Lexus UX 300e (2023 year). Manual in english

381

7-1. Maintenance and care

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Wheels and wheel ornaments

Remove any dirt immediately by using a

neutral detergent.

Wash detergent off with water immedi-

ately after use.

To protect the paint from damage, make

sure to observe the following precau-

tions.

• Do not use acidic, alkaline or abrasive

detergent.

• Do not use hard brushes.

• Do not use detergent on the wheels

when they are hot, such as after driving or

parking in hot weather.

Brake pads and calipers

Rust may form if the vehicle is parked with

wet brake pads or disc rotors, causing them

to stick. Before parking the vehicle after it is

washed, drive slowly and apply the brakes

several times to dry the parts.

Bumpers

Do not scrub with abrasive cleaners.

Front side windows water-repellent

coating

The following precautions can extend the

effectiveness of the water-repellent coat-

ing.

• Remove any dirt, etc., from the front side

windows regularly.

• Do not allow dirt and dust to accumulate

on the windows for a long period.

Clean the windows with a soft, damp cloth
as soon as possible.
• Do not use wax or glass cleaners that

contain abrasives when cleaning the win-

dows.

• Do not use any metallic objects to

remove condensation build up.

When the water-repellent performance

has become insufficient, the coating can

be repaired. Contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

Plated portions

If dirt cannot be removed, clean the parts as

follows:

Use a soft cloth dampened with an

approximately 5% solution of neutral

detergent and water to clean the dirt off.

Wipe the surface with a dry, soft cloth to

remove any remaining moisture.

To remove oily deposits, use alcohol wet

wipes or a similar product.

WARNING

When washing the vehicle

Do not apply water to the inside of the

motor compartment. Doing so may

cause the electrical components, etc. to

catch fire.

When cleaning the windshield (vehi-

cles with rain-sensing windshield wip-

ers)

Set the wiper switch to off.

If the wiper switch is in AUTO, the wipers

may operate unexpectedly in the follow-

ing situations, and may result in hands

being caught or other serious injuries

and cause damage to the wiper blades.

Off

AUTO

When the upper part of the windshield

where the raindrop sensor is located is

touched by hand

When a wet rag or similar is held close

to the raindrop sensor

If something bumps against the wind-

shield

382

7-1. Maintenance and care

WARNING

If you directly touch the raindrop sen-

sor body or if something bumps into

the raindrop sensor

Precaution regarding the rear

bumper

If the paint of the rear bumper is chipped

or scratched, the following systems may

not function correctly. If this occurs, con-

sult any authorized Lexus retailer or

Lexus authorized repairer, or any reli-

able repairer.

Lexus Safety System +

BSM (if equipped)

RCTA (if equipped)

PKSB (if equipped)

NOTICE

To prevent paint deterioration and

corrosion on the body and compo-

nents (aluminum wheels, etc.)

Wash the vehicle immediately in the

following cases:

• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the

paint surface

• If dead insects, insect droppings or

bird droppings are present on the

paint surface

• After driving in an area contaminated

with soot, oily smoke, mine dust, iron

powder or chemical substances

• If the vehicle becomes heavily soiled

with dust or mud

• If liquids such as benzene and gasoline

are spilled on the paint surface

If the paint is chipped or scratched,

have it repaired immediately.

To prevent the wheels from corroding,

remove any dirt and store in a place

with low humidity when storing the

wheels.

Cleaning the exterior lights

Wash carefully. Do not use organic

substances or scrub with a hard brush.

This may damage the surfaces of the

lights.

Do not apply wax to the surfaces of the

lights.

Wax may cause damage to the lenses.

When using an automatic car wash

(vehicles with rain-sensing windshield

wipers)

Set the wiper switch to the off position.

If the wiper switch is in AUTO, the wipers

may operate and the wiper blades may

be damaged.

When using a high pressure car wash

When washing the vehicle, do not

spray the camera or its surrounding

area directly with a high pressure

washer. Shock applied from high pres-

sure water may cause the device to not

operate normally.

Do not spray water directly on the

radar which is equipped behind the

emblem. Otherwise it may cause the

device to be damaged.

Do not bring the nozzle tip close to

boots (rubber or resin manufactured

cover), connectors or the following

parts. The parts may be damaged if

they come into contact with high-pres-

sure water.

• Traction related parts
• Steering parts
• Suspension parts
• Brake parts

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7-1. Maintenance and care

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

Remove dirt and dust using a vac-
uum cleaner. Wipe dirty surfaces
with a cloth dampened with luke-
warm water.



If dirt cannot be removed, wipe it off
with a soft cloth dampened with
neutral detergent diluted to approx-
imately 1%.
Wring out any excess water from
the cloth and thoroughly wipe off
remaining traces of detergent and
water.

Shampooing the carpets

There are several commercial foaming-

type cleaners available. Use a sponge or

brush to apply the foam. Rub in overlapping

circles. Do not use water. Wipe dirty sur-

faces and let them dry. Excellent results are

obtained by keeping the carpet as dry as

possible.

Handling the seat belts

Clean with mild soap and lukewarm water

using a cloth or sponge. Also check the

belts periodically for excessive wear, fray-

ing or cuts.

Front side windows with UV protective

coating (vehicles with UV protective

coating)

The front side windows have UV protective

coating. To prevent any damage to the UV

protective coating, observe the following:

NOTICE

Keep the cleaning nozzle at least 30

cm (11.9 in.) away from the vehicle

body. Otherwise resin section, such as

moldings and bumpers, may be

deformed and damaged. Also, do not

continuously hold the nozzle in the

same place.

Do not spray the lower part of the

windshield continuously.

If water enters the air conditioning sys-

tem intake located near the lower part

of the windshield, the air conditioning

system may not operate correctly.

Do not wash the underside of the vehi-

cle using a high pressure car washer. If

water enters the traction battery, the

EV system may malfunction.

Cleaning and protecting the
vehicle interior

Perform cleaning in a manner
appropriate to each component
and its material.

Protecting the vehicle interior

384

7-1. Maintenance and care

If the windows are dirty, gently wipe them

with a cloth soaked in water or lukewarm

water as soon as possible.

If the windows are very dirty, do not open

and close them repeatedly.

