Lexus UX 300e (2023 year). Manual in english

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For safety and security

1-1. For safe use

Before driving................................

For safe driving................................

Seat belts ..........................................

SRS airbags ....................................

1-2. Child safety

Airbag manual on-off system...

Riding with children .....................

Child restraint systems ...............

1-3. Emergency assistance

eCall ....................................................

1-4. Theft deterrent system

Immobilizer system .......................

Double locking system ...............

Alarm .................................................

1-1. For safe use

1-1.For safe use

Use only floor mats designed specifi-
cally for vehicles of the same model
and model year as your vehicle. Fix
them securely in place onto the carpet.

Insert the retaining hooks (clips)
into the floor mat eyelets.

Turn the upper knob of each retain-
ing hook (clip) to secure the floor
mats in place.

Always align the

marks

The shape of the retaining hooks (clips)
may differ from that shown in the illustra-

tion.

Before driving

Observe the following before start-
ing off in the vehicle to ensure
safety of driving.

Installing floor mats

WARNING

Observe the following precautions.

Failure to do so may cause the driver’s

floor mat to slip, possibly interfering with

the pedals while driving. An unexpect-

edly high speed may result or it may

become difficult to stop the vehicle. This

could lead to an accident, resulting in

death or serious injury.

When installing the driver’s floor mat

Do not use floor mats designed for

other models or different model year

vehicles, even if they are Lexus

Genuine floor mats.

Only use floor mats designed for the

driver’s seat.

Always install the floor mat securely

using the retaining hooks (clips) pro-

vided.

Do not use two or more floor mats on

top of each other.

Do not place the floor mat bottom-

side up or upside-down.

Before driving

Check that the floor mat is securely

fixed in the correct place with all the

provided retaining hooks (clips). Be

especially careful to perform this

check after cleaning the floor.

With the EV system stopped and the

shift position in P, fully depress each

pedal to the floor to make sure it does

not interfere with the floor mat.

1-1. For safe use

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Adjust the angle of the seatback so
that you are sitting straight up and
so that you do not have to lean for-
ward to steer. (



P.200)

Adjust the seat so that you can
depress the pedals fully and so that
your arms bend slightly at the
elbow when gripping the steering
wheel. (



P.200)

Lock the head restraint in place
with the center of the head restraint
closest to the top of your ears.
(



P.202)

Wear the seat belt correctly.
(



P.33)

Make sure that all occupants are wear-
ing their seat belts before driving the
vehicle. (



P.33)

Use a child restraint system appropri-
ate for the child until the child becomes
large enough to properly wear the
vehicle’s seat belt. (



P.46)

Make sure that you can see the rear of
the vehicle clearly, by adjusting the
inside and outside rear view mirrors
properly. (



P.205, 206)

For safe driving

For safe driving, adjust the seat and
mirror to an appropriate position
before driving.

Correct driving posture

WARNING

Observe the following precautions.

Failure to do so may result in death or

serious injury.

Do not adjust the position of the

driver’s seat while driving.

Doing so could cause the driver to lose

control of the vehicle.

Do not place a cushion between the

driver or passenger and the seatback.

A cushion may prevent correct pos-

ture from being achieved, and reduce

the effectiveness of the seat belt and

head restraint.

Do not place anything under the front

seats.

Objects placed under the front seats

may become jammed in the seat

tracks and stop the seat from locking

in place. This may lead to an accident

and the adjustment mechanism may

also be damaged.

Always observe the legal speed limit

when driving on public roads.

When driving over long distances,

take regular breaks before you start to

feel tired. Also, if you feel tired or

sleepy while driving, do not force your-

self to continue driving and take a

break immediately.

Correct use of the seat belts

Adjusting the mirrors

1-1. For safe use

Seat belts

Make sure that all occupants are
wearing their seat belts before driv-
ing the vehicle.

WARNING

Observe the following precautions to

reduce the risk of injury in the event of

sudden braking, sudden swerving or an

accident.

Failure to do so may cause death or seri-

ous injury.

Wearing a seat belt

Ensure that all passengers wear a seat

belt.

Always wear a seat belt properly.

Each seat belt should be used by one

person only. Do not use a seat belt for

more than one person at once, includ-

ing children.

Lexus recommends that children be

seated in the rear seat and always use

a seat belt and/or an appropriate child

restraint system.

To achieve a proper seating position,

do not recline the seat more than nec-

essary. The seat belt is most effective

when the occupants are sitting up

straight and well back in the seats.

Do not wear the shoulder belt under

your arm.

Always wear your seat belt low and

snug across your hips.

Pregnant women

Obtain medical advice and wear the seat

belt in the proper way. (



P.33)

Women who are pregnant should posi-

tion the lap belt as low as possible over

the hips in the same manner as other

occupants, extending the shoulder belt

completely over the shoulder and avoid-

ing belt contact with the rounding of the

abdominal area.
If the seat belt is not worn properly, not

only the pregnant woman, but also the

fetus could suffer death or serious injury

as a result of sudden braking or a colli-

sion.

