Lexus RX450h L (2022 year). Manual in english — page 21

351

6-1. Maintenance and care

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■

Brake pads and calipers

Rust may form if the vehicle is parked with

wet brake pads or disc rotors, causing them

to stick. Before parking the vehicle after it is

washed, drive slowly and apply the brakes

several times to dry the parts.

■

Bumpers

Do not scrub with abrasive cleaners.

■

Front side windows water-repellent

coating

●

The following precautions can extend the

effectiveness of the water-repellent coat-

ing.

• Remove any dirt, etc. from the front side

windows regularly.

• Do not allow dirt and dust to accumulate

on the windows for a long period.

Clean the windows with a soft, damp

cloth as soon as possible.

• Do not use wax or glass cleaners that

contain abrasives when cleaning the win-

dows.

• Do not use any metallic objects to

remove condensation build up.

●

When the water-repellent performance

has become insufficient, the coating can

be repaired. Contact your Lexus dealer.

■

Plated portions

If dirt cannot be removed, clean the parts as

follows:

●

Use a soft cloth dampened with an

approximately 5% solution of neutral

detergent and water to clean the dirt off.

●

Wipe the surface with a dry, soft cloth to

remove any remaining moisture.

●

To remove oily deposits, use alcohol wet

wipes or a similar product.

WARNING

■

When washing the vehicle

Do not apply water to the inside of the

engine compartment. Doing so may

cause the electrical components, etc. to

catch fire.

■

When cleaning the windshield

Set the wiper switch to off.

If the switch is in “AUTO”, the wipers may

operate unexpectedly in the following sit-

uations, and may result in hands being

caught or other serious injuries and

cause damage to the wiper blades.

Off
AUTO

●

When the upper part of the windshield

where the raindrop sensor is located is

touched by hand

●

When a wet rag or similar is held close

to the raindrop sensor

●

If something bumps against the wind-

shield

●

If you directly touch the raindrop sen-

sor body or if something bumps into

the raindrop sensor

■

Precautions regarding the exhaust

pipe

Exhaust gasses cause the exhaust pipe to

become quite hot.

When washing the vehicle, be careful not

to touch the pipe until it has cooled suffi-

ciently, as touching a hot exhaust pipe

can cause burns.

■

Precaution regarding the rear

bumper

If the paint of the rear bumper is chipped

or scratched, the following systems may

not function correctly. If this occurs, con-

sult your Lexus dealer.

●

Lexus Safety System + 2.0

●

BSM (if equipped)

A
B

352

6-1. Maintenance and care

WARNING

●

RCTA (if equipped)

●

PKSB (if equipped)

NOTICE

■

To prevent paint deterioration and

corrosion on the body and compo-

nents (aluminum wheels, etc.)

●

Wash the vehicle immediately in the

following cases:

• After driving near the sea coast

• After driving on salted roads

• If coal tar or tree sap is present on the

paint surface

• If dead insects, insect droppings or

bird droppings are present on the

paint surface

• After driving in an area contaminated

with soot, oily smoke, mine dust, iron

powder or chemical substances

• If the vehicle becomes heavily soiled

with dust or mud

• If liquids such as benzene and gasoline

are spilled on the paint surface

●

If the paint is chipped or scratched,

have it repaired immediately.

●

To prevent the wheels from corroding,

remove any dirt and store in a place

with low humidity when storing the

wheels.

■

Cleaning the exterior lights

●

Wash carefully. Do not use organic

substances or scrub with a hard brush.

This may damage the surfaces of the

lights.

●

Do not apply wax to the surfaces of the

lights.

Wax may cause damage to the lenses.

■

When using an automatic car wash

Set the wiper switch to the off position.

If the wiper switch is in “AUTO”, the wip-

ers may operate and the wiper blades

may be damaged.

■

When using a high pressure car wash

●

When washing the vehicle, do not

spray the camera or its surrounding

area directly with a high pressure

washer. Shock applied from high pres-

sure water may cause the device to not

operate normally.

●

Do not spray water directly on the

radar which is equipped behind the

emblem. Otherwise it may cause the

device to be damaged.

●

Do not bring the nozzle tip close to

boots (rubber or resin manufactured

cover), connectors or the following

parts. The parts may be damaged if

they come into contact with high-pres-

sure water.

• Traction related parts

• Steering parts

• Suspension parts

• Brake parts

●

Keep the cleaning nozzle at least 11.9

in. (30 cm) away from the vehicle

body. Otherwise resin section, such as

moldings and bumpers, may be

deformed and damaged.

Also, do not continuously hold the nozzle

in the same place.

●

Do not spray the lower part of the

windshield continuously.

If water enters the air conditioning sys-

tem intake located near the lower part of

the windshield, the air conditioning sys-

tem may not operate correctly.

●

Do not wash the underside of the vehi-

cle using a high pressure car washer.