WARNING

Water in the vehicle

Do not splash or spill liquid in the vehi-

cle.

Doing so may cause the electrical

components, etc., to malfunction or

catch fire.

Do not get any of the SRS components

or wiring in the vehicle interior wet.

(



P.36)

An electrical malfunction may cause

the airbags to deploy or not function

properly, resulting in death or serious

injury.

Vehicles with wireless charger: Do not

let the wireless charger (



P.373) get

wet. Failure to do so may cause the

charger to become hot and cause

burns or could cause electric shock

resulting in death or serious injury.

Cleaning the interior (especially

instrument panel)

Do not use a polish wax or polish cleaner.

The instrument panel may reflect off the

windshield, obstructing the driver’s view

and leading to an accident, resulting in

death or serious injury.

NOTICE

Cleaning detergents

Do not use the following types of

detergent, as they may discolor the

vehicle interior or cause streaks or

damage to painted surfaces:

• Non-seat portions: Organic sub-

stances such as benzene or gasoline,

alkaline or acidic solutions, dye, and

bleach

• Seats: Alkaline or acidic solutions,

such as thinner, benzene, and alcohol

Do not use a polish wax or polish

cleaner. The instrument panel’s or

other interior part’s painted surface

may be damaged.

Water on the floor

Do not wash the vehicle floor with water.

Vehicle systems such as the audio sys-

tem may be damaged if water comes into

contact with electrical components such

as the audio system above or under the

floor of the vehicle. Water may also

cause the body to rust.

When cleaning the inside of the wind-

shield

Do not allow glass cleaner to contact the

lens. Also, do not touch the lens.

(



P.257)

Cleaning the inside of the rear win-

dow

Do not use a glass cleaner to clean the

rear window, as this may cause dam-

age to the rear window defogger

heater wires or antenna. Use a cloth

dampened with lukewarm water to

gently wipe the window clean. Wipe

the window in strokes running parallel

to the heater wires or antenna.

Be careful not to scratch or damage

the heater wires or antenna.

385

7-1. Maintenance and care

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

Remove dirt using a water-damp-
ened soft cloth or synthetic chamois.



Wipe the surface with a dry soft
cloth to remove any remaining
moisture.

Cleaning the areas with satin-finish

metal accents

The metal areas use a layer of real metal for

the surface. It is necessary to clean them

regularly. If dirty areas are left uncleaned

for long periods of time, they may be diffi-

cult to clean.

Cleaning the leather



Remove dirt and dust using a vac-
uum cleaner.



Wipe off any excess dirt and dust
with a soft cloth dampened with
diluted detergent.
Use a diluted water solution of
approximately 5% neutral wool
detergent.



Wring out any excess water from
the cloth and thoroughly wipe off all
remaining traces of detergent.



Wipe the surface with a dry, soft

cloth to remove any remaining
moisture.
Allow the leather to dry in a shaded
and ventilated area.

Cleaning the synthetic leather



Remove dirt and dust using a vac-
uum cleaner.



If the area gets dirty, wipe it off with
a soft cloth dampened with water
and wrung out.



If dirt cannot be removed by wiping
with water, wipe it off using cleaner
for leather.

Caring for leather areas

Lexus recommends cleaning the interior of

the vehicle at least twice a year to maintain

the quality of the vehicle’s interior.

Dirt on the synthetic leather areas

Ingrained dirt which has been left

uncleaned for long periods of time is diffi-

cult to clean. Lexus recommends cleaning

the area regularly.

NOTICE

Cleaning the front side windows

Do not use any compound or abrasive

product (e.g., glass cleaner, detergent,

wax) to clean the windows. It may dam-

age the coating.

Cleaning the areas with satin-
finish metal accents

Cleaning the leather areas

NOTICE

Preventing damage to leather sur-

faces

Observe the following precautions to

avoid damage to and deterioration of

leather surfaces:

Remove any dust or dirt from leather

surfaces immediately.

Do not expose the vehicle to direct

sunlight for extended periods of time.

Park the vehicle in the shade, espe-

cially during summer.

Do not place items made of vinyl, plas-

tic, or containing wax on the uphol-

stery, as they may stick to the leather

surface if the vehicle interior heats up

significantly.

386

7-2. Maintenance

7-2.Maintenance

Where to go for maintenance service?

In order to maintain your vehicle in the best

possible condition, Lexus recommends that

maintenance service operations as well as

other inspections and repairs be carried out

by authorized Lexus retailers or Lexus

authorized repairers, or any reliable repair-

ers. For repairs and services covered by

your warranty, please visit an authorized

Lexus retailer or repairer, who will use gen-

uine Lexus parts in repairing any difficulties

you may encounter. There can also be

advantages in utilizing authorized Lexus

retailer or repairers for non-warranty

repairs and services, as members of the

Lexus network will be able to expertly assist

you with any difficulties you may encounter.

Your Lexus retailer or Lexus authorized

repairer, or any reliable repairer will per-

form all of the scheduled maintenance on

your vehicle reliably and economically due

to their experience with Lexus vehicles.

Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.

For full details of your maintenance sched-
ule, refer to the “Lexus Service Booklet” or
“Lexus Warranty Booklet”.

What about do-it-yourself mainte-
nance?

Many maintenance items are easy to do
yourself if you have a little mechanical abil-
ity and a few basic automotive tools.
Note, however, that some maintenance
tasks require special tools and skills. These
are best performed by qualified techni-
cians. Even if you’re an experienced do-it-
yourself mechanic, we recommend that
repairs and maintenance be conducted by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer. Any authorized Lexus retailer or
repairer will keep a record of maintenance,
which could be useful should you ever
require Warranty Service. Should you
choose to select a qualified and equipped
professional other than an authorized
Lexus repairer to service or maintain your
vehicle, we recommend that you request
that a record of maintenance be kept.

Does your vehicle need repairs?

Be on the alert for changes in performance

and sounds, and visual tip-offs that indicate

service is needed. Some important clues

are:

Appreciable loss of power

Strange noises

Maintenance requirements

To ensure safe and economical
driving, day-to-day care and regu-
lar maintenance are essential.
Lexus recommends the following
maintenance:

WARNING

If your vehicle is not properly main-

tained

Improper maintenance could result in

serious damage to the vehicle and possi-

ble serious injury or death.