People suffering illness

Obtain medical advice and wear the seat

belt in the proper way. (



P.33)

When children are in the vehicle



P.57

Seat belt damage and wear

Do not damage the seat belts by allow-

ing the belt, plate, or buckle to be

jammed in the door.

1-1. For safe use

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

Extend the shoulder belt so that it
comes fully over the shoulder, but
does not come into contact with the
neck or slide off the shoulder.



Position the lap belt as low as possi-
ble over the hips.



Adjust the position of the seatback.
Sit up straight and well back in the
seat.



Do not twist the seat belt.

Child seat belt usage

The seat belts of your vehicle were princi-

pally designed for persons of adult size.

Use a child restraint system appropriate

for the child, until the child becomes large

enough to properly wear the vehicle’s

seat belt. (



P.46)

When the child becomes large enough to

properly wear the vehicle’s seat belt, fol-

low the instructions regarding seat belt

usage. (



P.32)

Seat belt regulations

If seat belt regulations exist in the country

where you reside, please contact any

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer for

seat belt replacement or installation.

To fasten the seat belt, push the
plate into the buckle until a click

WARNING

Inspect the seat belt system periodi-

cally. Check for cuts, fraying, and

loose parts. Do not use a damaged

seat belt until it is replaced. Damaged

seat belts cannot protect an occupant

from death or serious injury.

Ensure that the belt and plate are

locked and the belt is not twisted.

If the seat belt does not function cor-

rectly, immediately contact any autho-

rized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

Replace the seat assembly, including

the belts, if your vehicle has been

involved in a serious accident, even if

there’s no obvious damage.

Do not attempt to install, remove,

modify, disassemble or dispose of the

seat belts. Have any necessary repairs

carried out by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer. Inappropriate

handling may lead to incorrect opera-

tion.

Correct use of the seat belts

Fastening and releasing the seat
belt

1-1. For safe use

sound is heard.

To release the seat belt, press the
release button

Emergency locking retractor (ELR)

The retractor will lock the belt during a sud-

den stop or on impact. It may also lock if you

lean forward too quickly. A slow, easy

motion will allow the belt to extend so that

you can move around fully.

Push the seat belt shoulder anchor
down while pressing the release
button .

Push the seat belt shoulder anchor
up.

Move the height adjuster up and down as
needed until you hear a click.

The pretensioners help the seat belts to
quickly restrain the occupants by
retracting the seat belts when the vehi-
cle is subjected to certain types of
severe frontal or side collision.

The pretensioners do not activate in the
event of a minor frontal impact, a minor
side impact, a rear impact or a vehicle roll-
over.

Replacing the belt after the preten-

sioner has been activated

If the vehicle is involved in multiple colli-

sions, the pretensioner will activate for the

first collision, but will not activate for the

second or subsequent collisions.

PCS-linked seat belt pretensioner con-

trol

If the PCS (Pre-Collision System) deter-

mines that the possibility of a collision with a

vehicle is high, the seat belt pretensioners

will be prepared to operate.

Adjusting the seat belt shoulder
anchor height (front seats)

WARNING

Adjustable shoulder anchor

Always make sure the shoulder belt is

positioned across the center of your

shoulder. The belt should be kept away

from your neck, but not falling off your

shoulder. Failure to do so could reduce

the amount of protection in an accident

and cause death or serious injuries in the

event of a sudden stop, sudden swerve

or accident.

Seat belt pretensioners (front
and outboard rear seats)

1-1. For safe use

Location of the SRS airbags



SRS front airbags

SRS driver airbag/front passenger airbag

Can help protect the head and chest of the driver and front passenger from impact with
interior components

SRS knee airbags

Can help provide driver and front passenger protection



SRS side and curtain shield airbags

SRS side airbags

Can help protect the torso of the front seat occupants

SRS curtain shield airbags

Can help protect primarily the head of occupants in the outer seats

SRS airbags

The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They work
together with the seat belts to help reduce the risk of death or serious injury.

SRS airbag system

1-1. For safe use

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SRS airbag system components

Front passenger airbag

Curtain shield airbags

Side airbags

“PASSENGER AIR BAG” indicator lights

Side impact sensors (rear)

SRS warning light

Driver airbag

Side impact sensors (front door)

Seat belt pretensioners and force limiters

Driver’s seat position sensor

Knee airbags

Driver’s seat belt buckle switch

Front passenger’s seat belt buckle switch

Front impact sensors

Airbag sensor assembly

Airbag manual on-off switch

Side impact sensors (front)

The main SRS airbag system components are shown above. The SRS airbag sys-

A
B
C
D

E
F

N
O

1-1. For safe use

tem is controlled by the airbag sensor assembly. As the airbags deploy, a chemical
reaction in the inflators quickly fills the airbags with non-toxic gas to help restrain
the motion of the occupants.

If the SRS airbags deploy (inflate)

Slight abrasions, burns, bruising etc., may

be sustained from SRS airbags, due to the

extremely high speed deployment (infla-

tion) by hot gases.

A loud noise and white powder will be

emitted.

Parts of the airbag module (steering

wheel hub, airbag cover and inflator) as

well as the front seats, parts of the front

and rear pillars, and roof side rails, may

be hot for several minutes. The airbag

itself may also be hot.

The windshield may crack.

