Lexus RZ450E (2023 year). Manual in english

403

6-3. Reducing impact to the occupants in a collision

Driving

suppo

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• SRS curtain shield airbags

●

When the pad section of the steering

wheel, the dashboard near the front pas-

senger SRS airbag or the lower side of

the instrument panel is scratched,

cracked, or otherwise damaged.

●

When the surface of a seat with an SRS

side airbag is scratched, cracked, or oth-

erwise damaged.

WARNING

■

SRS airbag precautions

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

The driver and all passengers must

wear their seat belts correctly.

The SRS airbags are supplemental

devices to be used with the seat belts.

●

The SRS driver airbag deploys with

considerable force, and can cause

death or serious injury, especially if the

driver is very close to the airbag. The

National Highway Traffic Safety

Administration (NHTSA) advises:

Since the risk zone for the driver’s airbag

is the first 2 - 3 in. (50 - 75 mm) of infla-

tion, placing yourself 10 in. (250 mm)

from your driver airbag provides you with

a clear margin of safety. This distance is

measured from the center of the steering

wheel to your breastbone. If your current

driving position places you less than 10

in. (250 mm) away from the driver air-

bag, you can change your driving posi-

tion in several ways:
• Move your seat to the rear as far as

possible while still being able to reach

the pedals comfortably.

• Slightly recline the seatback. Although

vehicle designs vary, many drivers can

achieve the 10 in. (251 mm) distance,

even with the driver seat all the way

forward, simply by reclining the seat-

back somewhat. If reclining the seat-

back makes it hard to see the road,

raise yourself by using a firm, non-slip-

pery cushion, or raise the seat if your

vehicle has that feature.

• If your steering wheel is adjustable, tilt

it downward. This points the airbag

toward your chest instead of your head

and neck. The seat should be adjusted

as recommended by the NHTSA,

while still being able to control the

vehicle with the pedals and steering

wheel, and maintaining your view of

the instrument panel controls.

●

If a seat belt extender has been con-

nected to a front seat belt buckle but

the latch plate of the seat belt has not

been fastened to the seat belt

extender, the SRS airbag system will

judge that the occupant is wearing the

seat belt even though the seat belt has

not been fastened. In this case, the SRS

front airbags may not deploy correctly

in a collision, resulting in death or seri-

ous injury. Be sure to wear the seat belt

correctly when using a seat belt

extender.

●

The SRS front passenger airbag

deploys with considerable force, and

can cause death or serious injury,

especially if the front passenger is very

close to the airbag. The front passen-

ger seat should be positioned as far

possible from the airbag with the seat-

back adjusted so that the passenger is

sat upright.

404

6-3. Reducing impact to the occupants in a collision

WARNING

●

Improperly seated and/or restrained

infants and children can be killed or

seriously injured by a deploying airbag.

An infant or child who is too small to

use a seat belt should be properly

secured using a child restraint system.

Lexus strongly recommends that all

infants and children be placed in the

rear seats of the vehicle and properly

restrained. The rear seats are safer for

infants and children than the front pas-

senger seat. (



P.68)

●

Do not sit on the edge of the seat or

lean against the dashboard.

●

Do not allow a child to stand in front of

the SRS front passenger airbag or sit

on the lap of a front passenger.

●

Front seat occupants should never

hold items on their lap.

●

Do not lean against the door, roof side

rail, or front, side, or rear pillar.

●

Do not allow anyone to kneel on a seat

toward the door or put their head or

hands outside the vehicle.

●

Do not attach anything to or lean any-

thing against areas such as the dash-

board, steering wheel pad and lower

portion of the instrument panel.

●

Do not attach anything to areas such

as the doors, windshield, side windows,

front or rear pillars, roof side rails and

assist grips. (With the exception of the

speed limit label



P.512)

●

Do not hang coat hangers or other

hard objects on the coat hooks. These

items could become projectiles if the

SRS curtain shield airbags deploy, pos-

sibly leading to death or serious injury.

●

If a vinyl cover is attached to the area

where the SRS knee airbag deploys,

be sure to remove it.

405

6-3. Reducing impact to the occupants in a collision

Driving

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WARNING

●

Do not use seat accessories which

cover the parts from which the SRS

airbags deploy, as they may interfere

with inflation of the SRS airbags. Such

accessories may prevent the SRS air-

bags from deploying correctly, may

disable the system or cause the SRS

airbags to inflate unintentionally, possi-

bly resulting in death or serious injury.

