Lexus LS500h (2023 year). Manual in english

408

6-3. Do-it-yourself maintenance

Tire inflation pres-
sure (



P.432)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(



P.417)

• Water or washer

fluid containing anti-
freeze (for winter
use)

• Funnel (used only for

adding water or
washer fluid)

WARNING

The engine 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 engine com-

partment

●

Make sure that the “ACCESSORY” or

“IGNITION ON” on the multi-infor-

mation display and the “READY” indi-

cator are both off.

●

Keep hands, clothing and tools away

from the moving fan and engine drive

belt.

●

Be careful not to touch the engine,

power control unit, 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. Fuel fumes are

flammable.

Items

Parts and tools

■

When working near the electric cool-

ing fan or radiator grille

Be sure the power switch is off.

With the power switch in 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.416)

■

Safety glasses

Wear safety glasses to prevent flying or

falling material, fluid spray, etc. from get-

ting in your eyes.

NOTICE

■

If you remove the air cleaner filter

Driving with the air cleaner filter

removed may cause excessive engine

wear due to dirt in the air.

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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.

■

Front



2WD models

Hood

Opening the hood

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.

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

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6-3. Do-it-yourself maintenance

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Engine oil level dipstick (



P.413)

Power control unit coolant reservoir (



P.415)

Engine coolant reservoir (



P.415)

Engine oil filler cap (



P.414)

Brake fluid reservoir (



P.416)

Fuse boxes (



P.441)

Washer fluid tank (vehicles without Advanced Drive) (



P.417)

Washer fluid tank (vehicles with Advanced Drive) (



P.417)

Engine coolant radiator (



P.416)

Power control unit coolant radiator (



P.416)

Electric cooling fan
Condenser (



P.416)

■

12-volt battery



P.418

Engine compartment

Components

A
B
C
D

E
F

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■

Removing the engine cover

Push the tab in and open the engine
compartment cover.

Remove the engine cover.

■

Installing the engine cover

Install the engine cover.

Install the engine compartment
cover.

With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.

■

Checking the engine oil

Park the vehicle on level ground.
After warming up the engine and
turning off the hybrid system, wait
more than 5 minutes for the oil to
drain back into the bottom of the
engine.

Holding a rag under the end, pull
the dipstick out.

Wipe the dipstick clean.

Reinsert the dipstick fully.

Engine cover

NOTICE

■

Checking the engine cover after

installation

Make sure that the cover is securely

installed in its original position.

Checking and adding the engine
oil

414

6-3. Do-it-yourself maintenance

Holding a rag under the end, pull
the dipstick out and check the oil
level.

Low
Normal
Excessive

The shape of the dipstick may differ

depending on the type of vehicle or

engine.

Wipe the dipstick and reinsert it
fully.

■

Checking the oil type and prepar-
ing the item needed

Make sure to check the oil type and
prepare the items needed before add-
ing oil.



Engine oil selection



P.492



Oil quantity (Low



Full)

1.6 qt. (1.5 L, 1.3 Imp. qt.)



Item
Clean funnel

■

Adding engine oil

If the oil level is below or near the low
level mark, add engine oil of the same
type as that already in the engine.

Remove the oil filler cap by turning
it counterclockwise.

Add engine oil slowly, checking the
dipstick.

Install the oil filler cap by turning it
clockwise.

■

Engine oil consumption

A certain amount of engine oil will be con-

sumed while driving. In the following situa-

tions, oil consumption may increase, and

engine oil may need to be refilled in

between oil maintenance intervals.

●

When the engine is new, for example

directly after purchasing the vehicle or

after replacing the engine

●

If low quality oil or oil of an inappropriate

viscosity is used

●

When driving at high engine speeds or

with a heavy load, or when driving while

accelerating or decelerating frequently

●

When leaving the engine idling for a long

time, or when driving frequently through

heavy traffic

■

After changing the engine oil

The engine oil maintenance data should be

reset. Perform the following procedures:

Press

of the meter control

switch to select

Press

to select “Vehicle Set-

tings” and then press

Press

to select “Oil Mainte-

nance” and then press

A
B
C

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Press

to select “Yes” and

then press

A message will be displayed on the

multi-information display when the reset

procedure has been completed.

