Lexus IS500 (2024 year). Manual in english - page 9

278

6-1. Maintenance and care

the quality of the vehicle’s interior.



Remove dirt and dust using a vac-
uum cleaner.



Wipe it off with a soft cloth damp-
ened with neutral detergent diluted 
to approximately 1%.



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

It is recommended that regular mainte-
nance should be performed for areas 
that are frequently touched to maintain 
quality.

■

Routine maintenance

This maintenance is most effective if 
performed regularly (around once per 
month).

1

Soak a cloth in lukewarm water 
(approximately 104°F [40°C]), 
wring it out thoroughly and then 
wipe the entire body.

Wipe carefully so that the pile is not dishev-

eled. Be sure to prepare a clean cloth. 

Once you have wiped the part with the 

cloth, rinse it until it is completely clean 

before using the cloth again.

2

Once it has dried, use a lint brush 
or the like to comb the pile.

■

When cleaning the artificial 
leather (Ultrasuede

®

)



If liquid is spilled onto the surface, 
apply tissue paper or the like to 
absorb the liquid.



If any substance such as mud or cof-
fee dries and becomes stuck to the 
surface, use a lint brush or the like to 
lightly brush the dirty area and 
remove the substance. Then, it is 
recommended to clean the dried 
substance from the surface using a 
vacuum cleaner.



For oil-based substances, use a dry 
cloth or tissue paper to wipe off the 
substance as much as possible, 
while being careful not to spread it.

If the substance still cannot be 
removed, use the following procedure 
to remove it.

1

Liquid substances: Soak a cloth in 
lukewarm water (approximately 
104°F [40°C]), wring it out thor-
oughly and then wipe the dirty area 
from the outside inward.

Wipe carefully so that the pile is not dishev-

eled. Be sure to prepare a clean cloth and 

use the clean portion of it to clean the sur-

face.
Oil-based substances: Dab a cloth soaked 

in benzene, lukewarm water or pure ethyl 

alcohol (for drinking) within the dirty area 

from the outside inward, and then dab a 

dry cloth on the dirty area to absorb the 

substance.

2

If the pile on the surface is dishev-
eled, use a lint brush or the like to 
lightly brush the surface, and then 
allow the surface to dry completely.

Cleaning the synthetic leather 
areas

Cleaning the artificial leather 
(Ultrasuede

®*

) areas (IS500)

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6-1. Maintenance and care

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■

To remove substances adhered to 
the pile

To clean dust or other adhered sub-
stances, use a lint brush or the like to 
lightly brush the area and remove the 
substance. If the substance still cannot 
be removed, use adhesive tape to 
remove it.

*

: Ultrasuede

®

 is a registered trademark 

of Toray Industries, Inc.

NOTICE

■

When driving

Areas that are frequently touched are 

more likely to attract dirt. Ensure that 

your hands are clean before touching 

anything.

■

To prevent damage to artificial 
leather (Ultrasuede

®

)

Observe the following precautions to 

avoid damage to and deterioration of 
artificial leather (Ultrasuede

®

):

●

Do not apply excessive force

●

Do not dig your nails into it

●

Do not rub it with your hands

●

Do not touch it if your hands are dirty

■

When using adhesive tape

If a strong adhesive tape is used, there is 

a possibility that the surface of the carpet 

could be damaged.

280

6-2. Maintenance

6-2.Maintenance

■

Repair and replacement

It is recommended that genuine Lexus parts 

be used for repairs to ensure performance 

of each system. If non-Lexus parts are used 

in replacement or if a repair shop other than 

a Lexus dealer performs repairs, confirm 

the warranty coverage.

■

Allow inspection and repairs to be per-

formed by a Lexus dealer

●

Lexus technicians are well-trained spe-

cialists and are kept up to date with the 

latest service information. They are well 

informed about the operation of all sys-

tems on your vehicle.