Handling of the 12-volt battery

12-volt battery posts, terminals and

related accessories contain lead and

lead compounds which are known to

cause brain damage. Wash your hands

after handling. (



P.394)

Scheduled maintenance

Do-it-yourself maintenance

387

7-2. Maintenance

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A fluid leak under the vehicle (However,

water dripping from the air conditioning

system after use is normal.)

Flat-looking tires, excessive tire squeal

when cornering, uneven tire wear

Vehicle pulls to one side when driven

straight on a level road

Strange noises related to suspension

movement

Loss of brake effectiveness, spongy feel-

ing brake pedal, pedal almost touches the

floor, vehicle pulls to one side when brak-

ing

If you notice any of these clues, take your
vehicle to any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer as soon as possible. Your vehicle
may need adjustment or repair.

388

7-3. Do-it-yourself maintenance

7-3.Do-it-yourself maintenance

Do-it-yourself service pre-
cautions

If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.

Maintenance

Items

Parts and tools

12-volt battery
condition
(



P.394)

• Warm water
• Baking soda
• Grease
• Conventional wrench

(for terminal clamp
bolts)

• Distilled water

Power control
unit/heater
coolant level
(



P.392, 394)

• “Toyota Super Long

Life Coolant” or a sim-
ilar high quality eth-
ylene glycol-based
non-silicate, non-
amine, non-nitrite and
non-borate coolant
with long-life hybrid
organic acid technol-
ogy
“Toyota Super Long
Life Coolant” is pre-
mixed with 50% cool-
ant and 50% deion-
ized water.

• Funnel (used only for

adding coolant)

Fuses (



P.416)

• Fuse with same

amperage rating as
original

Light bulbs
(



P.419)

• Bulb with same num-

ber and wattage rat-
ing as original

Radiator and
condenser
(



P.393)

−

Tire inflation
pressure
(



P.410)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(



P.396)

• Water or washer fluid

containing antifreeze
(for winter use)

• Funnel (used only for

adding water or
washer fluid)

WARNING

The motor compartment contains many

mechanisms and fluids that may move

suddenly, become hot, or become elec-

trically energized. To avoid death or seri-

ous injury, observe the following

precautions.

When working on the motor com-

partment

Make sure that “IGNITION ON” on

the multi-information display and the

“READY” indicator are both off.

Keep hands, clothing and tools away

from the moving fans.

Be careful not to touch the motor,

power control unit, radiator, etc., right

after driving as they may be hot. Coo-

lant and other fluids may also be hot.

Do not leave anything that may burn

easily, such as paper and rags, in the

motor compartment.

Do not smoke, cause sparks or expose

an open flame to the 12-volt battery.

12-volt battery fumes are flammable.

Items

Parts and tools

389

7-3. Do-it-yourself maintenance

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Pull the hood lock release lever.

The hood will pop up slightly.

Pull up the auxiliary catch lever and
lift the hood.

WARNING

Be extremely cautious when working

on the 12-volt battery. It contains poi-

sonous and corrosive sulfuric acid.

Never touch, disassemble, remove or

replace the high voltage parts, cables

and their connectors. It can cause

severe burns or electric shock that

may result in death or serious injury.

Take care because brake fluid can

harm your hands or eyes and damage

painted surfaces. If fluid gets on your

hands or in your eyes, flush the

affected area with clean water imme-

diately. If you still experience discom-

fort, consult a doctor.

When working near the electric cool-

ing fans or radiator grille

Be sure the power switch is OFF.

With the power switch in ON, the elec-

tric cooling fans may automatically start

to run if the air conditioning is on and/or

the coolant temperature is high.

(



P.393)

Safety glasses

Wear safety glasses to prevent flying or

falling material, fluid spray, etc., from get-

ting in your eyes.

NOTICE

If the fluid level is low or high

It is normal for the brake fluid level to go

down slightly as the brake pads wear or

when the fluid level in the accumulator is

high.

If the reservoir needs frequent refilling, it

may indicate a serious problem.

Hood

Opening the hood

390

7-3. Do-it-yourself maintenance

Hold the hood open by inserting
the supporting rod into the slot.

Front

WARNING

Pre-driving check

Check that the hood is fully closed and

locked.

If the hood is not locked properly, it may

open while the vehicle is in motion and

cause an accident, which may result in

death or serious injury.

After installing the support rod into

the slot

Make sure the rod is properly inserted

into the slot to prevent the hood from

shutting on your head or body.

NOTICE

When closing the hood

Be sure to return the support rod to its

clip before closing the hood. Closing the

hood without returning the support rod

properly may cause the hood to be dam-

aged.

Positioning a floor jack

When using a floor jack, follow the
instructions in the manual provided
with the jack and perform the oper-
ation safely.
When raising your vehicle with a
floor jack, position the jack cor-
rectly. Improper placement may
damage your vehicle or cause
injury.

Location of the jack point

392

7-3. Do-it-yourself maintenance

Fuse boxes (



P.416)

Power control unit coolant reservoir (



P.392)

12-volt battery (



P.394)

Radiator (



P.393)

Condenser (



P.393)

Electric cooling fans

Washer fluid tank (



P.396)

Heater coolant reservoir (



P.394)

The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the EV system is cold.

Motor compartment

Components

A
B
C
D

E
F

Checking the power control unit
coolant

393

7-3. Do-it-yourself maintenance

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Reservoir cap

“F” line

“L” line

If the level is on or below the “L” line, add
coolant up to the “F” line. (



P.465)

Coolant selection

Only use “Toyota Super Long Life Coolant”

or a similar high quality ethylene glycol

based non-silicate, non-amine, non-nitrite,

and non-borate coolant with long-life

hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized

water.

(Minimum temperature: -35°C [-31°F])
For more details about coolant, contact any

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer.

If the coolant level drops within a short

time of replenishing

Visually check the radiator, hoses, power

control unit coolant reservoir caps, drain

cock and water pump.
If you cannot find a leak, have any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer, test the

cap and check for leaks in the cooling sys-

tem.