■

Engine coolant reservoir

The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine 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. (



P.483)

■

Power control unit coolant reser-
voir

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

Reservoir cap
“F” line
“L” line

WARNING

■

Used engine oil

●

Used engine oil contains potentially

harmful contaminants which may

cause skin disorders such as inflamma-

tion and skin cancer, so care should be

taken to avoid prolonged and

repeated contact. To remove used

engine oil from your skin, wash thor-

oughly with soap and water.

●

Dispose of used oil and filters only in a

safe and acceptable manner. Do not

dispose of used oil and filters in house-

hold trash, in sewers or onto the

ground.

Call your Lexus dealer, service station

or auto parts store for information

concerning recycling or disposal.

●

Do not leave used engine oil within the

reach of children.

NOTICE

■

To prevent serious engine damage

Check the oil level on a regular basis.

■

When replacing the engine oil

●

Be careful not to spill engine oil on the

vehicle components.

●

Avoid overfilling, or the engine could

be damaged.

●

Check the oil level on the dipstick

every time you refill the vehicle.

●

Be sure the engine oil filler cap is prop-

erly tightened.

Checking the coolant

416

6-3. Do-it-yourself maintenance

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



P.483)

■

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.
U.S.A.:
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized

water. (Minimum temperature: -31°F

[-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mix-

ture of 55% coolant and 45% deionized

water. (Minimum temperature: -44°F

[-42°C])
For more details about coolant, contact

your Lexus dealer.

■

If the coolant level drops within a short

time of replenishing

Visually check the radiator, hoses,

engine/power control unit coolant reservoir

caps, drain cock and water pump.

If you cannot find a leak, have your Lexus

dealer test the cap and check for leaks in

the cooling system.

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 condition,
have your vehicle inspected by your
Lexus dealer.

■

Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.

WARNING

■

When the hybrid system is hot

Do not remove the engine/power control

unit coolant reservoir caps. (



P.486)

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 hybrid system is hot

Do not touch the radiator or condenser

as they may be hot and cause serious

injuries, such as burns.

Checking and adding the brake
fluid

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■

Adding fluid

Make sure to check the fluid type and
prepare the necessary item.



Fluid type

FMVSS No.116 DOT 3 or SAE J1703
brake fluid
FMVSS No.116 DOT 4 or SAE J1704
brake fluid



Item

Clean funnel

■

Brake fluid can absorb moisture from

the air

Excess moisture in the brake fluid can cause

a dangerous loss of braking efficiency. Use

only newly opened brake fluid.

If any washer does not work or the
warning message appears on the
multi-information display, the washer
tank may be empty. Add washer fluid.



vehicles without Advanced Drive



vehicles with Advanced Drive

WARNING

■

When filling the reservoir

Take care as brake fluid can harm your

hands and eyes and damage painted sur-

faces.

If fluid gets on your hands or in your eyes,

flush the affected area with clean water

immediately.

If you still experience discomfort, see a

doctor.

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 out

or when the fluid level in the accumulator

is high.

If the reservoir needs frequent refilling,

there may be a serious problem.

Adding the washer fluid

418

6-3. Do-it-yourself maintenance

The 12-volt battery is located in the
trunk under the luggage mat.

Removing the luggage mat:



P.376

■

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 discon-

nect the ground cable.

●

Make sure the charger is off when con-

necting and disconnecting the charger

cables to the 12-volt battery.

■

After recharging/reconnecting the

12-volt battery

●

Unlocking the doors using the smart

access system with push-button start may

not be possible immediately after recon-

necting the 12-volt battery. If this hap-

pens, use the wireless remote control or

the mechanical key to lock/unlock the

doors.

●

Start the hybrid system with the power

switch in ACCESSORY mode. The

hybrid system may not start with the

power switch turned off. However, the

hybrid system will operate normally from

the second attempt.

●

The power switch mode is recorded by

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

WARNING

■

When adding washer fluid

Do not add washer fluid when the hybrid

system is hot or operating as washer fluid

contains alcohol and may catch fire if

spilled on the engine, etc.

NOTICE

■

Do not use any fluid other than

washer fluid

Do not use soapy water or engine anti-

freeze 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.

12-volt battery

Location

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nected, 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 discharge is unknown.

If the system will not start even after multiple

attempts, contact your Lexus dealer.