●

Keep a copy of the repair order. It proves 

that the maintenance that has been per-

formed is under warranty coverage. If any 

problem should arise while your vehicle is 

under warranty, your Lexus dealer will 

promptly take care of it.

General maintenance should be per-
formed on a daily basis. This can be 
done by yourself or by a Lexus dealer.

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

For details about maintenance items and 
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.

■

Resetting the message indicating main-

tenance is required

After the required maintenance is per-

formed according to the maintenance 

schedule, please reset the message.
To reset the message, follow the procedure 

described below:

1

Press 

 or 

 of the meter control 

switch to select 

.

2

Press 

 or 

 of the meter control 

switch, select the “Vehicle Settings” 

Maintenance requirements

To ensure safe and economical driv-
ing, day-to-day care and regular 
maintenance are essential. It is the 
owner’s responsibility to perform 
regular checks. 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 death or serious injury.

■

Handling of the battery

●

Engine exhaust, some of its constitu-

ents, and a wide variety of automobile 

components contain or emit chemicals 

known to the State of California to 

cause cancer and birth defects and 

other reproductive harm. Work in a 

well ventilated area.

●

Oils, fuels and fluids contained in vehi-

cles as well as waste produced by 

component wear contain or emit 

chemicals known to the State of Cali-

fornia to cause cancer and birth 

defects or other reproductive harm. 

Avoid exposure and wash any affected 

area immediately.

●

Battery posts, terminals and related 

accessories contain lead and lead 

compounds which are known to cause 

brain damage. Wash your hands after 

handling. (



P.297)

General maintenance

Scheduled maintenance

281

6-2. Maintenance

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then “Scheduled Maintenance”. (To 
confirm setting, press 

.)

3

Select the “Yes” and press 

.

4

A message will be displayed on the 

multi-information display when the 

reset procedure has been completed.

You can perform some maintenance 
procedures by yourself.
Please be aware that do-it-yourself 
maintenance may affect warranty cov-
erage.

The use of Lexus repair manuals is recom-
mended.
For details about warranty coverage, refer 
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.

Do-it-yourself maintenance

General maintenance

Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in 
the “Warranty and Service Guide” 
or “Owner’s Manual Supplement”. 
It is recommended that any prob-
lem you notice should be brought to 
the attention of your Lexus dealer 
or qualified service shop for advice.

WARNING

■

If the engine is running

Turn the engine off and ensure that there 

is adequate ventilation before perform-

ing maintenance checks.

Engine compartment

Items

Check points

Battery

Check the connec-
tions. (



P.297)

Brake fluid

Is the brake fluid at the 
correct level? 
(



P.297)

Engine/inter-
cooler coolant

Is the engine/inter-
cooler coolant at the 
correct level? 
(



P.295)

Engine oil

Is the engine oil at the 
correct level? 
(



P.292)

Exhaust system

There should not be 
any fumes or strange 
sounds.

282

6-2. Maintenance

Radiator, con-
denser and inter-
cooler radiator

The radiator and con-
denser should be free 
from foreign objects. 
(



P.297)

Washer fluid

Is there sufficient 
washer fluid? 
(



P.299)

Vehicle interior

Items

Check points

Accelerator 
pedal

• The accelerator 

pedal should move 
smoothly (without 
uneven pedal effort 
or catching).

Automatic trans-
mission “Park” 
mechanism

• When  parked  on  a 

slope and the shift 
lever is in P, is the 
vehicle securely 
stopped?

Brake pedal

• Does the brake 

pedal move 
smoothly?

• Does the brake 

pedal have appro-
priate clearance 
from the floor?

• Does the brake 

pedal have the cor-
rect amount of free 
play?

Items

Check points

Brakes

• The vehicle should 

not pull to one side 
when the brakes are 
applied.

• The  brakes  should 

work effectively.

• The brake pedal 

should not feel 
spongy.

• The brake pedal 

should not get too 
close to the floor 
when the brakes are 
applied.

Head restraints

• Do  the  head 

restraints move 
smoothly and lock 
securely?