●

Do not strike or apply significant force

to the SRS airbag system components,

front doors or their surrounding area.

Doing so may cause the SRS airbags

to malfunction.

●

Do not touch any components of the

SRS airbags immediately after the SRS

airbags have deployed (inflated) as

they may be hot.

●

If breathing becomes difficult after the

SRS airbags have deployed, open a

door or window to allow fresh air in, or

leave the vehicle if it is safe to do so.

Wash off any residue as soon as possi-

ble to prevent skin irritation.

●

If a part where an SRS airbag is stored

is damaged or cracked, have it

replaced by your Lexus dealer.

●

Do not place anything, such as a cush-

ion, on the front passenger's seat.

Doing so will disperse the passenger’s

weight, which prevents the sensor

from detecting the passenger’s weight

properly. As a result, the SRS front air-

bags for the front passenger’s seat may

not deploy in the event of a collision.

■

Modification and disposal of SRS air-

bag system components

Do not dispose of your vehicle or per-

form any of the following modifications

without consulting your Lexus dealer.

The SRS airbags may malfunction or

deploy unintentionally, possibly leading

to death or serious injury.

●

Removal, installation, disassembly or

repair of the SRS airbags

●

Repair, removal or modification of the

following parts or their surrounding

• Steering wheel

• Instrument panel

• Dashboard

• Seats

• Seat upholstery

• Front pillars

• Side pillars

• Rear pillars

• Roof side rails

• Front door panels

• Front door trim

• Front door speakers

●

Modifications to the front door panels

(such as making holes in them)

●

Repair or modification of the following

parts or their surrounding

• Front fender

• Front bumper

• Sides of the vehicle interior

●

Installation of the following parts or

accessories

• Bull bars or kangaroo bars

• Snow plows

• Winches

• Roof luggage carriers

●

Modifications to the vehicle's suspen-

sion

●

Installation of electronic devices such

as mobile two-way radios (RF-trans-

mitter) and CD players

407

6-3. Reducing impact to the occupants in a collision

Driving

suppo

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SRS warning light
Front passenger’s seat belt reminder light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light

Front passenger occupant classification system

Your vehicle is equipped with a front passenger occupant classification system.
This system detects the conditions of the front passenger seat and activates or
deactivates the following SRS airbags.



SRS front passenger airbag



SRS front passenger knee airbag

System components

A
B
C
D

WARNING

■

Front passenger occupant classifica-

tion system precautions

Observe the following precautions

regarding the front passenger occupant

classification system. Failure to do so may

cause death or serious injury.

●

Wear the seat belt properly.

●

Make sure the front passenger’s seat

belt plate has not been left inserted

into the buckle before someone sits in

the front passenger seat.

408

6-3. Reducing impact to the occupants in a collision

WARNING

●

Make sure the “AIR BAG OFF” indica-

tor light is not illuminated when using

the seat belt extender for the front pas-

senger seat. If the “AIR BAG OFF”

indicator light is illuminated, discon-

nect the extender tongue from the seat

belt buckle, and reconnect the seat

belt. Reconnect the seat belt extender

after making sure the “AIR BAG ON”

indicator light is illuminated. If you use

the seat belt extender while the “AIR

BAG OFF” indicator light is illumi-

nated, the SRS airbags for the front

passenger will not activate, which

could cause death or serious injury in

the event of a collision.

●

Do not apply a heavy load to the front

passenger seat or equipment (e.g.

seatback pocket or armrest).

●

Do not put weight on the front passen-

ger seat by putting your hands or feet

on the front passenger seat seatback

from the rear passenger seat.

●

Do not let a rear passenger lift the

front passenger seat with their feet or

press on the seatback with their legs.

●

Do not put objects under the front pas-

senger seat.

●

Do not recline the front passenger

seatback so far that it touches a rear

seat. This may cause the “AIR BAG

OFF” indicator light to be illuminated,

which indicates that the SRS airbags

for the front passenger will not activate

in the event of a severe accident. If the

seatback touches the rear seat, return

the seatback to a position where it

does not touch the rear seat. Keep the

front passenger seatback as upright as

possible when the vehicle is moving.

Reclining the seatback excessively

may lessen the effectiveness of the

seat belt system.

●

If an adult sits in the front passenger

seat, the “AIR BAG ON” indicator light

is illuminated. If the “AIR BAG OFF”

indicator is illuminated, ask the passen-

ger to sit up straight, well back in the

seat, feet on the floor, and with the seat

belt worn correctly. If the “AIR BAG

OFF” indicator still remains illumi-

nated, either ask the passenger to

move to the rear seat, or if that is not

possible, move the front passenger

seat fully rearward.

