2016 LEXUS IS250 air conditioning

215
3-1. Using the air conditioning system and defogger
3

Interior features
Press “∧” (increase) or “∨”
(decrease) on .
From —3 (low) to 3 (high) can be
set.
Adjusting the position of and opening 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

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3-1. Using the air conditioning system and defogger
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
nUsing the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
lThe system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
lImmediately after is pressed, the fan may stop for a while until warm or
cool air is ready to flow.
lCool air may flow to the area around the upper body when the heater is on.
nUsing the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
extended period.
nWindow defogger feature
Recirculated air mode may automatically switch to (outside air) mode in situ-
ations where the windows need to be defogged.
nWhen outside air temperature approaches 32°F (0°C)
The air conditioning system may not operate even when is pressed.
nWhen 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
nAutomatic 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.
nMicro dust and pollen filter
lIn order to prevent the window from fogging up when the outside air is cold, the
following may occur.

218
3-1. Using the air conditioning system and defogger
Rear window and outside re ar view mirror defoggers
nThe defogger can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
nWhen 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.

306
4-3. Do-it-yourself maintenance
CAUTION
nWhen 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 )
nSafety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
nIf 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.

342
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
nRemoval method
Set the air conditioning system to recirculated mode.
The air conditioning filter case cannot be removed with the system in
the outside air mode.
Turn the “ENGINE START STOP” switch OFF.
Open the glove box. Lift and
remove the partition.
Remove the filter cover.
Remove the filter case.
STEP1
STEP2
STEP3
STEP4
STEP5

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4-3. Do-it-yourself maintenance
4

Maintenance and care
nChecking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the “Owner's
Manual Supplement/Scheduled Maintenance”.)
nIf air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
nCleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at
72 psi (500 kPa, 5.0 kgf/cm2
or bar).
If it is not available, have the
filter cleaned by your Lexus
dealer.
nReplacement method
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “↑UP” marks shown on the
filter and the filter case should
be pointing up.

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4-3. Do-it-yourself maintenance
NOTICE
nTo prevent damage to the system
lWhen using the air conditioning system, make sure that a filter is always installed.
lWhen cleaning the filter, do not clean the filter with water.