Indicators/buzz-
ers

• Do  the  indicators 

and buzzers function 
properly?

Lights

• Do all the lights 

come on?

Parking brake

• Does the parking 

brake operate nor-
mally?

• When parked on a 

slope and the park-
ing brake is on, is the 
vehicle securely 
stopped?

Seat belts

• Do the seat belts 

operate smoothly?

• The seat belts should 

not be damaged.

Items

Check points

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Seats

• Do the seat controls 

operate properly?

Steering wheel

• Does the steering 

wheel rotate 
smoothly?

• Does the steering 

wheel have the cor-
rect amount of free 
play?

• There  should  not  be 

any strange sounds 
coming from the 
steering wheel.

Vehicle exterior

Items

Check points

Doors/trunk

• Do the doors/trunk 

operate smoothly?

Engine hood

• Does  the  engine 

hood lock system 
work properly?

Fluid leaks

• There  should  not  be 

any signs of fluid 
leakage after the 
vehicle has been 
parked.

Items

Check points

Tires

• Is the tire inflation 

pressure correct?

• The tires should not 

be damaged or 
excessively worn.

• Have the tires been 

rotated according to 
the maintenance 
schedule?

• The  wheel  bolts 

should not be loose.

Windshield wip-
ers

• The wiper blades 

should not show any 
signs of cracking, 
splitting, wear, con-
tamination or defor-
mation.

• The wiper blades 

should clear the 
windshield without 
streaking or skip-
ping.

Items

Check points

284

6-2. Maintenance

The OBD system determines that a 
problem exists somewhere in the emis-
sion control system. Your vehicle may 
not pass the I/M test and may need to 
be repaired. Contact your Lexus 
dealer to service the vehicle.



When the battery is disconnected 
or discharged

Readiness codes that are set during ordi-
nary driving are erased.
Also, depending on your driving habits, the 
readiness codes may not be completely 
set.



When the fuel tank cap is loose

The malfunction indicator lamp comes on 
indicating a temporary malfunction and 
your vehicle may not pass the I/M test.

The error code in the OBD system will 
not be cleared unless the vehicle is 
driven 40 or more times.

Contact your Lexus dealer to prepare 
the vehicle for re-testing.

Emission inspection and 
maintenance (I/M) pro-
grams

Some states have vehicle emission 
inspection programs which include 
OBD (On Board Diagnostics) 
checks. The OBD system monitors 
the operation of the emission con-
trol system.

If the malfunction indicator lamp 
comes on

Your vehicle may not pass the 
I/M test in the following situa-
tions:

When the malfunction indicator 
lamp still remains on after sev-
eral driving trips

If your vehicle does not pass the 
I/M test

285

6-3. Do-it-yourself maintenance

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6-3.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

Battery condition 
(



P.297)

• Warm  water
• Baking soda
• Grease
• Conventional 

wrench (for terminal 
clamp bolts)

Brake fluid level 
(



P.297)

• SAE J1703 or 

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

• Rag  or  paper  towel
• Funnel (used only for 

adding brake fluid)

Engine/inter-
cooler coolant 
level (



P.295)

• “Toyota  Super  Long 

Life Coolant” or a 
similar high quality 
ethylene gly-
col-based non-sili-
cate, non-amine, 
non-nitrite and 
non-borate coolant 
with long-life hybrid 
organic acid tech-
nology
For the U.S.A.:
“Toyota Super Long 
Life Coolant” is 
pre-mixed with 50% 
coolant and 50% 
deionized water.
For Canada:
“Toyota Super Long 
Life Coolant” is 
pre-mixed with 55% 
coolant and 45% 
deionized water.