●

When it is unavoidable to install a for-

ward-facing child restraint system on

the front passenger seat, install the

child restraint system on the front pas-

senger seat in the proper order.

(



P.69)

●

Do not modify or remove the front

seats.

●

Do not kick the front passenger seat or

subject it to severe impact. Otherwise,

the SRS warning light may come on to

indicate a malfunction of the front pas-

senger occupant classification system.

In this case, contact your Lexus dealer

immediately.

●

Child restraint systems installed on the

rear seat should not contact the front

seatbacks.

●

Do not use a seat accessory, such as a

cushion and seat cover, that covers the

seat cushion surface.

●

Do not modify or replace the uphol-

stery of the front seat.

409

6-3. Reducing impact to the occupants in a collision

Driving suppo

sys
te

■

Adult

■

Child

■

Child restraint system with infant

Front passenger occupant classification system conditions and opera-
tion

Indicator/warning light

“AIR BAG ON” and “AIR BAG OFF” indi-

cator lights

“AIR BAG ON”

SRS warning light

Off

Front passenger’s seat belt reminder light

Off

or flashing

Devices

Front passenger airbag

Activated

Front passenger knee airbag

Indicator/warning light

“AIR BAG ON” and “AIR BAG OFF” indi-

cator lights

“AIR BAG OFF” or

“AIR BAG ON”

SRS warning light

Off

Front passenger’s seat belt reminder light

Off

or flashing

Devices

Front passenger airbag

Deactivated or acti-

vated

Front passenger knee airbag

Deactivated or acti-

vated

*2, 4

Indicator/warning light

“AIR BAG ON” and “AIR BAG OFF” indi-

cator lights

“AIR BAG OFF”

SRS warning light

Off

Front passenger’s seat belt reminder light

Off

or flashing

Devices

Front passenger airbag

Deactivated

Front passenger knee airbag

410

6-3. Reducing impact to the occupants in a collision

■

Unoccupied

■

System malfunction

: The system judges a person of adult size as an adult. When a smaller adult sits in the

front passenger seat, the system may not recognize them as an adult depending on their
physique and posture.

: In the event the front passenger is wearing a seat belt.

: In the event the front passenger does not wear a seat belt.

: For some children, child in seat, child in booster seat or child in convertible seat, the sys-

tem may not recognize them as a child. Factors which may affect this can be the phy-
sique or posture.

: Never install a rear-facing child restraint system on the front passenger seat. A for-

ward-facing child restraint system should only be installed on the front passenger seat
when it is unavoidable. (



P.69)

: In case the indicator light is not illuminated, consult this manual on how to install the child

restraint system properly. (



P.69)

Indicator/warning light

“AIR BAG ON” and “AIR BAG OFF” indi-

cator lights

“AIR BAG OFF”

SRS warning light

Off

Front passenger’s seat belt reminder light

Devices

Front passenger airbag

Deactivated

Front passenger knee airbag

Indicator/warning light

“AIR BAG ON” and “AIR BAG OFF” indi-

cator lights

“AIR BAG OFF”

SRS warning light

Front passenger’s seat belt reminder light

Off

Devices

Front passenger airbag

Deactivated

Front passenger knee airbag

412

7-1. Connected Services

7-1.Connected Services

Microphone

LED light indicators
“SOS” button

Subscribers have the following Safety
Connect services available:



Automatic Collision Notification

Helps drivers receive necessary response
from emergency service providers.
(



P.413)

: U.S. Patent No. 7,508,298 B2



Stolen Vehicle Location

Helps drivers in the event of vehicle theft.
(



P.413)



Emergency Assistance Button
(“SOS”)

Connects drivers to response-center sup-
port. (



P.413)



Enhanced Roadside Assistance

Provides drivers various on-road assis-
tance. (



P.413)

After you have signed the Telematics
Subscription Service Agreement and
are enrolled, you can begin receiving
services.
A variety of subscription terms is avail-
able for purchase. Contact your Lexus
dealer, call the following or push the
“SOS” button in your vehicle for fur-
ther subscription details.



The United States

1-800-25-LEXUS (1-800-255-3987)



Canada

Safety Connect

Safety Connect is a subscrip-
tion-based telematics service that
uses Global Positioning System
(GPS) data and embedded cellular
technology to provide safety and
security features to subscribers.
Safety Connect is supported by
Lexus’ designated response center,
which operates 24 hours per day, 7
days per week.