Check the radiator and condenser and
clear away any foreign objects.
If either of the above parts is extremely
dirty or you are not sure of their condi-
tion, have your vehicle inspected by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

A
B
C

WARNING

When the EV system is hot

Do not remove the power control unit

coolant reservoir caps.
The cooling system may be under pres-

sure and may spray hot coolant if the cap

is removed, causing serious injuries, such

as burns.

NOTICE

When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct mixture

of water and antifreeze must be used to

provide proper lubrication, corrosion

protection and cooling. Be sure to read

the antifreeze or coolant label.

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the radiator and con-
denser

WARNING

When the EV system is hot

Do not touch the radiator or condenser

as they may be hot and cause serious

injuries, such as burns.

394

7-3. Do-it-yourself maintenance

The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the EV system is cold.

Reservoir cap

“F” line

“L” line

If the level is on or below the “L” line, add
coolant up to the “F” line.

Coolant selection

Only use “Toyota Super Long Life Coolant”

or a similar high quality ethylene glycol

based non-silicate, non-amine, non-nitrite,

and non-borate coolant with long-life

hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized

water.

(Minimum temperature: -35°C [-31°F])
For more details about coolant, contact any

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer.

If the coolant level drops within a short

time of replenishing

Visually check the hoses, heater coolant

reservoir caps, drain cock and water pump.
If you cannot find a leak, have any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer, test the

cap and check for leaks in the cooling sys-

tem.

Check the 12-volt battery as follows.

12-volt battery exterior

Make sure that the 12-volt battery ter-
minals are not corroded and that there
are no loose connections, cracks, or

WARNING

When the electric cooling fans are

operating

Do not touch the motor compartment.
With the power switch in ON, the elec-

tric cooling fans may automatically start

to run if the air conditioning is on and/or

the coolant temperature is high. Be sure

the power switch is OFF when working

near the electric cooling fans or radiator

grille.

Checking the heater coolant

A
B
C

WARNING

When the heater system is hot

Do not remove the heater coolant reser-

voir caps.
The heater system may be under pres-

sure and may spray hot coolant if the cap

is removed, causing serious injuries, such

as burns.

NOTICE

When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct mixture

of water and antifreeze must be used to

provide proper lubrication, corrosion

protection and cooling. Be sure to read

the antifreeze or coolant label.

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the 12-volt battery

395

7-3. Do-it-yourself maintenance

ain

ten

ce a
nd

loose clamps.

Terminals

Hold-down clamp

Checking 12-volt battery fluid

Check that the level is between the
“UPPER LEVEL” and “LOWER
LEVEL” lines.

“UPPER LEVEL” line

“LOWER LEVEL” line

If the fluid level is at or below the “LOWER
LEVEL” line, add distilled water.

Adding distilled water

Remove the vent plug.

Add distilled water.

If the “UPPER LEVEL” cannot be seen,

check the fluid level by looking directly at

the cell.

Put the vent plug back on and close
it securely.

Before recharging

When recharging, the 12-volt battery pro-

duces hydrogen gas which is flammable

and explosive. Therefore, observe the fol-

lowing precautions before recharging:

If recharging with the 12-volt battery

installed on the vehicle, be sure to dis-

connect the ground cable.

Make sure the power switch on the char-

ger is off when connecting and discon-

necting the charger cables to the 12-volt

battery.

After recharging/reconnecting the 12-

volt battery

The EV system may not start. Follow the

procedure below to initialize the system.

Shift the shift position to P.

Open and close any of the doors.

Restart the EV system.

Unlocking the doors using the smart

entry & start system may not be possible

immediately after reconnecting the 12-

volt battery. If this happens, use the wire-

less remote control or the mechanical

key to lock/unlock the doors.

Start the EV system with the power

switch in ACC. The EV system may not

start with the power switch turned off.

However, the EV system will operate

normally from the second attempt.

The power switch mode is recorded by

the vehicle. If the 12-volt battery is dis-

A
B

396

7-3. Do-it-yourself maintenance

connected and reconnected, the vehicle

will return the power switch mode to the

status it was in before the 12-volt battery

was disconnected. Make sure to turn off

the power switch before disconnecting

the 12-volt battery. Take extra care when

connecting the 12-volt battery if the

power switch mode prior to the 12-volt

battery being disconnected is unknown.

If the EV system will not start even after
multiple attempts at all the methods above,
contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer.

If none of the washer do not work or
the “Windshield Washer Fluid Low”

WARNING

Chemicals in the 12-volt battery

Batteries contain poisonous and corro-

sive sulfuric acid and may produce

hydrogen gas which is flammable and

explosive. To reduce the risk of death or

serious injury, take the following precau-

tions while working on or near the 12-volt

battery:

Do not cause sparks by touching the

12-volt battery terminals with tools.

Do not smoke or light a match near the

12-volt battery.

Avoid contact with eyes, skin and

clothes.

Never inhale or swallow electrolyte.

Wear protective safety glasses when

working near the 12-volt battery.

Keep children away from the 12-volt

battery.

Where to safely charge the 12-volt

battery

Always charge the 12-volt battery in an

open area. Do not charge the 12-volt

battery in a garage or closed room

where there is insufficient ventilation.

Emergency measures regarding

electrolyte

If electrolyte gets in your eyes

Flush your eyes with clean water for at

least 15 minutes and get immediate

medical attention. If possible, continue

to apply water with a sponge or cloth

while traveling to the nearest medical

facility.

If electrolyte gets on your skin

Wash the affected area thoroughly. If

you feel pain or burning, get medical

attention immediately.

If electrolyte gets on your clothes

It can soak through clothing on to your

skin. Immediately take off the clothing

and follow the procedure above if nec-

essary.

If you accidentally swallow electrolyte

Drink a large quantity of water or milk.

Get emergency medical attention

immediately.

When there is insufficient 12-volt bat-

tery fluid

Do not use if there is insufficient fluid in

the 12-volt battery. There is a possible

danger that the 12-volt battery may

explode.

NOTICE

When recharging the 12-volt battery

Never recharge the 12-volt battery while

the EV system is operating. Also, be sure

all accessories are turned off.