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6-1. Maintenance and care

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

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



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

■

Shampooing the carpets

There are several commercial foaming-type

cleaners available. Use a sponge or brush

to apply the foam. Rub in overlapping cir-

cles. Do not use water. Wipe dirty surfaces

and let them dry. Excellent results are

obtained by keeping the carpet as dry as

possible.

■

Handling the seat belts

Clean with mild soap and lukewarm water

using a cloth or sponge. Also check the

belts periodically for excessive wear, fraying

or cuts.

NOTICE

●

Vehicles with towing package: Do not

point the nozzle of a high pressure

washer at the areas shown in the illus-

tration, as high pressure water may

damage the oil cooler.

Cleaning and protecting the
vehicle interior

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

Protecting the vehicle interior

354

6-1. Maintenance and care

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in the vehi-

cle, such as on the floor, in the hybrid

battery (traction battery) air vents, and

in the luggage compartment.

Doing so may cause the hybrid battery,

electrical components, etc. to mal-

function or catch fire.

●

Do not get any of the SRS components

or wiring in the vehicle interior wet.

(



P.30)

An electrical malfunction may cause

the airbags to deploy or not function

properly, resulting in death or serious

injury.

●

Vehicles with wireless charger: Do not

let the wireless charger (



P.330) get

wet. Failure to do so may cause the

charger to become hot and cause

burns or could cause electric shock

resulting in death or serious injury.

■

Cleaning the interior (especially

instrument panel)

Do not use polish wax or polish cleaner.

The instrument panel may reflect off the

windshield, obstructing the driver’s view

and leading to an accident, resulting in

death or serious injury.

NOTICE

■

Cleaning detergents

●

Do not use the following liquids, as

they may discolor the vehicle interior

or cause streaks or damage to painted

surfaces:

• Center Display: Organic substances

such as benzine or gasoline, alkaline

solutions, and alcohol

• Seats: Alkaline solutions, organic sub-

stances such as thinner or benzine,

and alcohol

• Other parts: Organic substances such

as benzine or gasoline, alkaline or

acidic solutions, dye, and bleach

●

Do not use polish wax or polish

cleaner. The instrument panel’s or

other interior part’s painted surface

may be damaged.

■

Preventing damage to leather sur-

faces

Observe the following precautions to

avoid damage to and deterioration of

leather surfaces:

●

Remove any dust or dirt from leather

surfaces immediately.

●

Do not expose the vehicle to direct

sunlight for extended periods of time.

Park the vehicle in the shade, espe-

cially during summer.

●

Do not place items made of vinyl, plas-

tic, or containing wax on the uphol-

stery, as they may stick to the leather

surface if the vehicle interior heats up

significantly.

■

Water on the floor

Do not wash the vehicle floor with water.

Vehicle systems such as the audio system

may be damaged if water comes into

contact with electrical components such

as the audio system above or under the

floor of the vehicle. Water may also

cause the body to rust.

■

When cleaning the inside of the wind-

shield

Do not allow glass cleaner to contact the

lens. Also, do not touch the lens.

(



P.212)

■

Cleaning the inside of the rear win-

dow

●

Do not use glass cleaner to clean the

rear window, as this may cause dam-

age to the rear window defogger

heater wires or antenna. Use a cloth

dampened with lukewarm water to

gently wipe the window clean. Wipe

the window in strokes running parallel

to the heater wires or antenna.

●

Be careful not to scratch or damage

the heater wires or antenna.

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

Remove dirt and dust using a vac-
uum cleaner.



Wipe off any excess dirt and dust
with a soft cloth dampened with
diluted detergent.

Use a diluted water solution of approxi-
mately 5% neutral wool detergent.



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



Wipe the surface with a dry, soft
cloth to remove any remaining
moisture. Allow the leather to dry in
a shaded and ventilated area.

■

Caring for leather areas

Lexus recommends cleaning the interior of

the vehicle at least twice a year to maintain

the quality of the vehicle’s interior.



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.

Cleaning the leather areas

Cleaning the synthetic leather
areas

356

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.

■

Resetting the message indicating main-

tenance is required (U.S.A. only)

After the required maintenance is pre-

formed according to the maintenance

schedule, please reset the message.

To reset the message, follow the procedures

described below:

1

Press

or

of the meter control

switch to select

.

2

Press

or

of the meter control

switch, select the “Scheduled Mainte-

nance” screen and then press and hold
the .

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 12-volt 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.

●

12-volt battery posts, terminals and

related accessories contain lead and

lead compounds which are known to

cause brain damage. Wash your hands

after handling. (



P.370)

General maintenance

Scheduled maintenance

357

6-2. Maintenance

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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 hybrid system is operating

Turn the hybrid system off and ensure

that there is adequate ventilation before

performing maintenance checks.

