Lexus RC-F (2022 year). Manual in english

273

6-4. Do-it-yourself maintenance

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Fuse boxes (



P.291)

Battery (



P.276)

Engine oil level dipstick (



P.273)

Engine coolant reservoir (



P.275)

Engine oil filler cap (



P.273)

Washer fluid tank (



P.278)

Electric cooling fans
Condenser (



P.276)

Radiator (



P.276)

For right-hand drive vehicles:
The battery and the fuse box in front of
the battery are located on the opposite
side of the engine compartment.

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

Engine compartment

Components

A
B
C
D

E
F

Checking and adding the engine
oil

274

6-4. Do-it-yourself maintenance

■

Checking the engine oil

Park the vehicle on level ground.
After warming up the engine and
turning it off, wait more than 5 min-
utes 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.

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.348



Oil quantity (Low



Full)

1.5 L (1.6 qt., 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

A
B
C

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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

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

■

Engine coolant reservoir

Reservoir cap
“FULL” line
“LOW” line

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



P.341)

■

Coolant selection

Only use “Toyota Super Long Life Coolant”

or a similar high quality ethylene glycol

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

and non-borate coolant with long-life

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

ture of 50% coolant and 50% deionized

water. (Minimum temperature: -35°C

[-31°F])

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 any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer, 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

A
B
C

276

6-4. Do-it-yourself maintenance

For more details about coolant, contact any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

■

If the coolant level drops within a short

time of replenishing

Visually check the radiators, hoses, engine

coolant reservoir caps, drain cock and

water pump.
If you cannot find a leak, have any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer, test the

cap and check for leaks in the cooling sys-

tem.

Check the radiator and condenser and
clear away any foreign objects.
If either of the above parts is extremely
dirty or you are not sure of their condi-

tion, have your vehicle inspected by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

Check the battery as follows.

■

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

■

Checking battery fluid

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

WARNING

■

When the engine is hot

Do not remove the engine coolant reser-

voir cap. (



P.342)

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 engine is hot

Do not touch the radiator or condenser

as they may be hot and cause serious

injuries, such as burns.

Battery

A
B

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“UPPER LEVEL” line
“LOWER LEVEL” line

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

■

Checking battery condition (vehi-
cles with the battery indicator)

Check the battery condition by indica-
tor color.

Blue: Good condition
Red: Not working properly.
Add distilled water.
White: Charging is necessary.
Have the vehicle inspected by any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

■

Adding distilled water

Remove the vent plug.

Add distilled water.

Low
O.K.

If the “UPPER LEVEL” line cannot be seen,

check the fluid level by looking directly at

the cell.

Put the vent plug back on and close
it securely.

■

Before recharging

When recharging, the 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

charger is off when connecting and dis-

connecting the charger cables to the bat-

tery.

■

After recharging/reconnecting the bat-

tery

The engine may not start. Follow the proce-

dure below to initialize the system.

Shift the shift lever to P.

Open and close either door.

Restart the engine.

●

Unlocking the doors using the smart

entry & start system may not be possible

immediately after reconnecting the bat-

tery. If this happens, use the wireless

remote control or the mechanical key to

lock/unlock the doors.

A
B

278

6-4. Do-it-yourself maintenance

●

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 multi-

ple attempts, contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

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

■

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.

■

Emergency measures regarding

electrolyte

●

If electrolyte gets in your eyes

Flush your eyes with clean water for at

least 15 minutes and get immediate med-

ical 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 atten-

tion 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 neces-

sary.

●

If you accidentally swallow electrolyte

Drink a large quantity of water or milk.

Get emergency medical attention imme-

diately.

NOTICE

■

When recharging the battery

Never recharge the battery while the

engine is running. Also, be sure all acces-

sories are turned off.

■

When adding distilled water

Avoid overfilling. Water spilled during

battery recharging may cause corrosion.

Adding the washer fluid

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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.

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.

Tires

Replace or rotate tires in accord-
ance with maintenance schedules
and treadwear.

Checking tires

A
B
C

280

6-4. Do-it-yourself maintenance

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 any authorized

Lexus retailer or Lexus authorized repairer,

or any reliable repairer.

■

Tire life

Any tire over 6 years old must be checked

by a qualified technician even if it has sel-

dom or never been used or damage is not

obvious.

■

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 appro-

priate for road and weather conditions.

■

If the tread on snow tires wears down

below 4 mm (0.16 in.)

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 drivetrain as well as danger-

ous handling characteristics, which may

lead to an accident resulting in death or

serious injury.

●

Do not mix tires of different makes,

models or tread patterns.

Also, do not mix tires of remarkably

different treadwear.

●

Do not use tire sizes other than those

recommended by Lexus.

●

Do not mix differently constructed

tires (radial, bias-belted or bias-ply

tires).

●

Do not mix summer, all season and

snow tires.

●

Do not use tires that have been used

on another vehicle.

Do not use tires if you do not know

how they were used previously.

●

Vehicles with a spare tire: Do not tow if

your vehicle has a spare tire installed.

●

Vehicles with an emergency tire punc-

ture repair kit: Do not tow anything if a

tire that has been repaired using the

emergency tire puncture repair kit is

installed. The load on the tire may

cause unexpected damage to the tire.

NOTICE

■

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:

●

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.

281

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Rotate the tires in the order shown.

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

■

When rotating the tires

Make sure that the 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. (



P.78)

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



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



P.309)

■

Routine tire inflation pressure checks

The tire pressure warning system does not

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

Tire pressure warning system

282

6-4. Do-it-yourself maintenance

replace routine tire inflation pressure

checks. Make sure to check tire inflation

pressure as part of your routine of daily

vehicle checks.