• Funnel  (used  only  for 

adding coolant)

Engine oil level 
(



P.292)

• “Toyota  Genuine 

Motor Oil” or equiv-
alent

• Rag or paper towel
• Funnel  (used  only  for 

adding engine oil)

Fuses (



P.314)

• Fuse  with  same 

amperage rating as 
original

Items

Parts and tools

286

6-3. Do-it-yourself maintenance

Light bulbs 
(



P.317)

• Bulb with same num-

ber and wattage rat-
ing as original

• Phillips-head screw-

driver

• Flathead screw-

driver

• Wrench

Radiator, con-
denser and inter-
cooler radiator 
(



P.297)



Tire inflation pres-
sure (



P.307)

• Tire pressure gauge
• Compressed air 

source

Washer fluid 
(



P.299)

• 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

●

Keep hands, clothing and tools away 

from the moving fan and engine drive 

belt.

●

Be careful not to touch the engine, 

radiator, exhaust manifold, etc. right 

after driving as they may be hot. Oil 

and other fluids may also be hot.

Items

Parts and tools

●

Do not leave anything that may burn 

easily, such as paper and rags, in the 

engine compartment.

●

Do not smoke, cause sparks or expose 

an open flame to fuel or the battery. 

Fuel and battery fumes are flammable.

●

Be extremely cautious when working 

on the battery. It contains poisonous 

and corrosive sulfuric acid.

■

When working near the electric cool-

ing fans or radiator grille

Be sure the engine switch is off.

With the engine switch in IGNITION 

ON mode, the electric cooling fans may 

automatically start to run if the air condi-

tioning is on and/or the coolant tempera-

ture is high. (



P.297)

■

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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Release the lock from the inside of the 
vehicle to open the hood.

1

Pull the hood lock release lever.

The hood will pop up slightly.

2

Pull the auxiliary catch lever to the 
left and lift the hood.

■

If a symbol indicating the hood opens is 

shown on the multi-information display



P.93

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.

288

6-3. Do-it-yourself maintenance

■

Front



2WD models



AWD models

■

Rear



IS350 AWD/IS350 (vehicles with-
out LSD [Limited Slip Differen-
tial])/IS300 AWD/IS300

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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

IS500/IS350 (vehicles with LSD 
[Limited Slip Differential])

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6-3. Do-it-yourself maintenance



IS350 AWD/IS350/IS300 AWD

Fuse boxes (



P.314)

Battery (



P.297)

Engine oil level dipstick (



P.292)

Engine coolant reservoir (



P.295)

Engine oil filler cap (



P.294)

Brake fluid reservoir (



P.297)

Washer fluid tank (



P.299)

Electric cooling fans
Condenser (



P.297)

Radiator (



P.297)

Engine compartment

Components

A
B
C
D

E
F

G

H

I

J

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

IS300

Fuse boxes (



P.314)

Battery (



P.297)

Intercooler
Engine oil level dipstick (



P.292)

Engine oil filler cap (



P.294)

Engine coolant reservoir (



P.295)

Brake fluid reservoir (



P.297)

Washer fluid tank (



P.299)

Electric cooling fans
Condenser (



P.297)

Intercooler radiator (



P.297)

Radiator (



P.297)

Intercooler coolant reservoir (



P.295)

A
B
C
D

E
F

G

H

I

J

K

L

M

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6-3. Do-it-yourself maintenance



IS500

Fuse boxes (



P.314)

Battery (



P.297)

Engine oil level dipstick (



P.292)

Engine coolant reservoir (



P.295)

Engine oil filler cap (



P.294)

Brake fluid reservoir (



P.297)

Washer fluid tank (



P.299)

Electric cooling fans
Condenser (



P.297)

Radiator (



P.297)

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

1

Park the vehicle on level ground. 
After warming up the engine and 
turning it off, wait about 5 minutes 

for the oil to drain back into the bot-
tom of the engine.

2

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

A
B
C
D

E
F

G

H

I

J

Checking the engine oil

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

IS350 AWD/IS350/IS300 AWD



IS300



IS500

3

Wipe the dipstick clean.

4

Reinsert the dipstick fully.

5

Holding a rag under the end, pull 
the dipstick out and check whether 
the oil level is above low level mark.

Low level mark

The shape of the dipstick may differ 

depending on the type of vehicle or 

engine.