Engine compartment

Items

Check points

Brake fluid

Is the brake fluid at the
correct level?
(



P.369)

Engine/power
control unit cool-
ant

Is the engine/power
control unit coolant at
the correct level?
(



P.367)

Engine oil

Is the engine oil at the
correct level?
(



P.365)

Exhaust system

There should not be
any fumes or strange
sounds.

358

6-2. Maintenance

Radiator/con-
denser

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



P.368)

Washer fluid

Is there sufficient
washer fluid?
(



P.369)

Luggage compartment

Items

Check points

12-volt battery

Check the connec-
tions. (



P.370)

Vehicle interior

Items

Check points

Accelerator
pedal

• The accelerator

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

Hybrid transmis-
sion “Park” mech-
anism

• 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?

• Are the headlights

aimed correctly?
(



P.390)

Parking brake

• Does the parking

brake switch oper-
ate normally?

• 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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6-2. Maintenance

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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

• Do the doors oper-

ate 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 nuts

should not be loose.

Windshield wip-
ers/rear window
wiper

• The wiper blades

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

• The wiper blades

should clear the
windshield/rear win-
dow without streak-
ing or skipping.

Items

Check points

360

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 12-volt battery is discon-
nected 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

361

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

12-volt battery
condition
(



P.370)

• Grease
• Conventional

wrench (for terminal
clamp bolts)

Brake fluid level
(



P.369)

• FMVSS No.116 DOT

3 or SAE J1703
brake fluid

• Rag or paper towel
• Funnel (used only for

adding brake fluid)

Engine/power
control unit cool-
ant level
(



P.367)

• “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.365)

• “Toyota Genuine

Motor Oil” or equiv-
alent

• Rag or paper towel
• Funnel (used only for

adding engine oil)

Fuses (



P.388)

• Fuse with same

amperage rating as
original

Headlight aim
(



P.390)

• Phillips-head screw-

driver

Items

Parts and tools

362

6-3. Do-it-yourself maintenance

Light bulbs
(



P.392)

• Bulb with same num-

ber and wattage rat-
ing as original

• Flathead screw-

driver

• Wrench

Radiator and con-
denser (



P.368)



Tire inflation pres-
sure (



P.380)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(



P.369)

• Water or washer

fluid containing anti-
freeze (for winter
use)

• Funnel (used only for

adding water or
washer fluid)

WARNING

The engine compartment contains many

mechanisms and fluids that may move

suddenly, become hot, or become elec-

trically energized. To avoid death or seri-

ous injury, observe the following

precautions.

■

When working on the engine com-

partment

●

Make sure that the “ACCESSORY” or

“IGNITION ON” on the multi-infor-

mation display and the “READY” indi-

cator are both off.

●

Keep hands, clothing and tools away

from the moving fan and engine drive

belt.

●

Be careful not to touch the engine,

power control unit, radiator, exhaust

manifold, etc. right after driving as they

may be hot. Oil and other fluids may

also be hot.

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. Fuel fumes are

flammable.

■

When working near the electric cool-

ing fan or radiator grille

Be sure the power switch is off.

With the power switch in ON mode, the

electric cooling fans may automatically

start to run if the air conditioning is on

and/or the coolant temperature is high.

(



P.368)

■

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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6-3. Do-it-yourself maintenance

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1

Pull the hood lock release lever.

The hood will pop up slightly.

2

Pull up the auxiliary catch lever and
lift the hood.

■

Front

Hood

Opening the hood

WARNING

■

Pre-driving check

Check that the hood is fully closed and

locked.

If the hood is not locked properly, it may

open while the vehicle is in motion and

cause an accident, which may result in

death or serious injury.

Positioning a floor jack

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

Location of the jack point

364

6-3. Do-it-yourself maintenance

■

Rear

365

6-3. Do-it-yourself maintenance

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Washer fluid tank (



P.369)

Brake fluid reservoir (



P.369)

Engine oil level dipstick (



P.366)

Engine coolant reservoir (



P.367)

Power control unit coolant reservoir (



P.367)

Fuse boxes (



P.388)

Radiator (



P.368)

Power control unit coolant radiator (



P.368)

Condenser (



P.368)

Electric cooling fans
Engine oil filler cap (



P.366)

■

12-volt battery



P.370

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

Engine compartment

Components

A
B
C
D

E
F

G

H

I

J

K

Checking and adding the engine
oil

366

6-3. Do-it-yourself maintenance

on the dipstick.

■

Checking the engine oil

1

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

2

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

3

Wipe the dipstick clean.

4

Reinsert the dipstick fully.

5

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.

6

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.455



Oil quantity (Low



Full)

1.9 qt. (1.8 L, 1.6 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.

1

Remove the oil filler cap by turning
it counterclockwise.

2

Add engine oil slowly, checking the
dipstick.

3

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.

A
B
C