2020 Lexus IS350 air filter

TABLE OF CONTENTS6
IS350 AWD/IS350/IS300 AWD/IS300_U
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 454
Cleaning and protecting the vehicle interior.................. 458
7-2. Maintenance Maintenance requirements ..............................461
General mainte nance.............. 464
Emission inspection and maintenance (I/M)
programs.................................... 467
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................ 468
Hood ............................................... 470
Positioning a floor jack .............. 471
Engine compartment ............... 473
Tires ................................................. 485
Tire inflation pressure .............. 495
Wheels ........................................... 498
Air conditioning filter ...............500
Electronic key battery.............. 502
Checking and replacing fuses.............................................. 504
Light bulbs .................................... 507 8-1. Essential information
Emergency flashers ....................514
If your vehicle has to be stopped in an
emergency ................................. 515
If the vehicle is trapped in rising water ..................................516
8-2. Steps to take in an emergency
If your vehicle needs to be towed ............................................. 517
If you think something is wrong........................................... 523
Fuel pump shut off system.......................................... 524
If a warning light turns on or a warning buzzer
sounds ......................................... 525
If a warning message is displayed .................................... 532
If you have a flat tire .................. 559
If the engine will not start ........ 570
If the electronic key does not operate properly ............. 572
If the vehicle battery is discharged................................. 575
If your vehicle overheats......... 579
If the vehicle becomes stuck .............................................583
7Maintenance and care8When trouble arises

4206-2. Using the air conditioning system
IS350 AWD/IS350/IS300 AWD/IS300_U
■Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
■Side display operation screen (v ehicles with a navigation system)
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off
If the “A/C” indicator is tu rned off, the system will blow ambient temperature air or
heated air.
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 421)
With a Lexus Display Audio With a navigation system
Removing pollen from the air (Mic ro dust and pollen filter) (P. 421)
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4216-2. Using the air conditioning system
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Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U
Press , or select “AUTO” on the air conditioning control screen.
Adjust the temperature setting.
To stop the operation, press .
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automatic mode for functions other than that
operated is maintained.
■Adjusting the temperature for driv er and passenger seats separately
(“DUAL” mode)
To turn on the “DUAL” mode, perfor m any of the following procedures:
●Press or select “DUAL” on the air conditioning control screen.
●Select “DUAL” on the side display operation screen.(vehicles with a navi-
gation system)
●Adjust the passenger’s side temperature setting.
The indicator comes on when the “DUAL” mode is on.
While in “DUAL” mode, the temperature of the rear air outlets is set at the right-
hand side temperature setting.
■Switching between outside air and recirculated air modes
Press to change to recirculated air mode.
Press to change to outside air mode.
The indicator above the selected button comes on.
■Micro dust and pollen filter
Pollen is removed from the air and the air flows to the upper part of the body.
Select on the option control screen.
When the micro dust and pollen filter is on, is displayed on the air condition-
ing control screen.
In order to prevent the windshield from fo gging up when the outside air is cold, the
dehumidification function may operate.
The pollens are filtered out even if the micro dust and pollen filter is turned off.
Using automatic mode
Other functions
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4256-2. Using the air conditioning system
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Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U
■When the outside temperature falls to nearly 32F (0 C)
The dehumidification function may not operate even when is pressed or “A/C” is
selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu-
mulate 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.
■Air conditioning filter
P. 500
■Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features: P. 619)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ-
ence 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.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
●Do not touch the glass at lower part of the windshield or to the side of the front pillars
when the windshield wiper de-icer is on.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
stopped.
●Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

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Maintenance and care7
IS350 AWD/IS350/IS300 AWD/IS300_U
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 454
Cleaning and protecting the vehicle interior..................458
7-2. Maintenance Maintenance requirements ............................. 461
General maintenance .............. 464
Emission inspection and maintenance (I/M)
programs .................................... 467
7-3. Do-it-yourself maintenance Do-it-yourself service precautions................................468
Hood ............................................... 470
Positioning a floor jack ..............471
Engine compartment ............... 473
Tires .................................................485
Tire inflation pressure............... 495
Wheels ...........................................498
Air conditioning filter .............. 500
Electronic key battery ..............502
Checking and replacing fuses ..............................................504
Light bulbs..................................... 507

4697-3. Do-it-yourself maintenance
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Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
WARNING
The engine compartment contains many mechan isms and fluids that may move suddenly,
become hot, or become electrically energize d. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 480)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner f ilter removed may cause excessive engine wear due to dirt
in the air.

5007-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
Turn the engine switch off.
Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.
Press the tabs and remove the filter
cover.
Press the tabs and remove the filter
case.
Air conditioning filter
The air conditioning filter must be ch anged regularly to maintain air condi-
tioning efficiency.
Removal method
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5017-3. Do-it-yourself maintenance
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Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
Remove the air conditioning filter
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.
■Checking interval
Inspect and replace the air cond itioning filter according to the maintenance schedule. In
dusty areas or areas with heavy traffic fl ow, early replacement may be required. (For
scheduled maintenance informat ion, please refer to the “Owner’s Manual Supplement”
or “Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out cont inuously, replace the air conditioning filter.
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NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.