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

WARNING

■

Chemicals in the 12-volt battery

The 12-volt battery contains poisonous

and corrosive sulfuric acid and may pro-

duce hydrogen gas which is flammable

and explosive. To reduce the risk of death

or serious injury, take the following pre-

cautions 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 bat-

tery 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 replacing the 12-volt battery

Use a 12-volt battery designed for this

vehicle. Failure to do so may cause gas

(hydrogen) to enter the passenger com-

partment, causing a fire or explosion.

For replacement of the 12-volt battery,

contact your Lexus dealer.

NOTICE

■

When recharging the 12-volt battery

Never recharge the 12-volt battery while

the hybrid system is operating. Also, be

sure all accessories are turned off.

Exterior

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■

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 with your Lexus

dealer.

■

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.

■

Maximum load of tire

Check that the maximum load of the

replacement tire is greater than 1/2 of the

Gross Axle Weight Ratings (GAWR) of

either the front axle or the rear axle, which-

ever is greater.
For the GAWR, see the Certification Label.

For the maximum load of the tire, see the

load limit at maximum cold tire inflation

pressure mentioned on the sidewall of the

tire. (



P.500)

■

Tire types

●

Summer tires

Summer tires are high-speed performance
tires best suited to highway driving under
dry conditions. Since summer tires do not
have the same traction performance as
snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For
driving on snow-covered roads or icy

roads, the use of snow tires is recom-
mended. When installing snow tires, be
sure to replace all four tires.

●

All season tires

All season tires are designed to provide
better traction in snow and to be adequate
for driving in most winter conditions as well
as for use year-round. All season tires,
however, do not have adequate traction
performance compared with snow tires in
heavy or loose snow. Also, all season tires
fall short in acceleration and handling per-
formance compared with summer tires in
highway driving.

●

Snow tires

For driving on snow-covered roads or icy
roads, we recommend using snow tires. If
you need snow tires, select tires of the
same size, construction and load capacity
as the originally installed tires. Since your
vehicle has radial tires as original equip-
ment, make sure your snow tires also have
radial construction. Do not install studded
tires without first checking local regula-
tions for possible restrictions. Snow tires
should be installed on all wheels.
(



P.343)

■

If the tread on snow tires wears down

below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is

lost.

WARNING

■

When inspecting or replacing tires

Observe the following precautions to

prevent accidents.

Failure to do so may cause damage to

parts of the drive train as well as danger-

ous handling characteristics, which may

lead to an accident resulting in death or

serious injury.

422

6-3. Do-it-yourself maintenance

Rotate the tires in the order shown.

To equalize tire wear and extend tire life,
Lexus recommends that tire rotation is car-

ried out at the same interval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.

A run-flat tire has a

mark on the side wall.



For XXX/XXRXX size tires

When run-flat tires are installed, the
vehicle can be driven for a maximum of
50 miles (80 km) at a speed below 50
mph (80 km/h) after any tire goes flat.
(However, the vehicle speed may not
increase to near 50 mph [80 km/h]
depending on weather or driving con-
ditions.)

Make sure to replace the flat tire before the
vehicle has been driven for near 50 miles
(80 km). Also, do not use a repaired tire.



For XXX/XXRFXX size tires

When run-flat tires are installed, the
vehicle can be driven for a maximum of
100 miles (160 km) at a speed below
50 mph (80 km/h) after any tire goes
flat. (However, the vehicle speed may
not increase to near 50 mph [80
km/h] depending on weather or driv-
ing conditions.)

Make sure to replace the flat tire before the
vehicle has been driven for near 100 miles
(160 km). Also, do not use a repaired tire.

■

Run-flat tires

●

The run-flat tires are for only this vehicle.

Do not use the tires on other vehicles.

●

Do not mix run-flat tires and normal tires.

●

If non-genuine Lexus wheels are used, it

WARNING

●

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.

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.

Tire rotation

Run-flat tires

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may be impossible to sufficiently demon-

strate the performance of run-flat tires.

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.



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



P.84)



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



P.462)

■

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 mode. It may also

take a few minutes to display the tire infla-

tion pressure after inflation pressure has

been adjusted.

●

Tire inflation pressure changes with tem-

perature. The displayed values may also

be different 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.

• If a tire has been replaced with a tire that

is not an OE (Original Equipment) tire.

• If a tire has been replaced with a tire that

is not of the specified size.