When adding distilled water

Avoid overfilling. Water spilled during

12-volt battery recharging may cause

corrosion.

Adding the washer fluid

397

7-3. Do-it-yourself maintenance

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appears on the multi-information dis-
play, the washer tank may be empty.
Add washer fluid.

Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as exces-
sive wear on one side of the tread.

New tread

Worn tread

Treadwear indicator

The location of treadwear indicators is
shown by a “TWI” or “

” mark, etc.,

molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire.

WARNING

When adding washer fluid

Do not add washer fluid when the EV

system is hot or operating as washer fluid

contains alcohol and may catch fire if

spilled on the motor, etc.

NOTICE

Do not use any fluid other than

washer fluid

Do not use soapy water or antifreeze

instead of washer fluid.

Doing so may cause streaking on the

vehicle’s painted surfaces, as well as

damaging the pump leading to problems

of the washer fluid not spraying.

Diluting washer fluid

Dilute washer fluid with water as neces-

sary.

Refer to the freezing temperatures listed

on the label of the washer fluid bottle.

Tires

Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.

Checking tires

A
B
C

398

7-3. Do-it-yourself maintenance

When to replace your vehicle’s tires

Tires should be replaced if:

The treadwear indicators are showing on

a tire.

You have tire damage such as cuts, splits,

cracks deep enough to expose the fabric,

and bulges indicating internal damage

A tire goes flat repeatedly or cannot be

properly repaired due to the size or loca-

tion of a cut or other damage

If you are not sure, consult any authorized

Lexus retailer or Lexus authorized repairer,

or any reliable repairer.

Tire life

Any tire over 6 years old must be checked

by a qualified technician even if it has sel-

dom or never been used or damage is not

obvious.

If the tread on snow tires wears down

below 4 mm (0.16 in.)

The effectiveness of the tires as snow tires is

lost.

Replacing tires

Your vehicle may not be equipped with the

following tools and jack for replacing a tire.

In this case, when replacing tires, purchase

tools and jack. Tools and jack can be pur-

chased at any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer.

Wheel nut wrench

Jack

Jack handle

Rotate the tires in the order shown.

WARNING

When inspecting or replacing tires

Observe the following precautions to

prevent accidents.

Failure to do so may cause damage to

parts of the drivetrain as well as danger-

ous handling characteristics, which may

lead to an accident resulting in death or

serious injury.

Do not mix tires of different makes,

models or tread patterns.

Also, do not mix tires of remarkably

different treadwear.

Do not use tire sizes other than those

recommended by Lexus.

Do not mix differently constructed

tires (radial, bias-belted or bias-ply

tires).

Do not mix summer, all season and

snow tires.

Do not use tires that have been used

on another vehicle.

Do not use tires if you do not know

how they were used previously.

Do not tow anything if a tire that has

been repaired using the emergency

tire puncture repair kit is installed. The

load on the tire may cause unexpected

damage to the tire.

NOTICE

Driving on rough roads

Take particular care when driving on

roads with loose surfaces or potholes.

These conditions may cause losses in tire

inflation pressure, reducing the cushion-

ing ability of the tires. In addition, driving

on rough roads may cause damage to

the tires themselves, as well as the vehi-

cle’s wheels and body.

If tire inflation pressure of each tire

becomes low while driving

Do not continue driving, or your tires

and/or wheels may be ruined.

Tire rotation

399

7-3. Do-it-yourself maintenance

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To equalize tire wear and help extend tire
life, Lexus recommends that tire rotation is
carried out approximately every 10000
km (6000 miles).
Do not fail to initialize the tire pressure
warning system after tire rotation.

When rotating the tires

Make sure that the power switch is OFF. If

the tires are rotated while the power switch

is in ON, the tire position information will

not be updated.

If this accidentally occurs, either turn the

power switch to OFF and then to ON, or

initialize the tire pressure warning system

after checking that the tire pressure is prop-

erly adjusted.

Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low tire inflation pressure
before serious problems arise.



If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. (



P.433, 440)



The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (



P.164)

The illustration used is intended as an
example, and may differ from the image
that is actually displayed on the multi-infor-
mation display.

Routine tire inflation pressure checks

The tire pressure warning system does not

replace routine tire inflation pressure

checks. Make sure to check tire inflation

pressure as part of your routine of daily

vehicle checks.

Tire inflation pressure

It may take a few minutes to display the

tire inflation pressure after the power

switch is turned to ON. It may also take a

few minutes to display the tire inflation

pressure after inflation pressure has been

adjusted.

Tire inflation pressure changes with tem-

perature.

The displayed values may also be differ-

ent from the values measured using a tire

pressure gauge.

Situations in which the tire pressure

warning system may not operate prop-

erly

In the following cases, the tire pressure

warning system may not operate prop-

erly.

• If non-genuine Lexus wheels are used.

• A tire has been replaced with a tire that is

not an OE (Original Equipment) tire.

• A tire has been replaced with a tire that is

not of the specified size.

• Tire chains etc. are equipped.

• An auxiliary-supported run-flat tire is

equipped.

Tire pressure warning system

400

7-3. Do-it-yourself maintenance

• If a window tint that affects the radio wave

signals is installed.

• If there is a lot of snow or ice on the vehi-

cle, particularly around the wheels or

wheel housings.

• If the tire inflation pressure is extremely

higher than the specified level.

• If wheels without tire pressure warning

valves and transmitters are used.

• If the ID code on the tire pressure warn-

ing valves and transmitters is not regis-

tered in the tire pressure warning

computer.

Performance may be affected in the fol-

lowing situations.

• Near a TV tower, electric power plant,

gas station, radio station, large display,

airport or other facility that generates

strong radio waves or electrical noise

• When carrying a portable radio, cellular

phone, cordless phone or other wireless

communication device

If tire position information is not correctly
displayed due to the radio wave conditions,
the display may be corrected by driving and
changing the radio wave conditions.

When the vehicle is parked, the time

taken for the warning to start or go off

could be extended.

When tire inflation pressure declines rap-

idly for example when a tire has burst, the

warning may not function.

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning

system will change in accordance with the

conditions under which it was initialized. For

this reason, the system may give a warning

even if the tire pressure does not reach a

low enough level, or if the pressure is higher

than the pressure that was adjusted to when

the system was initialized.