Safety Connect service is available
by subscription on select, telemat-
ics hardware-equipped vehicles.

By using the Safety Connect ser-
vice, you are agreeing to be bound
by the Telematics Subscription Ser-
vice Agreement and its Terms and
Conditions, as in effect and
amended from time to time, a cur-
rent copy of which is available at
Lexus.com. All use of the Safety
Connect service is subject to such
then-applicable Terms and Condi-
tions.

System components

Services

Subscription

B
C

413

7-1. Connected Services

Wirel

ess co
mmunica

tion

1-800-26-LEXUS (1-800-265-3987)



Puerto Rico

1-877-539-8777

■

Safety Connect Services Information

●

Phone calls using the vehicles Blue-
tooth

technology will not be possible

during Safety Connect.

●

Safety Connect is available beginning Fall

2009 on select Lexus models (in the

contiguous United States only). Contact

with the Safety Connect response center

is dependent upon the telematics device

being in operative condition, cellular con-

nection availability, and GPS satellite sig-

nal reception, which can limit the ability to

reach the response center or receive

emergency service support. Enrollment

and Telematics Subscription Service

Agreement required. A variety of sub-

scription terms is available; charges vary

by subscription term selected and loca-

tion.

●

Automatic Collision Notification, Emer-

gency Assistance and Stolen Vehicle

Location will function in the United

States, including Hawaii and Alaska,

Puerto Rico and in Canada, and

Enhanced Roadside Assistance will func-

tion in the United States, Puerto Rico and

in Canada.

●

Automatic Collision Notification, Emer-

gency Assistance, Stolen Vehicle and

Enhanced Road Assistance will not func-

tion in the United States Virgin Islands.

For vehicles first sold in the USVI, no

Safety Connect services will function in

and outside the United States Virgin

Islands.

●

Safety Connect services are not subject

to section 255 of the Telecommunica-

tions Act and the device is not TTY com-

patible.

■

Languages

The Safety Connect response center will

offer support in multiple languages. The

Safety Connect system will offer voice

prompts in English, Spanish, and French.

Please indicate your language of choice

when enrolling.

■

When contacting the response center

You may be unable to contact the response

center if the network is busy.

■

Free/Open Source Software Informa-

tion

This product contains Free/Open Source

Software (FOSS). The license information

and/or the source code of such FOSS can

be found at the following URL.
https://opensource.lge.com/osSch/

list?types=ALL&search=TL21BNU

When the power switch is turned to
ON, the red indicator light comes on
for 2 seconds then turns off. Afterward,
the green indicator light comes on,
indicating that the service is active.
The following indicator light patterns
indicate specific system usage condi-
tions:



Green indicator light on = Active
service



Green indicator light flashing =
Safety Connect call in process



Red indicator light (except at vehi-
cle start-up) = System malfunction
(contact your Lexus dealer)



No indicator light (off) = Safety
Connect service not active

■

Automatic Collision Notification

In case of either airbag deployment or
severe rear-end collision, the system is
designed to automatically call the

Safety Connect LED light Indi-
cators

Safety Connect services

414

7-1. Connected Services

response center. The responding agent
receives the vehicle’s location and
attempts to speak with the vehicle
occupants to assess the level of emer-
gency. If the occupants are unable to
communicate, the agent automatically
treats the call as an emergency, con-
tacts the nearest emergency services
provider to describe the situation, and
requests that assistance be sent to the
location.

■

Stolen Vehicle Location

If your vehicle is stolen, Safety Connect
can work with local authorities to assist
them in locating and recovering the
vehicle. After filing a police report, call
the Safety Connect response center at
1-800-25-LEXUS
(1-800-255-3987) in the United
States, 1-877-539-8777 in Puerto
Rico or 1-800-265-3987 in Canada,
and follow the prompts for Safety Con-
nect to initiate this service.
In addition to assisting law enforce-
ment with recovery of a stolen vehicle,
Safety-Connect-equipped vehicle
location data may, under certain cir-
cumstances, be shared with third par-
ties to locate your vehicle. Further
information is available at Lexus.com.

■

Emergency Assistance Button
(“SOS”)

In the event of an emergency on the
road, push the “SOS” button to reach
the Safety Connect response center.
The answering agent will determine
your vehicle’s location, assess the
emergency, and dispatch the neces-
sary assistance required.