• If tire chains, etc. are installed.

• An auxiliary-supported run-flat tire is

equipped.

• 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 much higher

than the specified level.

• If wheels not equipped with tire pressure

warning valves and transmitter 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.

• When driving near a TV tower, electric

power plant, gas station, radio station,

large display, airport or other facility that

generates strong radio waves or electri-

cal 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,

Tire pressure warning system

424

6-3. Do-it-yourself maintenance

the display may be corrected by changing

the location of the vehicle as the radio wave

conditions may change.

●

When the vehicle is stopped, the time

taken for the warning to start or turn off

may be longer.

●

When the inflation pressure of a tire

drops rapidly, for example when a tire has

burst, the warning may not operate.

■

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning

system will change in accordance with driv-

ing conditions. 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 initial-

ized.

When replacing the tires or wheels, the
tire pressure warning valve and trans-
mitters must be installed to the wheels
which will be installed to the vehicle.
When new tire pressure warning
valves and transmitters are installed,
new ID codes must be registered in the
tire pressure warning computer and
the tire pressure warning system must
be initialized. (



P.426)

■

Replacing tires and wheels

If the ID codes of the tire pressure warning

valve and transmitters are not registered,

the tire pressure warning system will not

work properly. In this case, after driving for

about 20 minutes, the tire pressure warning

light will blink for approximately 1 minute

and then illuminate to indicate a system

malfunction.

■

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



When the tire inflation pressure is
changed such as when changing
traveling speed or load weight.



When the tire inflation pressure is
changed such as when the tire size
is changed.



When rotating the tires.



After performing the transmitter ID
code registration procedure.
(



P.426)

When the tire pressure warning system
is initialized, the current tire inflation
pressure is set as the benchmark pres-
sure.

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 your

Lexus dealer as the tire pressure warn-

ing valves and transmitters may be

damaged if not handled correctly.

●

Make sure to install the tire valve caps.

If the tire valve caps are not installed,

water may enter the valves of the tire

pressure warning valve and transmit-

ters and the valves may become stuck.

●

When replacing tire valve caps, do not

use tire valve caps other than those

specified. The cap may become stuck.

Initializing the tire pressure
warning system

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■

How to initialize the tire pressure
warning system

Park the vehicle in a safe place, turn
the power switch off and wait 20
minutes or more.

The initialization procedure cannot be

started while the vehicle is moving.

Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure 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 hybrid system.

Press

of the meter con-

trol switch to select

Press

to select “Vehicle

Settings” and then press

Press

to select “TPWS”

and then press

Press

to select “Set

Pressure”. Then press and hold

until the tire pressure warning light
blinks 3 times.

Then a message will be displayed on the

multi-information display.
“---” will be displayed on the multi-informa-

tion display for the inflation pressure of

each tire while initialization is being per-

formed.

Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.

Initialization is complete when the position

of each tire is determined and the inflation

pressure of each tire is displayed on the

multi-information display.
Initialization may take longer than normal

to complete if the vehicle speed cannot be

maintained at approximately 25 mph (40

km/h) or more. If initialization cannot be

completed after driving for 1 hour or more,

park the vehicle in a safe place, turn the

power switch off and wait 20 minutes or

more before performing the driving proce-

dure again. (



P.426)

■

Initialization procedure

●

Make sure to perform the initialization

procedure after adjusting the tire inflation

pressure.

Also, make sure the tires are cold before

performing the initialization procedure or

adjusting the tire inflation pressure.

●

If the power switch is turned off during

initialization, it is not necessary to restart

the initialization procedure from the

beginning as it will begin automatically

when the power switch is turned back to

ON mode.

●

If initialization has accidentally been

started when it is not necessary, adjust

the tire inflation pressure to the specified

level when the tires are cold and then

perform the initialization procedure

again.

426

6-3. Do-it-yourself maintenance

●

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

pressure 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. (Usually,

the vehicle will need to be driven for

approximately 10 to 30 minutes to com-

plete initialization.) If initialization is not

complete after driving approximately 30

minutes, continue driving for a while.

• If the vehicle is driven on an unpaved

road, it may take longer to complete ini-

tialization.

• If the vehicle is backed up while perform-

ing initialization, data collected during ini-

tialization will be cleared and it will take

longer than normal to complete.