When replacing tires or wheels, tire

pressure warning valves and transmit-
ters must also be installed.

When new tire pressure warning valves
and transmitters are installed, new ID
codes must be registered in the tire pres-
sure warning computer and the tire pres-
sure warning system must be initialized.
(



P.403)

When replacing the 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 10 minutes,

the tire pressure warning light blinks for 1

minute and stays on to indicate a system

malfunction.

Installing tire pressure warning
valves and transmitters

NOTICE

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps

When removing or fitting the wheels,

tires or the tire pressure warning

valves and transmitters, contact any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer as the tire pressure warning

valves and transmitters may be dam-

aged if not handled correctly.

Make sure to install the tire valve caps.

If the tire valve caps are not installed,

water could enter the tire pressure

warning valves and the tire pressure

warning valves could be bound.

When replacing tire valve caps, do not

use tire valve caps other than those

specified. The cap may become stuck.

401

7-3. Do-it-yourself maintenance

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The tire pressure warning system
must be initialized in the following
circumstances:



When rotating the tires.



When the tire inflation pressure is
changed such as when changing tire
size. (When there are multiple spec-
ified pressures)



After registering the ID codes.
(



P.403)

When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark
pressure.

How to initialize the tire pressure
warning system

Park the vehicle in a safe place and
stop the EV system for 20 minutes
or more.

Initialization cannot be performed while

the vehicle is moving.

Adjust the tire inflation pressure to
the specified cold tire inflation
pressure level.

Make sure to adjust the tire pressure to the

specified cold tire inflation pressure level.

The tire pressure warning system will oper-

ate based on this pressure level.

Start the EV system (



P.224)

Press

of the meter con-

trol switches and select

Press

of the meter con-

trol switches and select “Vehicle
Settings”, and then press “OK”.

Press

of the meter con-

trol switches and select “TPWS”,
and then press “OK”.

Press

of the meter con-

trol switches and select “Set Pres-
sure”, and then press and hold
“OK” until the tire pressure warn-
ing light starts blinking.

A message is displayed on the multi-infor-

mation display. Also, “--” is displayed for

inflation pressure of each tire on the multi-

information display while the tire pressure

warning system determines the position.

Drive at approximately 40 km/h
(25 mph) or more for approxi-
mately 10 to 30 minutes.

NOTICE

To avoid damage to the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer or other

qualified service shop as soon as possi-

ble. After use of liquid sealant, make sure

to replace the tire pressure warning

valve and transmitter when repairing or

replacing the tire.

Initializing the tire pressure
warning system

402

7-3. Do-it-yourself maintenance

When initialization is complete, the infla-

tion pressure of each tire will be displayed

on the multi-information display.
Even if the vehicle is not driven at approxi-

mately 40 km/h (25 mph) or more, initial-

ization can be completed by driving for a

long time. However, if initialization does

not complete after driving for 1 hour or

more, park the vehicle in a safe place for

approximately 20 minutes and then drive

the vehicle again.

When initializing

Initialization is performed while driving at

a vehicle speed of approximately 40

km/h (25 mph) or more.

Make sure to carry out initialization after

adjusting the tire inflation pressure.

Also, make sure the tires are cold before

carrying out initialization or tire inflation

pressure adjustment.

The tire pressure warning system can be

initialized by yourself, but depending on

the driving conditions and driving envi-

ronment, initialization may take some

time to complete.

The initialization operation

If you have accidentally turned the power

switch off during initialization, it is not

necessary to manually restart the initial-

ization again, as initialization will restart

automatically the next time the power

switch is turned to ON.

If you accidentally perform initialization

when initialization is not necessary, adjust

the tire inflation pressure to the specified

level when the tires are cold, and conduct

initialization again.

While the position of each tire is being

determined and the inflation pressures

are not being displayed on the multi-

information display, if the inflation pres-

sure of a tire drops, the tire pressure

warning light will come on.

If the tire pressure warning system is not

initialized properly

In the following situations, initialization

may take longer than usual to be com-

pleted or may not be possible. Normally,

initialization completes within approxi-

mately 30 minutes.

• Vehicle is not driven at approximately 40

km/h (25 mph) or more

• Vehicle is driven on unpaved roads

• Vehicle is driven near other vehicles and

system cannot recognize tire pressure

warning valve and transmitters of your

vehicle over those of other vehicles

If initialization does not complete after driv-
ing for 1 hour or more, park the vehicle in a
safe place for approximately 20 minutes
and then drive the vehicle again.

If the vehicle is reversed during initializa-

tion, the data up to that point is reset, so

perform the initialization procedure

again from the beginning.

In the following situations, initialization

will not be started or was not completed

properly and the system will not operate

properly. Perform the initialization pro-

cedure again.

• If, when attempting to start initialization,

the tire pressure warning light does not

blink 3 times.

• If, when the vehicle has been driven for

about 20 minutes after performing initial-

ization, the tire pressure warning light

blinks for approximately 1 minute and

then illuminates.

If the inflation pressure of each tire is still not

displayed, have the vehicle inspected by

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

WARNING

When initializing the tire pressure

warning system

Do not initialize tire inflation pressure

without first adjusting the tire inflation

pressure to the specified level. Other-

wise, the tire pressure warning light may

not come on even if the tire inflation

pressure is low, or it may come on when

the tire inflation pressure is actually nor-

mal.

403

7-3. Do-it-yourself maintenance

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The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
When registering the ID codes, per-
form the following procedure.

Park the vehicle in a safe place, wait
for approximately 20 minutes, and
then start the EV system.
(



P.224)

Press

of the meter con-

trol switches and select

Press

of the meter con-

trol switches and select “Vehicle
Settings”, and then press “OK”.

Press

of the meter con-

trol switches and select “TPWS”,
and then press “OK”.

Press

of the meter con-

trol switches and select “Change
Wheel Set”, and then press and
hold “OK” until the tire pressure
warning light starts slowly blinking
3 times.

The change wheel set mode is activated

and registration is started.
A message is displayed on the multi-infor-

mation display, and “--” is displayed for

inflation pressure of each tire. Then, the tire

pressure warning light blinks rapidly for

approximately 1 minute and stays on.