If you accidentally press the “SOS” button,
tell the response-center agent that you are
not experiencing an emergency.

■

Enhanced Roadside Assistance

Enhanced Roadside Assistance adds
GPS data to the already included war-
ranty-based Lexus roadside service.
Subscribers can press the “SOS” but-
ton to reach a Safety Connect
response-center agent, who can help
with a wide range of needs, such as:
towing, flat tire, fuel delivery, etc. For a
description of the Roadside Assistance
services and their limitations, please
see the Safety Connect Terms and
Conditions, which are available at
Lexus.com.

Important! Read this information about
exposure to radio frequency signals
before using Safety Connect;
The Safety Connect system installed in
your vehicle is a low-power radio trans-
mitter and receiver. It receives and also
sends out radio frequency (RF) signals.
In August 1996, the Federal Commu-
nications Commission (FCC) adopted
RF exposure guidelines with safety lev-
els for mobile wireless phones. Those
guidelines are consistent with the
safety standards previously set by the
following U.S. and international stan-
dards bodies.



ANSI (American National Stan-
dards Institute) C95.1 [1992]

Safety information for Safety
Connect

417

Mai
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Maintenance and care

8-1. Exterior maintenance and care

Washing the vehicle..................

418

8-2. Cleaning and protecting the

vehicle interior

Cleaning the vehicle interior

........................................................

422

Cleaning the synthetic leather

areas ............................................

424

8-3. Maintenance

Maintenance requirements ..

425

Scheduled maintenance outline

........................................................

426

Do-it-yourself maintenance

........................................................

426

General maintenance.............

427

Motor compartment mainte-

nance items list........................

427

Vehicle interior maintenance

items list......................................

428

Vehicle exterior maintenance

items list......................................

429

Emission inspection and mainte-

nance (I/M) programs .........

429

8-4. Inspection of consumables

Do-it-yourself service precautions

.........................................................

431

Opening the hood ....................

433

Motor compartment................

435

Adding washer fluid.................

440

Air conditioning filter mainte-

nance............................................

441

8-5. Tire maintenance

Tire maintenance ......................

444

Tire inspection items................

444

Operation of the tire pressure

warning system .......................

446

Checking tire inflation pressure

.......................................................

454

Lifting the vehicle with a floor jack

.......................................................

456

Rotating the tires.......................

457

Wheels ..........................................

458

Replacing the tire......................

459

Headlight aim .............................

466

418

8-1. Exterior maintenance and care

8-1.Exterior maintenance and care

Perform cleaning in a manner appro-
priate to each component and its
material.



Working from top to bottom, liber-
ally apply water to the vehicle body,
wheel wells and underside of the
vehicle to remove any dirt and dust.



Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.



For hard-to-remove marks, use car
wash soap and rinse thoroughly with
water.



Wipe away any water.

■

Self-restoring coat

The vehicle body has a self-restoring coat-

ing that is resistant to small surface

scratches caused by a car wash, etc.

●

The coating lasts for 5 to 8 years from

when the vehicle is delivered from the

plant.

●

The restoration time differs depending on

the depth of the scratch and outside tem-

perature.

The restoration time may become shorter
when the coating is warmed by applying
warm water.

●

Deep scratches caused by keys, coins,

etc., cannot be restored.

●

Do not use waxes that contain abrasives.

■

When using a car wash

If the door handle becomes wet while the

Washing the vehicle

WARNING

Do not apply water to the inside of the

motor compartment.

Doing so may cause the electrical com-

ponents, etc. to catch fire.

NOTICE

■

To prevent paint deterioration and

corrosion of the body and compo-

nents (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 benzine or 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.

■

To prevent damage to the windshield

wiper arms

When lifting the wiper arms away from

the windshield, pull the driver side wiper

arm upward first, and repeat for the pas-

senger side. When returning the wipers

to their original position, do so from the

passenger side first.

419

8-1. Exterior maintenance and care

Mai
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are

electronic key is within the effective range,

the door may lock and unlock repeatedly. In

that case, follow the following correction

procedures to wash the vehicle:

●

Place the key in a position 6 ft. (2 m) or

more separate from the vehicle while the

vehicle is being washed.

Take care to ensure that the key is not sto-
len.

●

Set the electronic key to battery-saving

mode to disable the smart access system

with push-button start.

■

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.



Perform the following before wash-
ing your vehicle:

• Fold the mirrors.
• Vehicles with power back door:
Turn off the power back door.
Start washing from the front of the vehicle.
Extend the mirrors before driving.