6

Wipe the dipstick and reinsert it 
fully.

■

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

■

Engine oil level rise

If the vehicle is repeatedly driven without 

the engine warmed up, moisture caused by 

dew condensation inside the engine or fuel 

which did not burn mixes into the engine oil, 

resulting in a rise in engine oil level. How-

ever, this is not a malfunction.
For example, the engine become difficult to 

A

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6-3. Do-it-yourself maintenance

be warmed up in the following situations.

●

When driving a short distance

●

When driving at a low speed

●

When the outside temperature is low

When checking the engine oil, make sure 

that the engine is warmed up. If the engine 

oil level exceeds the refill upper limit mark, 

contact your Lexus dealer.

■

After changing the engine oil (IS350 

AWD/IS350/IS300 AWD/IS300)

The engine oil maintenance data should be 

reset. Perform the following procedures:

1

Press 

 or 

 of the meter control 

switch to select 

 on the multi-infor-

mation display.

2

Press 

 or 

 of the meter control 

switch, select the “Vehicle Settings” 

then “Oil Maintenance”. (To confirm 
setting, press 

.)

3

Select the “Yes” and press 

.

4

A message will be displayed on the 

multi-information display when the 

reset procedure has been completed.

■

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.371



Oil quantity (Low level mark 



 

Refill upper limit mark)
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.



IS350 AWD/IS350/IS300 AWD



IS300



IS500

1

Remove the oil filler cap by turning 
it counterclockwise.

NOTICE

■

To prevent serious engine damage

Check the oil level on a regular basis.

Adding engine oil

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6-3. Do-it-yourself maintenance

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2

Add engine oil slowly, checking the 
dipstick.

Make sure that the oil level does not 

exceed the refill upper limit mark and is 

between the low level mark and refill upper 

limit mark.

Low level mark
Refill upper limit mark

The shape of the dipstick may differ 
depending on the type of vehicle or 
engine.

3

Install the oil filler cap by turning it 
clockwise.

■

Engine coolant reservoir

The coolant level is satisfactory if it is 
between the “FULL” and “LOW” lines 
on the reservoir when the engine is 
cold.



IS350 AWD/IS350/IS300



IS300

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.

A

B

NOTICE

■

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

296

6-3. Do-it-yourself maintenance



IS500

Reservoir cap
“FULL” line
“LOW” line

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



P.362)

■

Intercooler coolant reservoir 
(IS300)

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.362)

■

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 engine coolant, con-

tact your Lexus dealer.

■

If the coolant level drops within a short 

time of replenishing

Visually check the radiator, hoses, engine 

coolant reservoir cap, 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.

A

B

C

A

B

C

WARNING

■

When the engine is hot

Do not remove the engine coolant reser-

voir cap, intercooler coolant reservoir 

cap (IS300), or coolant inlet cap. 

(



P.364)

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.

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Check the radiator, condenser and 
intercooler radiator (if equipped) and 
clear away any foreign objects.
If any of the above parts are extremely 
dirty or you are not sure of their condi-
tion, 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.

■

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.

Check the battery as follows.

NOTICE

■

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the radiator, con-
denser and intercooler radiator 
(if equipped)

WARNING

■

When the engine is hot

Do not touch the radiator, condenser or 

intercooler radiator (if equipped) as they 

may be hot and cause serious injuries, 

such as burns.

Checking and adding the brake 
fluid

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.

Battery

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6-3. Do-it-yourself maintenance

■

Battery exterior

Make sure that the battery terminals 
are not corroded and that there are no 
loose connections, cracks, or loose 
clamps.

Terminals
Hold-down clamp

■

Before recharging

When recharging, the battery produces 

hydrogen gas which is flammable and 

explosive. Therefore, observe the following 

before recharging:

●

If recharging with the battery installed on 

the vehicle, be sure to disconnect the 

ground cable.

●

Make sure the power switch on the char-

ger is off when connecting and discon-

necting the charger cables to the battery.