■

Situations in which the tire pressure

warning system may not operate prop-

erly

●

In the following cases, the tire pressure

warning system may not operate prop-

erly.

• If non-genuine Lexus wheels are used.

• A tire has been replaced with a tire that is

not an OE (Original Equipment) tire.

• A tire has been replaced with a tire that is

not of the specified size.

• Tire chains, etc. are equipped.

• An auxiliary-supported run-flat tire is

equipped.

• 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.

• Near a TV tower, electric power plant,

gas station, radio station, large display,

airport or other facility that generates

strong radio waves or electrical noise

• When carrying a portable radio, cellular

phone, cordless phone or other wireless

communication device

If tire position information is not correctly

displayed due to the radio wave conditions,

the display may be corrected by driving and

changing the radio wave conditions.

●

When the vehicle is parked, the time

taken for the warning to start or go off

could be extended.

●

When tire inflation pressure declines rap-

idly for example when a tire has burst, the

warning may not function.

■

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning

system will change in accordance with the

conditions under which it was initialized. For

this reason, the system may give a warning

even if the tire pressure does not reach a

low enough level, or if the pressure is higher

than the pressure that was adjusted to when

the system was initialized.

When replacing tires or wheels, tire
pressure warning valves and transmit-

WARNING

■

Caution regarding interference with

electronic devices

●

People with implantable cardiac pace-

makers, cardiac resynchronization

therapy-pacemakers or implantable

cardioverter defibrillators should not

come within 450 mm (17.7 in.) of the

tire pressure warning system initiators.

The radio waves may affect the opera-

tion of such devices.

●

Users of any electrical medical device

other than implantable cardiac pace-

makers, cardiac resynchronization

therapy-pacemakers or implantable

cardioverter defibrillators should con-

sult the manufacturer of the device for

information about its operation under

the influence of radio waves. Radio

waves could have unexpected effects

on the operation of such medical

devices.

Installing tire pressure warning
valves and transmitters

283

6-4. Do-it-yourself maintenance

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ters must also be installed.
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. Have tire pressure warn-
ing valve and transmitter ID codes reg-
istered by any authorized Lexus
retailer or Lexus authorized repairer,
or any reliable repairer. (



P.284)

■

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 10 minutes,

the tire pressure warning light blinks for 1

minute and stays on to indicate a system

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.



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

Park the vehicle in a safe place and
turn the engine switch off.

Initialization cannot be performed 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.

NOTICE

■

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps

●

When removing or fitting the wheels,

tires or the tire pressure warning

valves and transmitters, contact any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer as the tire pressure warning

valves and transmitters may be dam-

aged if not handled correctly.

●

Make sure to install the tire valve caps.

If the tire valve caps are not installed,

water could enter the tire pressure

warning valves and the tire pressure

warning valves could be bound.

●

When replacing tire valve caps, do not

use tire valve caps other than those

specified. The cap may become stuck.

■

To avoid damage to the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer or other

qualified service shop as soon as possi-

ble. After use of liquid sealant, make sure

to replace the tire pressure warning valve

and transmitter when repairing or

replacing the tire. (



P.282)

Initializing the tire pressure
warning system

284

6-4. Do-it-yourself maintenance

The tire pressure warning system will oper-

ate based on this pressure level.

Turn the engine switch to IGNI-
TION ON mode.

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

Wait for a few minutes with the
engine switch in IGNITION ON
mode and then turn the engine
switch off.

■

Initialization procedure

●

Make sure to carry out initialization after

adjusting the tire inflation pressure.

Also, make sure the tires are cold before

carrying out initialization or tire inflation

pressure adjustment.

●

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.

■

When initialization of the tire pressure

warning system has failed

Initialization can be completed in a few min-

utes. However, in the following cases, the

settings have not been recorded and the

system will not operate properly. If repeated

attempts to record tire inflation pressure

settings are unsuccessful, have the vehicle

inspected by any authorized Lexus retailer

or Lexus authorized repairer, or any reliable

repairer.

●

When operating the tire pressure warn-

ing reset switch, the tire pressure warning

light does not blink 3 times.

●

After carrying out the initialization proce-

dure, the tire pressure warning light

blinks for 1 minute then stays on after

driving for 20 minutes.

The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
Have the ID code registered by any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

■

Registering ID codes

The ID codes of the tire pressure warning

valve and transmitters for two sets of wheels

can be registered.
It is not necessary to register the ID codes

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

285

6-4. Do-it-yourself maintenance

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when replacing normal tires with snow tires,

if the ID codes for the wheels of both nor-

mal tires and snow tires are registered

beforehand.
For information about changing ID codes,

ask any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer.

■

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 drivetrain

If a tire needs frequent inflating, have it

checked by any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer.

■

Instructions for checking tire inflation

pressure

When checking tire inflation pressure,

observe the following:

●

Check only when the tires are cold.

If your vehicle has been parked for at least

3 hours or has not been driven for more

than 1.5 km or 1 mile, you will get an accu-

rate cold tire inflation pressure reading.

●

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.

●

Passengers and luggage weight should

be placed so that the vehicle is balanced.

Tire inflation pressure

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

286

6-4. 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
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

: Conventionally referred to as offset.

Lexus does not recommend using the
following:



Wheels of different sizes or types



Used wheels



Bent wheels that have been 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.282)

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 on 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.

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

Lexus RC-F (2022 year). Manual in english - page 16