Brushes used in automatic car
washes may scratch the vehicle sur-
face, parts (wheel, etc.) and harm
your vehicle’s paint.



Depending on the automatic car
wash, the rear spoiler may become
caught, preventing it from being

washed or causing damage to it.



When the shift position needs to be
held in N, refer to P.148.

Using an automatic car wash

NOTICE

When using an automatic car wash,

move the wiper lever to the off position.

If the wiper lever is in the AUTO position,

the wipers may operate unintentionally

and the wiper blades may be damaged.

Using a high pressure washer to
wash the vehicle

NOTICE

●

When washing the vehicle, do not

spray any of the cameras or their sur-

rounding area directly. The shock from

high pressure water may cause a cam-

era to malfunction.

●

Do not bring the tip of the nozzle close

to connectors or the boots (rubber or

resin cover) of the following parts.

The parts may be damaged if sprayed by
high-pressure water.
• Drivetrain related parts

• Steering parts

• Suspension parts

• Brake parts

●

Keep the tip of the nozzle at least 11.9

in. (30 cm) away from the vehicle

body. Otherwise resin parts, such as

the moldings, bumpers, etc., may be

deformed and damaged. Also, do not

continuously spray water on the same

place.

●

Do not spray the lower part of the

windshield continuously. If water

enters the air conditioning system

intake located near the lower part of

the windshield, the air conditioning

system may not operate correctly.

●

Do not wash the underside of the vehi-

cle using a high pressure car washer. If

water enters the traction battery, the

EV system may malfunction.

420

8-1. Exterior maintenance and care

When using a high pressure washer, as
water may enter the cabin, do not bring
the tip of the nozzle near the gaps
around the doors or perimeter of the
windows, or spray these areas continu-
ously.

Perform the following:



Remove any dirt immediately using
a neutral cleaning agent.



Wash detergent off with water
immediately after use.



To protect the finish from damage,
make sure to observe the following
precautions.

• Do not use acidic, alkaline or abrasive

cleaners

• Do not use hard brushes
• Do not use detergent on the wheels

when they are hot, such as after driving
or parking in hot weather

■

Painted brake calipers

●

When using detergent, use neutral deter-

gent. Do not use hard brushes or abra-

sive cleaners, as they will damage the

paint.

●

Do not use detergent on the brake cali-

pers when they are hot.

●

Wash detergent off immediately after

use.

Do not scrub with abrasive cleaners.

If dirt cannot be removed, clean the
parts as follows:



Use a soft cloth dampened with an
approximately 5 % solution of neu-
tral 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.

NOTICE

●

Do not use the washer on the area

around the charging port lid. Water

could get into the charging inlet and

could damage the vehicle.

Cleaning the wheels and wheel
ornaments

Cleaning the bumpers

WARNING

If the paint of the front or rear bumper is

chipped or scratched, the following sys-

tems may not function correctly. If this

occurs, consult your Lexus dealer.

●

Lexus Safety System + 3

●

BSM (Blind Spot Monitor)

●

Safe Exit Assist

●

Intuitive parking assist (if equipped)

●

RCTA (Rear cross traffic alert)

●

PKSB (Parking Support Brake) (if

equipped)

Cleaning and protecting the
plated portions

421

8-1. Exterior maintenance and care

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■

Front side windows water-repellent

coating

The effectiveness of the water-repellent

coating can be extended by paying atten-

tion to the following.

●

Remove any dirt, etc., from the front side

windows regularly.

●

Do not allow dirt and dust to accumulate

on the windows.

If dirty, 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.

Wax the vehicle when the waterproof
coating has deteriorated.
If water does not bead on a clean sur-
face, apply wax when the vehicle body
is cool.

Cleaning the exterior lights

NOTICE

●

Wash carefully. Do not use organic

substances or scrub with a hard brush.

Doing so may damage the surface of the
lights.

●

Do not apply wax to the lights.

Wax may damage the lenses.

Cleaning the windshield

WARNING

Move the wiper lever to the off position.

If the wiper lever is in the AUTO position,

the wipers may operate unexpectedly in

the following situations, possibly leading

serious injury from a hand being caught,

or 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

Waxing the vehicle

Cleaning aluminum parts

NOTICE

When cleaning the hood, do not push

hard or put weight on it. The aluminum

part may be dented.