• If the vehicle is driven in heavy traffic or

another situation where other vehicles

are driven close by, it may take time for

the system to recognize the tire pressure

warning valve and transmitters of your

vehicle over those of other vehicles.

If initialization is not complete after driving

for approximately 1 hour, park the vehicle in

a safe place for approximately 20 minutes

and then drive the vehicle again.

●

In the following situations, initialization

will not be started or was not completed

properly and the system will not operate

properly. Perform the initialization proce-

dure 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 ini-

tialization, the tire pressure warning light

blinks for approximately 1 minute and

then illuminates.

●

If initialization cannot be completed after

performing the above procedure, con-

tact your Lexus dealer.

Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary
to register the ID codes.
The ID codes can be registered on

of the multi-information display.

Park the vehicle in a safe place, turn
the power switch off, wait 20 min-
utes or more, and then start the
hybird system.

Press

of the meter con-

trol switch to select

Press

to select “Vehicle

Settings” and then press

Press

to select “TPWS”

and then press

Press

to select “Change

Wheel Set”. Then press and hold

until the tire pressure warning

light blinks slowly 3 times.

Then a message will be displayed on the

multi-information display.

WARNING

■

When initializing the tire pressure

warning system

Do not initialize the tire pressure warning

system without first adjusting the tire

inflation pressure to the specified level.

Otherwise, 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 normal.

Registering ID codes

427

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When registration is being performed, the

tire pressure warning light will blink for

approximately 1 minute then illuminate and

“---” will be displayed for the inflation pres-

sure of each tire on the multi-information

display.

Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 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.
Registration may take longer than normal

to complete if the vehicle speed cannot be

maintained at approximately 25 mph (40

km/h) or more. If registration cannot be

completed after driving for 1 hour or more,

perform the registration procedure again

from the beginning. (



P.427)

After registering the ID codes, make sure

to initialize the tire pressure warning sys-

tem. (



P.425)

■

When registering ID codes

●

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.

●

As the tires will be warm when registra-

tion is completed, make sure to allow the

tires to cool before performing initializa-

tion.

■

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 regis-

tration 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 canceled,

the tire pressure warning light will blink

for approximately 1 minute when the

power switch is turned to ON mode and

then illuminate. The tire pressure warning

system 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 can-

celled correctly. To cancel registration,

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. (Usu-

ally, the vehicle will need to be driven for

approximately 10 to 30 minutes to com-

plete ID code registration.)

If ID code registration is not complete

after driving for approximately 30 min-

utes, continue driving for a while.

• If the vehicle is driven on an unpaved

road, it may take longer than normal to

complete registration.

• If the vehicle is backed up while perform-

ing registration, data collected during

registration will be cleared, and it will take

longer than normal to complete.

• If the vehicle is driven in heavy traffic or

another situation where other vehicles

are driven close by, it may take time for

the system to recognize the tire pressure

warning valve and transmitters of your

vehicle over those of other vehicles.

• If a wheel with a tire pressure warning

valve and transmitter installed is inside or

near the vehicle, registration of the ID

codes for the installed wheels may not be

428

6-3. Do-it-yourself maintenance

possible.

If ID registration is not complete after driv-

ing for approximately 1 hour, park the vehi-

cle in a safe place for approximately 20

minutes and then perform the ID code reg-

istration procedure again.

●

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 your Lexus dealer.



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



Set the parking brake.



Shift the shift position to P.



Disabling the height control.
(



P.336)



Stop the hybrid system.

■

Jack and tools

As your vehicle is equipped with run-flat

tires, the following tools for replacing a tire

are not included with your vehicle. They can

be purchased at your Lexus dealer.

●

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
your Lexus dealer.

Before jacking up the vehicle

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.

429

6-3. Do-it-yourself maintenance

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Chock the tires.

Slightly loosen the wheel nuts (one
turn).

Turn the tire jack portion by
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

WARNING

●

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 hybrid system or drive

the vehicle while the vehicle is sup-

ported 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.

●

Make sure to disable all functions of

the vehicle height control of the elec-

tronically modulated air suspension

and then stopping the hybrid system.

(



P.336)

●

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

■

Replacing a flat tire for vehicles with

power trunk opener and closer

In cases such as when replacing tires,

make sure to turn off the trunk opener

main switch (



P.113). Failure to do so

may cause the trunk lid to operate unin-

tentionally if the power trunk opener and

closer switch is accidentally touched,

resulting in hands and fingers being

caught and injured.