Drive at approximately 40 km/h
(25 mph) or more for approxi-
mately 10 to 30 minutes.

Registration is complete when the tire

pressure warning light turns off and the

inflation pressure of each tire is displayed

on the multi-information display.
Even if the vehicle is not driven at approxi-

mately 40 km/h (25 mph) or more, regis-

tration can be completed by driving for a

long time. However, if registration does

not complete after driving for 1 hour or

more, perform the procedure again from

the beginning.

Initialize the tire pressure warning
system. (



P.401)

When registering ID codes

ID code registration is performed while

driving at a vehicle speed of approxi-

mately 40 km/h (25 mph) or more.

Before performing ID code registration,

make sure that no wheels with tire pres-

sure warning valve and transmitters

installed are near the vehicle.

Make sure to initialize the tire pressure

warning system after registering the ID

codes. If the system is initialized before

registering the ID codes, the initialized

values will be invalid.

ID codes can be registered by yourself,

but depending on the driving conditions

and driving environment, registration

may take some time to complete.

Registering ID codes

404

7-3. Do-it-yourself maintenance

Canceling ID code registration

To cancel ID code registration after it has

been started, turn the power switch off

before driving the vehicle. If the vehicle is

driven after ID code registration is

started, to cancel registration, perform

the ID code registration start procedure

again and turn the power switch off

before driving.

If ID code registration has been can-

celed, the tire pressure warning light will

blink for approximately 1 minute when the

power switch is turned to ON and then

illuminate. The tire pressure warning sys-

tem will be operational when the tire

pressure warning light turns off.

If the warning light does not turn off even

after several minutes have elapsed, ID

code registration may not have been

canceled correctly. To cancel registra-

tion, perform the ID code registration

start procedure again and then turn the

power switch off before driving.

If ID codes are not registered properly

In the following situations, ID code regis-

tration may take longer than usual to be

completed or may not be possible. Nor-

mally, registration completes within

approximately 30 minutes.

• Vehicle is not parked for approximately

20 minutes or more before driving

• Vehicle is not driven at approximately 40

km/h (25 mph) or more

• Vehicle is driven on unpaved roads

• Vehicle is driven near other vehicles and

system cannot recognize tire pressure

warning valves and transmitters of your

vehicle over those of other vehicles

• Wheel with tire pressure warning valve

and transmitter installed is inside or near

the vehicle

If registration does not complete after driv-
ing for 1 hour or more, perform the ID code
registration procedure again from the
beginning.

If the vehicle is reversed during registra-

tion, the data up to that point is reset, so

perform the registration procedure again

from the beginning.

In the following situations, ID code regis-

tration will not be started or was not com-

pleted properly and the system will not

operate properly. Perform the ID code

registration procedure again.

• If, when attempting to start ID code regis-

tration, the tire pressure warning light

does not blink slowly 3 times.

• If, when the vehicle has been driven for

about 20 minutes after performing ID

code registration, the tire pressure warn-

ing light blinks for approximately 1 minute

and then illuminates.

If ID code registration cannot be com-

pleted after performing the above proce-

dure, contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

405

7-3. Do-it-yourself maintenance

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

Stop the vehicle in a safe place on a
hard, flat surface.



Set the parking brake.



Shift the shift position to P.



Turn off the intrusion sensor and tilt
sensor (if equipped) (



P.74)



Stop the EV system.

Tools

As your vehicle is equipped with an emer-

gency tire puncture repair kit, the following

tools for replacing a tire are not included

with your vehicle. They can be purchased at

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

Wheel nut wrench

Jack

Jack handle

Replacing the tire

When raising your vehicle with a
jack, position the jack correctly.
Improper placement may damage
your vehicle or cause injury.
If necessary tire replacement
seems difficult to perform, contact
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer.

Before jacking up the vehicle

406

7-3. Do-it-yourself maintenance

Towing eyelet

Jack

/Jack handle

/Wheel nut wrench

: They can be purchased at any authorized Lexus retailer or Lexus authorized repairer, or

any reliable repairer.

Location of the tools

A
B

WARNING

Using the tire jack

Observe the following precautions.
Improper use of the tire jack may cause

the vehicle to suddenly fall off the jack,

leading to death or serious injury.

Do not use the tire jack for any pur-

pose other than replacing tires or

installing and removing tire chains.

Do not use other tire jacks for replac-

ing tires on this vehicle.

Put the jack properly in its jack point.

Do not put any part of your body under

the vehicle while it is supported by the

jack.

Do not start the EV system or drive the

vehicle while the vehicle is supported

by the jack.

Do not raise the vehicle while some-

one is inside.

When raising the vehicle, do not put an

object on or under the jack.

Do not raise the vehicle to a height

greater than that required to replace

the tire.

Use a jack stand if it is necessary to get

under the vehicle.

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

407

7-3. Do-it-yourself maintenance

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Chock the tires.

Slightly loosen the wheel nuts (one
turn).

Turn the tire jack portion

hand until the notch of the jack is in
contact with the jack point.

The jack point guides are located under

the rocker panel. They indicate the jack

point positions.

Install the wheel nut wrench in jack
handle.

Raise the vehicle until the tire is
slightly raised off the ground.

Replacing a flat tire

Tire

Wheel chock posi-

tions

Front left-hand

Behind the rear
right-hand side tire

Front right-hand

Behind the rear left-
hand side tire

Rear left-hand

In front of the front
right-hand side tire

Rear right-hand

In front of the front
left-hand side tire

408

7-3. Do-it-yourself maintenance

Remove all the wheel nuts and the
tire.

When resting the tire on the ground, place

the tire so that the wheel design faces up to

avoid scratching the wheel surface.

WARNING

Replacing a flat tire

Do not touch the disc wheels or the

area around the brakes immediately

after the vehicle has been driven.

After the vehicle has been driven the

disc wheels and the area around the

brakes will be extremely hot. Touching

these areas with hands, feet or other

body parts while changing a tire, etc.

may result in burns.

Failure to follow these precautions

could cause the wheel nuts to loosen

and the tire to fall off, resulting in death

or serious injury.