422

8-2. Cleaning and protecting the vehicle interior

8-2.Cleaning and protecting the vehicle interior

Cleaning the vehicle interior

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in the vehi-

cle. Doing so may cause the electrical

components, etc., to malfunction or

catch fire.

●

Do not get any of the SRS components

or wiring in the vehicle interior wet.

An electrical malfunction may cause the

airbags to deploy or not function prop-

erly, resulting in death or serious injury.

●

Do not let the wireless charger

(



P.225) get wet. Failure to do so

may cause the charger to become hot

and cause burns or could cause elec-

tric shock resulting in death or serious

injury.

■

Cleaning the interior (especially

instrument panel)

Do not use wax polish or a polishing

cleaner on the instrument panel. The

instrument panel may reflect off the

windshield, obstructing the driver’s view

and leading to an accident, resulting in

death or serious injury.

■

To prevent burns

If the vehicle is left in direct sunlight for a
long time, the underside of the glass roof

could become very hot and could cause

burns.

: If equipped

NOTICE

■

Cleaning solvents

●

Do not use the following cleaning sol-

vents, as they may discolor the vehicle

interior or cause streaks or damage to

painted surfaces:

• Areas other than the seats: Organic

substances such as benzine or gaso-

line, alkaline or acidic solutions, dye,

and bleach

• Seats: thinner, benzine, alcohol, or

alkaline or acidic solutions

●

Do not use wax polish or a polishing

cleaner. The painted surfaces of the

instrument panel or other interior

parts may be damaged.

■

Water on the floor

Do not wash the vehicle floor with water.

If water contacts audio system or other

electrical components under the floor

carpet, it may cause the vehicle to mal-

function. 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 of the front camera. Also, do not

touch the lens.

■

Cleaning the inside of the rear win-

dow

●

Do not use glass cleaners 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.

423

8-2. Cleaning and protecting the vehicle interior

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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

Excellent results can be obtained by keep-

ing the carpet as dry as possible. When

cleaning, use a commercially available

foaming-type cleaner.
Use a sponge or brush to apply the foam

and rub it in overlapping circles. Do not use

water. Wipe the surface to remove the

cleaner and dirt and let it dry.

■

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.

■

Handling precautions of the panoramic
fixed moon roof glass (Low-E coating)

: If equipped

●

Do not rub the glass with a metal tool, etc.

●

Note that applying film to the glass sur-

face may damage the function of the

coating.

●

Note that attaching a sucker to the glass

surface may cause suction marks to

remain.

NOTICE

■

Cleaning the panoramic fixed moon

roof glass (if equipped)

When cleaning the panoramic fixed

moon roof glass, do not use a compound

or abrasive articles, such as a glass

cleaner, detergent, wax, etc. Doing so

may damage the coating.

425

8-3. Maintenance

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8-3.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

General maintenance should be performed

on a daily basis. This can be done by your-

self or by a Lexus dealer.

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

●

Oils and fluids contained in vehicles as

well as waste produced by component

wear contain or emit chemicals known

to the State of California to cause can-

cer and birth defects or other repro-

ductive 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.

427

8-3. Maintenance

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General maintenance

General maintenance items should
be performed at the intervals speci-
fied in the “Warranty and Service
Guide” or “Owner’s Manual Sup-
plement”. This can be done by your-
self or by a Lexus dealer. It is
recommended that any problem
you notice should be brought to the
attention of your Lexus dealer or
qualified service shop for advice.

WARNING

If the EV system is on, turn the power

switch off and ensure that there is ade-

quate ventilation before performing

maintenance checks.

Motor compartment mainte-
nance items list

Items

Check points

Brake fluid

Is the brake fluid at

the correct level?

(



P.437)

Power control

unit/heater coolant

Is the heater/power

control unit coolant

at the correct level?

(



P.435, 436)

12-volt battery

Check the connec-

tions. (



P.438)

Radiator/condenser

The radiator and

condenser should

be free from foreign

objects. (



P.436)

Washer fluid

Is there sufficient

washer fluid?

(



P.440)

428

8-3. Maintenance

Vehicle interior mainte-
nance items list

Items

Check points

Accelerator pedal

The accelerator

pedal should move

smoothly. There

should be no uneven

pedal effort or

catching.

Transmission “Park”

mechanism

When parked on a

slope and the shift

position 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
correct amount of
free play?

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/buzzers

Do the indicators

and buzzers func-

tion properly?

Lights



Do all the lights
come on?



Are the headlights
aimed correctly?