■

After recharging/reconnecting the bat-

tery

The engine may not start. Follow the proce-

dure below to initialize the system.

1

Shift the shift lever to P.

2

Open and close any of the doors.

3

Restart the engine.

●

Unlocking the doors using the smart 

access system with push-button start may 

not be possible immediately after recon-

necting the battery. If this happens, use 

the wireless remote control or the 

mechanical key to lock/unlock the doors.

●

Start the engine with the engine switch in 

ACCESSORY mode. The engine may 

not start with the engine switch turned off. 

However, the engine will operate nor-

mally from the second attempt.

●

The engine switch mode is recorded by 

the vehicle. If the battery is disconnected 

and reconnected, the vehicle will return 

the engine switch mode to the status it 

was in before the battery was discon-

nected. Make sure to turn off the engine 

before disconnecting the battery. Take 

extra care when connecting the battery if 

the engine switch mode prior to the bat-

tery being disconnected is unknown.

If the system will not start even after multiple 

attempts, contact your Lexus dealer.

A

B

WARNING

■

Chemicals in the 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 bat-

tery:

●

Do not cause sparks by touching the 

battery terminals with tools.

●

Do not smoke or light a match near the 

battery.

●

Avoid contact with eyes, skin and 

clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when 

working near the battery.

●

Keep children away from the battery.

■

Where to safely charge the battery

Always charge the battery in an open 

area. Do not charge the battery in a 

garage or closed room where there is 

insufficient ventilation.

■

How to recharge the battery

Only perform a slow charge (5 A or 

less). The battery may explode if charged 

at a quicker rate.

299

6-3. Do-it-yourself maintenance

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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.

WARNING

■

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 battery 

fluid

Do not use if there is insufficient fluid in 

the battery. There is a possible danger 

that the battery may explode.

NOTICE

■

When recharging the battery

Never recharge the battery while the 

engine is running. Also, be sure all acces-

sories are turned off.

Adding the washer fluid

WARNING

■

When adding washer fluid

Do not add washer fluid when the engine 

is hot or running 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.

300

6-3. Do-it-yourself maintenance

Check if the treadwear indicators are 
showing on the tires. Also check the 
tires for uneven wear, such as excessive 
wear on one side of the tread.
Check the spare tire condition and 
pressure if not rotated.

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.

■

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.382)

■

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 

Tires

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

Checking tires

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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.235)

■

Low profile tires

Generally, low profile tires will wear more 

rapidly and tire grip performance will be 

reduced on snowy and/or icy roads when 

compared to standard tires. Be sure to use 

snow tires or tire chains* on snowy and/or 

icy roads and drive carefully at a speed 

appropriate for road and weather condi-

tions.

*

: Vehicles with front and rear tires of dif-

fering sizes: Tire chains cannot be 
mounted. Snow tires should be used 
instead.

■

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.

●

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 if your vehicle has a com-

pact spare tire installed.

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.

■

Low profile tires

Low profile tires may cause greater dam-

age than usual to the tire wheel when 

sustaining impact from the road surface. 

Therefore, pay attention to the following:

302

6-3. Do-it-yourself maintenance

Rotate the tires in the order shown.



Vehicles with front and rear tires of 
the same size

To equalize tire wear and extend tire 
life, Lexus recommends that tire rota-
tion is carried out at the same interval 
as tire inspection.
Do not fail to initialize the tire pressure 
warning system after tire rotation.



Vehicles with front and rear tires of 
differing sizes

Tires cannot be rotated.

■

When rotating the tires

Make sure that the engine switch is off. If the 

tires are rotated while the engine switch is in 

IGNITION ON mode, the tire position 

information will not be updated.
If this accidentally occurs, either turn the 

engine switch to off and then to IGNITION 

ON mode, or initialize the system after 

checking that the tire pressure is properly 

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.



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



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



P.337)

NOTICE

●

Be sure to use proper tire inflation 

pressure. If tires are under-inflated, 

they may be damaged more severely.