Removing a tire

Tire

Wheel chock posi-

tions

Front left-hand side

Behind the rear
right-hand side tire

Front right-hand
side

Behind the rear
left-hand side tire

Rear left-hand side

In front of the front
right-hand side tire

Rear right-hand side

In front of the front
left-hand side tire

430

6-3. Do-it-yourself maintenance

point positions.

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

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.

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

WARNING

■

Replacing a 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.

Installing the tire

431

6-3. Do-it-yourself maintenance

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Lower the vehicle.

Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.
Tightening torque:
103 ft•lbf (140 N•m, 14.3 kgf•m)

WARNING

■

When installing the tire

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 ft•lbf (140 N•m,

14.3 kgf•m) as soon as possible after

changing wheels.

●

Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

●

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 your Lexus dealer.

NOTICE

■

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps



P.424

432

6-3. Do-it-yourself maintenance

The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(



P.496)

Tire valve
Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pressure
gauge onto the tire valve.

Read the pressure using the gauge
gradations.

If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.

After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.

Put the tire valve cap back on.

■

Tire inflation pressure check interval

You should check tire inflation pressure

every two weeks, or at least once a month.

Do not forget to check the spare.

■

Effects of incorrect tire inflation pres-

sure

Driving with incorrect tire inflation pressure

may result in the following:

●

Reduced fuel economy

●

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 your Lexus dealer.

■

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 mile or 1.5 km, you will get an

accurate cold tire inflation pressure read-

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-
cedure

A
B

433

6-3. Do-it-yourself maintenance

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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 gen-

erated in the tire. Do not reduce tire infla-

tion pressure after driving.

●

Never exceed the vehicle capacity

weight.

Passengers and luggage weight should

be placed so that the vehicle is balanced.

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.

434

6-3. Do-it-yourself maintenance

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
your Lexus dealer.

: 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 straight-
ened

■

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, the tire

pressure warning valves and transmitters

must be installed. (



P.424)



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



When rotating, repairing or chang-
ing your tires, check that the wheel
nuts are still tight after driving 1000

Wheels

If a wheel is bent, cracked or heavily
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 accident,

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 your Lexus

dealer or other qualified service shop.

In addition, make sure to purchase

your tire pressure warning valves and

transmitters at your Lexus dealer.

●

Ensure that only genuine Lexus wheels

are used on your vehicle.

Tire pressure warning valves and trans-

mitters may not work properly with

non-genuine wheels.

Aluminum wheel precautions

435

6-3. Do-it-yourself maintenance

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miles (1600 km).



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.

Open the glove box. Remove the
partition. (



P.373)

Remove the panel.

Unlock the filter cover ( ), pull the
filter cover out of the claws ( ),
and remove the filter cover.

Air conditioning filter

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

Removing the air conditioning
filter

436

6-3. Do-it-yourself maintenance

Remove the filter case.

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 conditioning fil-

ter according to the maintenance schedule.

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 Sup-

plement” or “Scheduled Maintenance”.)

■

If air flow from the vents decreases dra-

matically

The filter may be clogged. Check the filter

and replace if necessary.

■

Air conditioning filter with deodorizing

function

When fragrances are placed in your vehi-

cle, the deodorizing effect may become

significantly weakened in a short period.

When an air conditioning odor comes out

continuously, replace the air conditioning

filter.

■

Rear air conditioning filter (if equipped)

If it is necessary to replace the filter, contact

your Lexus dealer.

NOTICE

■

When using the air conditioning sys-

tem

Make sure that a filter is always installed.

Using the air conditioning system without

a filter may cause damage to the system.

■

To prevent damage to the filter cover

When moving the filter cover in the

direction of arrow to release the fitting,

pay attention not to apply excessive force

to the claws. Otherwise, the claws may

be damaged.

437

6-3. Do-it-yourself maintenance

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■

Scheduled maintenance of the air

intake vent is necessary when

In some situations such as when the vehicle

is used frequently or in heavy traffic or dusty

areas, the air intake vent may need to be

cleaned more regularly.
For details, refer to the “Warranty and Ser-

vice Guide”, “Owner’s Manual Supple-

ment” or “Scheduled Maintenance”.