Parking brake



Does the parking
brake switch
operate normally?



When parked on
a slope and the
parking brake is
on, is the vehicle
securely stopped?

Seat belts



Do the seat belts
operate
smoothly?



The seat belts
should not be
damaged.

Seats

Do the seat controls

operate properly?

Steering wheel



Does the steering
wheel rotate
smoothly?



Does the steering
wheel have the
correct amount of
free play?



There should not
be any strange
sounds coming
from the steering
wheel.

Items

Check points

429

8-3. Maintenance

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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 vehi-
cle.

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.

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

Vehicle exterior mainte-
nance items list

Items

Check points

Doors

Do the doors oper-

ate smoothly?

Hood

Does the motor

hood lock system

work properly?

Fluid leaks

There should not be

any signs of fluid

leakage after the

vehicle has been

parked.

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 wipers



The wiper blades
should not show
any signs of
cracking, split-
ting, wear, con-
tamination or
deformation.



The wiper blades
should clear the
windshield with-
out streaking or
skipping.

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.

When the malfunction indicator
lamp comes on

Situations your vehicle may not
pass the I/M test

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

431

8-4. Inspection of consumables

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8-4.Inspection of consumables

Items which require maintenance and
the necessary parts and tools to per-
form maintenance on those items are
as follows:

■

12-volt battery condition



Warm water



Baking soda



Grease



Conventional wrench (for terminal
clamp bolts)



Distilled water

■

Brake fluid level



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



Rag or paper towel



Funnel (used only for adding brake

Do-it-yourself service pre-
cautions

If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in the sec-
tion for each part.

WARNING

The motor 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 motor com-

partment

●

Make sure that “POWER ON” on the

multi-information display and the

“READY” indicator are both off.

●

Keep hands, clothing and tools away

from the moving fan.

●

Be careful not to touch the motor,

power control unit, radiator, etc., right

after driving as they may be hot. Cool-

ant and other fluids may also be hot.

●

Do not leave anything that may burn

easily, such as paper and rags, in the

motor compartment.

●

Do not smoke, cause sparks or expose

an open flame to the 12-volt battery.

12-volt battery fumes are flammable.

●

Never touch, disassemble, remove or

replace the high voltage parts, cables

and their connectors. It can cause

severe burns or electric shock that

may result in death or serious injury.

■

When working near the electric cool-

ing fan or radiator grille

Be sure the power switch is OFF.

With the power switch in ON, the elec-

tric cooling fan may automatically start to

run if the air conditioning is on and/or the

coolant temperature is high.

■

Safety glasses

Wear safety glasses to prevent flying or

falling material, fluid spray, etc., from get-

ting in your eyes.

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 or

when the fluid level in the accumulator is

high.

If the reservoir needs frequent refilling, it

may indicate a serious problem.

Maintenance

432

8-4. Inspection of consumables

fluid)

■

Heater coolant level



“Toyota Super Long Life Coolant” or
a similar high quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology “Toyota Super Long Life
Coolant” is premixed with 50%
coolant and 50% deionized water.



Funnel (used only for adding cool-
ant)

■

Power control unit coolant level



In order to ensure maximum perfor-
mance of the traction battery cool-
ing system and limit risks of battery
short-circuit and other damage to
your vehicle, Toyota recommends
using “Toyota Genuine Traction Bat-
tery Coolant” or similar high-quality
ethylene glycol-based, low electric
conductivity coolant, non-amine
and non-borate coolant with azole
additives.



Funnel (used only for adding cool-
ant)

■

Fuses

Fuse with same amperage rating as
original

■

Headlight aim

Phillips-head screwdriver

■

Radiator and condenser

■

Tire inflation pressure



Tire pressure gauge



Compressed air source

■

Washer fluid



Water or washer fluid containing
antifreeze (for winter use)



Funnel (used only for adding water
or washer fluid)

433

8-4. Inspection of consumables

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Pull the hood lock release lever.

The hood will pop up slightly.

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

Hold the hood open by inserting
the supporting rod into the slot.

Opening the hood

WARNING

■

Pre-driving check

Check that the hood is fully closed and

locked.

If the hood is not locked properly, the

hood may suddenly open while driving.

■

After installing the support rod into

the slot

Make sure the rod is properly inserted

into the slot to prevent the hood from

shutting on your head or body.

■

When closing the hood

When closing the hood, take extra care

to prevent your fingers etc., from being

caught.

Lexus RZ450E (2023 year). Manual in english - page 13