●

Avoid potholes, uneven pavement, 

curbs and other road hazards. Failure 

to do so may lead to severe tire and 

wheel damage.

■

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

Tire pressure warning system

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■

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 engine 

switch is turned to IGNITION ON mode. 

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 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 extremely 

higher than the specified level.

• If tires not equipped with 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.

• 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, 

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 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.305)

■

Replacing tires and wheels

If the ID code of the tire pressure warning 

valve and transmitter is not registered, the 

tire pressure warning system will not work 

properly. After driving for about 20 min-

utes, the tire pressure warning light blinks 

for 1 minute and stays on to indicate a sys-

Installing tire pressure warning 
valves and transmitters

304

6-3. Do-it-yourself maintenance

tem malfunction.

■

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 
traveling speed or load weight.



When changing the tire size.

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

■

How to initialize the tire pressure 
warning system

1

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

Initialization cannot be performed while 

the vehicle is moving.

2

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.

3

Start the engine. (



P.130)

4

Press and hold the tire pressure 
warning reset switch until the tire 
pressure warning light blinks slowly 
3 times.

Then a message will be displayed on the 

multi-information display.

5

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 

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 a tire valve cap is not installed, water 

may enter the valve and cause it to 

corrode, possibly leading to the valve 

sticking or air to leak from the tire.

●

When replacing tire valve caps, do not 

use tire valve caps other than those 

specified. The cap may become stuck.

■

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 your Lexus 

dealer or other qualified service shop as 

soon as possible. After use of liquid seal-

ant, make sure to replace the tire pres-

sure warning valve and transmitter when 

repairing or replacing the tire.

Initializing the tire pressure 
warning system

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pressure of each tire is displayed on the 

multi-information display.

■

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 you have accidentally turned the engine 

switch off during initialization, it is not 

necessary to press the reset switch again 

as initialization will restart automatically 

when the engine switch has been turned 

to IGNITION ON mode for the next 

time.

●

If you accidentally press the reset switch 

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 

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.

1

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

Registering cannot be performed while the 

vehicle is moving.

WARNING

■

When initializing the tire pressure 

warning system

Do not operate the tire pressure warning 

reset switch 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

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6-3. Do-it-yourself maintenance

2

Start the engine. (



P.130)

3

Press the tire pressure warning 
reset switch 3 times quickly.

The tire pressure warning light will blink 

slowly 3 times.
Sensor registration mode will be entered 

and ID codes registration will begin.
A message will be displayed on the 

multi-information display and “- -” will be 

displayed for the tire inflation pressure of 

each tire.
After this, the tire pressure warning light 

will blink for 1 minute and then illuminate.

4

Wait approximately 2 minutes.

If the ID codes are already registered, the 

tire pressure warning light will turn off.



If the tire pressure warning light 
turns off

5

Initialize the tire pressure warning 
system. (



P.304)



If the tire pressure warning light 
does not turn off

5

Drive at approximately 25 mph 
(40 km/h) or more until the tire 
pressure warning light turns off.

6

Initialize the tire pressure warning 
system. (



P.304)

■

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, press the tire pressure 

warning reset switch 3 times quickly.

●

If ID code registration has been canceled 

, the tire pressure warning light will turn 

off.

●

If the tire pressure warning light dose not 

turn off, ID code registration may not 

have been canceled correctly. To cancel 

registration, press 3 times quickly again 

on the tire pressure warning reset switch. 

Check that the warning light turns off.

■

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 

possible.

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6-3. Do-it-yourself maintenance

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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.

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



P.376)

Tire valve
Tire pressure gauge

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-
cedure

A
B

308

6-3. Do-it-yourself maintenance

1

Remove the tire valve cap.

2

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

3

Read the pressure using the gauge 
gradations.

4

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.

5

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

6

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-

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.)

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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 
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, tire pres-

sure warning valves and transmitters must 

be installed. (



P.303)

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.

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