
Without navigation system (type A)
CD player with changer and AM/FM radio
Without navigation system (type B)
CD player with changer and AM/FM radio