• Never use oil or grease on the wheel

bolts or wheel nuts.

Oil and grease may cause the wheel

nuts to be excessively tightened, lead-

ing to bolt or disc wheel damage. In

addition, the oil or grease can cause

the wheel nuts to loosen and the wheel

may fall off, causing a serious accident.

Remove any oil or grease from the

wheel bolts or wheel nuts.

• Have the wheel nuts tightened with a

torque wrench to 103 N•m (10.5

kgf•m, 76 ft•lbf) as soon as possible

after changing wheels.

• When installing a tire, only use wheel

nuts that have been specifically

designed for that wheel.

• If there are any cracks or deformations

in the bolt screws, nut threads or bolt

holes of the wheel, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

• Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

Replacing a flat tire for vehicles with

power back door

In cases such as when replacing tires,

make sure to cancel the power back

door system (



P.193). Failure to do so

may cause the back door to operate

unintentionally if the power back door

switch is accidentally touched, resulting

in hands and fingers being caught and

injured.

NOTICE

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps



P.400

409

7-3. Do-it-yourself maintenance

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Remove any dirt or foreign matter
from the wheel contact surface.

If foreign matter is on the wheel contact

surface, the wheel nuts may loosen while

the vehicle is in motion, causing the tire to

come off.

Install the tire and loosely tighten
each wheel nut by hand by approxi-
mately the same amount.

Turn the wheel nuts until the washers come

into contact with the disc wheel.

Disc wheel

Washer

Lower the vehicle.

Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.

Tightening torque:

103 N•m (10.5 kgf•m, 76 ft•lbf)

Stow all the tools.

Installing the tire

A
B

410

7-3. Do-it-yourself maintenance

Effects of incorrect tire inflation pres-

sure

Driving with incorrect tire inflation pressure

may result in the following:

Reduced electricity consumption effi-

ciency

Reduced driving comfort and poor han-

dling

Reduced tire life due to wear

Reduced safety

Damage to the drive train

If a tire needs frequent inflating, have it

checked by any authorized Lexus retailer

or Lexus authorized repairer, or any reli-

able repairer.

Instructions for checking tire inflation

pressure

When checking tire inflation pressure,

observe the following:

Check only when the tires are cold.

If your vehicle has been parked for at

least 3 hours or has not been driven for

more than 1.5 km or 1 mile, you will get an

accurate cold tire inflation pressure read-

ing.

Always use a tire pressure gauge.

It is difficult to judge if a tire is properly

inflated based only on its appearance.

It is normal for the tire inflation pressure

to be higher after driving as heat is gener-

ated in the tire. Do not reduce tire infla-

tion pressure after driving.

Passengers and luggage weight should

be placed so that the vehicle is balanced.

Tire inflation pressure

Make sure to maintain proper tire
inflation pressure. Tire inflation
pressure should be checked at
least once per month. However,
Lexus recommends that tire infla-
tion pressure be checked once
every two weeks.

WARNING

Proper inflation is critical to save tire

performance

Keep your tires properly inflated.

If the tires are not properly inflated, the

following conditions may occur which

could lead to an accident resulting in

death or serious injury:

Excessive wear

Uneven wear

Poor handling

Possibility of blowouts resulting from

overheated tires

Air leaking from between tire and

wheel

Wheel deformation and/or tire dam-

age

Greater possibility of tire damage

while driving (due to road hazards,

expansion joints, sharp edges in the

road, etc.)

NOTICE

When inspecting and adjusting tire

inflation pressure

Be sure to put the tire valve caps back

on.

If a valve cap is not installed, dirt or mois-

ture may get into the valve and cause an

air leak, resulting in decreased tire infla-

tion pressure.

411

7-3. Do-it-yourself maintenance

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When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset

Replacement wheels are available at
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

: Conventionally referred to as offset.

Lexus does not recommend using the
following:



Wheels of different sizes or types



Used wheels



Bent wheels that have been
straightened

When replacing wheels

The wheels of your vehicle are equipped

with tire pressure warning valves and trans-

mitters that allow the tire pressure warning

system to provide advance warning in the

event of a loss in tire inflation pressure.

Whenever wheels are replaced, tire pres-

sure warning valves and transmitters must

be installed. (



P.400)



Use only Lexus wheel nuts and
wrenches designed for use with
your aluminum wheels.



When rotating, repairing or chang-

Wheels

If a wheel is bent, cracked or heav-
ily corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.

Wheel selection

WARNING

When replacing wheels

Do not use wheels that are a different

size from those recommended in the

Owner’s Manual, as this may result in a

loss of handling control.

Never use an inner tube in a leaking

wheel which is designed for a tubeless

tire. Doing so may result in an acci-

dent, causing death or serious injury.

Use of defective wheels prohibited

Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air

during driving, possibly causing an acci-

dent.

NOTICE

Replacing tire pressure warning

valves and transmitters

Because tire repair or replacement

may affect the tire pressure warning

valves and transmitters, make sure to

have tires serviced by any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer or

other qualified service shop. In addi-

tion, make sure to purchase your tire

pressure warning valves and transmit-

ters at any authorized Lexus retailer or

Lexus authorized repairer, or any reli-

able repairer.

Ensure that only genuine Lexus wheels

are used on your vehicle.

Tire pressure warning valves and

transmitters may not work properly

with non-genuine wheels.

Aluminum wheel precautions

412

7-3. Do-it-yourself maintenance

ing your tires, check that the wheel
nuts are still tight after driving 1600
km (1000 miles).



Be careful not to damage the alumi-
num wheels when using tire chains.



Use only Lexus genuine balance
weights or equivalent and a plastic
or rubber hammer when balancing
your wheels.

Turn the power switch off.

Confirm that the charging connector is not

connected. Also, do not use the Remote

Air Conditioning System during the proce-

dure.

Open the front passenger’s door.

By keeping the door open, unexpected

operation of the Remote Air Conditioning

System can be prevent. (



P.355)

Open the glove box. Remove the
partition. (



P.365)

Remove the panel.

Air conditioning filter

The air conditioning filter must be
changed regularly to maintain air
conditioning efficiency.

Removing the air conditioning
filter

Lexus UX 300e (2023 year). Manual in english - page 12