■

Cleaning the air intake vent

Improper handling of the air intake vent

cover and filter may result in damage to

them. If you have any concerns about clean-

ing the filter, contact your Lexus dealer.

Turn the power switch off.

Remove the air intake vent cover.

Remove the filter from the air intake
vent cover.

If dust has accumulated on the air intake

vent cover, remove the dust with a vacuum

cleaner, etc.

Remove the dust and sand from the
filter.

Using a vacuum cleaner, etc., absorb dust

and sand from the filter by profiling the

nozzle lightly along the fold.

Cleaning the hybrid battery
(traction battery) air intake
vents

To prevent the fuel economy from
being affected, visually inspect the
hybrid battery (traction battery) air
intake vents periodically for clogs.

If it is dusty or clogged or if “Main-
tenance Required for Traction Bat-
tery Cooling Parts See Owner’s
Manual” is displayed on the
multi-information display, clean the
air intake vent using the following
procedures:

NOTICE

■

If “Maintenance Required for Trac-

tion Battery Cooling Parts See

Owner’s Manual” is displayed on the

multi-information display

Clean the air intake vent immediately.

If the vehicle is continuously driven with

the warning message displayed, it may

cause a malfunction or output restriction

of the hybrid battery (traction battery).

Cleaning procedure

438

6-3. Do-it-yourself maintenance

Hold the filter to the light and check
if it is not clogged.

If the dust or sand cannot be removed

completely, contact your Lexus dealer.

Install the filter in its original posi-
tion, and then install the air intake
vent cover.



If “Maintenance Required for Trac-
tion Battery Cooling Parts See
Owner’s Manual” was displayed on
the multi-information display

Start the hybrid system and check
that the warning message is no lon-
ger displayed.

It may be necessary to drive the vehicle for

approximately 20 minutes before the

warning message is displayed again then

disappears.
If the warning message does not disappear

after some time, have the vehicle inspected

by your Lexus dealer.

■

If the dust or sand on the filter cannot be

removed

It is recommended to use a vacuum cleaner

with plastic brushes.

WARNING

■

When cleaning the air intake vent

●

Do not use water or other liquids to

clean the air intake vent. If water is

applied to the hybrid battery (traction

battery) or other components, a mal-

function or fire may occur.

●

Before cleaning the air intake vents,

make sure to turn the power switch off

to stop the hybrid system.

●

Do not put a hand or leg in the air

intake vent. If it is caught in a cooling

fan, or if it touches a high voltage part

that results in an electric shock, death

or serious injuries may result.

NOTICE

■

When cleaning the air intake vent

Do not use an air blow gun, etc.

Dust may be blown out, possibly causing

a malfunction or output restriction of the

hybrid battery (traction battery).

■

To prevent damage to the vehicle

Observe the following precautions:

●

Do not allow liquid or foreign matter to

enter the air intake vent.

●

Make sure to reinstall the filter and

cover to their original positions after

cleaning.

●

Do not install anything to the air intake

vent other than the exclusive filter for

this vehicle or use the vehicle without

the filter installed.

439

6-3. Do-it-yourself maintenance

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■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart access system with push-but-

ton start and wireless remote control will

not function properly.

●

The operational range will be reduced.

■

When the card key battery needs to be

replaced (if equipped)

The battery for the card key is available only

at Lexus dealers. Your Lexus dealer can

replace the battery for you.



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2032

■

Use a CR2032 lithium battery

●

Batteries can be purchased at your Lexus

dealer, local electrical appliance shops or

camera stores.

●

Replace only with the same or equivalent

type recommended by the manufacturer.

●

Dispose of used batteries according to

local laws.

NOTICE

■

To prevent damage to the filter

Observe the following precautions.

If the filter is damaged, have it replaced

with a new filter by your Lexus dealer.

●

Do not use an air blow gun, etc.

●

Do not press hard a vacuum cleaner,

etc. against the filter.

●

Do not use a hard brush, such as a

metal brush.

●

Do not break the fold of the filter.

Electronic key battery

Replace the battery with a new one
if it is depleted.
As the key may be damaged if the
following procedure is not per-
formed properly, it is recom-
mended that key battery
replacement be performed by your
Lexus dealer.

Items to prepare

Lexus LS500h (2023 year). Manual in english - page 13