Lexus RC F (2022 year). Manual in english

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6-4. Do-it-yourself maintenance

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■

Front

Jack point

■

Rear



Vehicles with LSD (Limited Slip Differential)

Positioning a floor jack

When using a floor jack, follow the instructions in the manual provided with the
jack and perform the operation safely.

When raising your vehicle with a floor jack, position the jack correctly.
Improper placement may damage your vehicle or cause injury.

Location of the jack point

265

6-4. Do-it-yourself maintenance

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Fuse boxes (



P.283)

Battery (



P.269)

Engine oil level dipstick (



P.265)

Engine coolant reservoir (



P.267)

Engine oil filler cap (



P.265)

Brake fluid reservoir (



P.268)

Washer fluid tank (



P.270)

Electric cooling fans
Condenser (



P.268)

Radiator (



P.268)

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 it off, wait more than 5 min-

Engine compartment

Components

A
B
C
D

E
F

Checking and adding the engine
oil

266

6-4. Do-it-yourself maintenance

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.342



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

A
B
C

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6-4. Do-it-yourself maintenance

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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.336)

■

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

coolant reservoir caps, drain cock and

water pump.

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, ser-

vice 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

268

6-4. Do-it-yourself maintenance

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 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

SAE J1703 or FMVSS No.116 DOT 3

brake fluid

SAE J1704 or FMVSS No.116 DOT 4

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.

WARNING

■

When the engine is hot

Do not remove the engine coolant reser-

voir cap. (



P.337)

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.

Checking and adding the brake
fluid

269

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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 condition (vehi-
cles with the battery indicator)

Check the battery condition by indica-
tor color.

Blue: Good condition
Red: Not working properly.
Have the battery checked by your
Lexus dealer.
White: Charging is necessary.
Have the vehicle inspected by your
Lexus dealer.

■

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.

Shift the shift lever to P.

Open and close either door.

Restart the engine.

●

Unlocking the doors using the smart

access system with push-button start may

not be possible immediately after recon-

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

270

6-4. Do-it-yourself maintenance

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 multi-

ple attempts, contact your Lexus dealer.

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.

■

How to recharge the battery

Only perform a slow charge (5 A or

less). The battery may explode if charged

at a quicker rate.

■

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.

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.
Replace the tires if the treadwear indica-
tors are showing on a tire.

WARNING

■

When adding washer fluid

Do not add washer fluid when the 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 accor-
dance with maintenance schedules
and treadwear.

Checking tires

272

6-4. Do-it-yourself maintenance

■

When to replace your vehicle’s tires

Tires should be replaced if:

●

The treadwear indicators are showing on

a tire.

●

You have tire damage such as cuts, splits,

cracks deep enough to expose the fabric,

and bulges indicating internal damage

●

A tire goes flat repeatedly or cannot be

properly repaired due to the size or loca-

tion of a cut or other damage

If you are not sure, consult 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.

■

Low profile tires

Compared to normal tires, the grip perfor-

mance of these tires will be lower on snow

covered or icy roads. Be sure to use snow

tires when driving on snowy and/or icy

roads and drive carefully at a speed appro-

priate for the road conditions.

■

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.349)

■

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.203)

■

If the tread on snow tires wears down

below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is

lost.

273

6-4. Do-it-yourself maintenance

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Tires cannot be rotated.

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.73)

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

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.

■

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

274

6-4. Do-it-yourself maintenance



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



P.305)

■

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.

■

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

■

Caution regarding interference with

electronic devices

●

People with implantable cardiac pace-

makers, cardiac resynchronization

therapy-pacemakers or implantable

cardioverter defibrillators should not

come within 17.7 in. (450 mm) of the

tire pressure warning system initiators.

The radio waves may affect the opera-

tion of such devices.

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6-4. Do-it-yourself maintenance

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When replacing tires or wheels, tire
pressure warning valves and transmit-
ters must also be installed.
When new tire pressure warning
valves and transmitters are installed,
new ID codes must be registered in the
tire 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 your Lexus dealer. (



P.276)

■

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-

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.



When changing the tire size.

When the tire pressure warning system
is initialized, the current tire inflation

WARNING

●

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

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 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 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. (



P.275)

Initializing the tire pressure
warning system

276

6-4. Do-it-yourself maintenance

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.

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 your Lexus dealer.

●

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.

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

278

6-4. Do-it-yourself maintenance

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 drivetrain

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 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.

●

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 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.

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