air condition LEXUS IS250 2016 User Guide

212
3-1. Using the air conditioning system and defogger
nChanging the air outlets
Press .
The air outlets switch each time the is pressed. The air flow shown
on the display indicates the following.
Upper body
Upper body and feet
Feet

213
3-1. Using the air conditioning system and defogger
3

Interior features
Feet and windshield
nSwitching 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 control
operates automatically.
Recirculated air mode may auto-
matically switch to (outside
air) mode when the ambient tem-
perature is low.

214
3-1. Using the air conditioning system and defogger
Micro dust and pollen filter
Press .
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
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

216
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.

319
4-3. Do-it-yourself maintenance
4

Maintenance and care
Radiator and condenser
Check 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
nChecking 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.
nAdding fluid
CAUTION
nWhen 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
nBrake 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.

331
4-3. Do-it-yourself maintenance
4

Maintenance and care
nWhen to replace your vehicle’s tires
Tires should be replaced if:
lYou have tire damage such as cuts, splits, cracks deep enough to expose the
fabric or bulges indicating internal damage
lA tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.
nReplacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light comes on after blinking for 1 minute to indi-
cate a system malfunction.
nTire life
Any tire over 6 years old must be checked by a qualified technician even if they
have seldom or never been used or damage is not obvious.
nIf the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
nLow profile tires (models not equipped with 16-inch tires)
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to standard tires. Be sure to
use snow tires or tire chains* on snowy and/or icy roads and drive carefully at a
speed appropriate for road and weather conditions.
*: Tire chains cannot be mounted on 18-inch tires.
nMaximum load of tire
Check that the maximum load of the replaced tire is greater than 1 /2 of the Gross
Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is
greater.
As for the maximum load of the tire, see the load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the tire, and as for the Gross Axle Weight
Ratings (GAWR), see the Certification Label. (→P. 3 3 6 , 4 4 9 ) .