The EV system will be stopped. (



P.84)

All of the doors will be unlocked.

(



P.179)

The brakes and stop lights will be con-

trolled automatically. (



P.328)

The interior lights will turn on automati-

cally. (



P.362)

The emergency flashers will turn on auto-

matically. (



P.424)

If any of the following situations occur, the

system is designed to send an emergency

call to the eCall control center, notifying

them of the vehicle’s location (without

needing to push the “SOS” button) and

an agent will attempt to speak with the

occupants to ascertain the level of emer-

gency and assistance required. If the

occupants are unable to communicate,

the agent automatically treats the call as

an emergency and helps to dispatch the

necessary emergency services. (



P.61)

• An SRS airbag is deployed.

• A seat belt pretensioner is activated.

• The vehicle is involved in a severe rear-

end collision.

SRS airbag deployment conditions (SRS

front airbags)

The SRS front airbags will deploy in the

event of an impact that exceeds the set

threshold level (the level of force corre-

sponding to an approximately 20 - 30

km/h [12 - 18 mph] frontal collision with a

fixed wall that does not move or deform).

However, this threshold velocity will be

considerably higher in the following situ-

ations:

• If the vehicle strikes an object, such as a

parked vehicle or sign pole, which can

move or deform on impact

• If the vehicle is involved in an underride

collision, such as a collision in which the

front of the vehicle underrides, or goes

under, the bed of a truck

Depending on the type of collision, it is

possible that only the seat belt preten-

sioners will activate.

SRS airbag deployment conditions (SRS

side and curtain shield airbags)

The SRS side and curtain shield airbags

will deploy in the event of an impact that

exceeds the set threshold level (the level

of force corresponding to the impact

force produced by an approximately

1500 kg [3300 lb.] vehicle colliding with

the vehicle cabin from a direction per-

pendicular to the vehicle orientation at an

approximate speed of 20 - 30 km/h [12 -

18 mph]).

Both SRS curtain shield airbags may

deploy in the event of a severe side colli-

sion.

Both SRS curtain shield airbags may also

deploy in the event of a severe frontal

collision.

Conditions under which the SRS air-

bags may deploy (inflate), other than a

collision

The SRS front airbags and SRS curtain

shield airbags may also deploy if a serious

impact occurs to the underside of your

vehicle. Some examples are shown in the

illustration.

Hitting a curb, edge of pavement or hard

1-1. For safe use

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surface

Falling into or jumping over a deep hole

Landing hard or falling

Types of collisions that may not deploy

the SRS airbags (SRS front airbags)

The SRS front airbags do not generally

inflate if the vehicle is involved in a side or

rear collision, if it rolls over, or if it is involved

in a low-speed frontal collision. But, when-

ever a collision of any type causes sufficient

forward deceleration of the vehicle, deploy-

ment of the SRS front airbags may occur.

Collision from the side

Collision from the rear

Vehicle rollover

Types of collisions that may not deploy

the SRS airbags (SRS side and curtain

shield airbags)

The SRS side and curtain shield airbags

may not activate if the vehicle is subjected

to a collision from the side at certain angles,

or a collision to the side of the vehicle body

other than the passenger compartment.

Collision from the side to the vehicle

body other than the passenger compart-

ment

Collision from the side at an angle

The SRS side airbags do not generally

inflate if the vehicle is involved in a frontal or

rear collision, if it rolls over, or if it is involved

in a low-speed side collision.

Collision from the front

Collision from the rear

Vehicle rollover

The SRS curtain shield airbags do not gen-
erally inflate if the vehicle is involved in a
rear collision, if it rolls over, or if it is involved
in a low-speed side or low-speed frontal
collision.

Collision from the rear

Vehicle rollover

When to contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer

In the following cases, the vehicle will

require inspection and/or repair. Contact

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer

1-1. For safe use

as soon as possible.

Any of the SRS airbags have been

inflated.

The front of the vehicle is damaged or

deformed, or was involved in an accident

that was not severe enough to cause the

SRS front airbags to inflate.

A portion of a door or its surrounding

area is damaged, deformed or has had a

hole made in it, or the vehicle was

involved in an accident that was not

severe enough to cause the SRS side and

curtain shield airbags to inflate.

The pad section of the steering wheel,

dashboard near the front passenger air-

bag or lower portion of the instrument

panel is scratched, cracked, or otherwise

damaged.

The surface of the seats with the SRS side

airbag is scratched, cracked, or other-

wise damaged.

The portion of the front pillars, rear pillars

or roof side rail garnishes (padding) con-

taining the SRS curtain shield airbags

inside is scratched, cracked, or otherwise

damaged.

WARNING

SRS airbag precautions

Observe the following precautions

regarding the SRS airbags.

Failure to do so may cause death or seri-

ous injury.

The driver and all passengers in the

vehicle must wear their seat belts

properly.

The SRS airbags are supplemental

devices to be used with the seat belts.

1-1. For safe use

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WARNING

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.

Since the risk zone for the driver’s air-

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

inflation, placing yourself 250 mm (10

in.) 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 breast-

bone. If you sit less than 250 mm (10

in.) away now, you can change your

driving position in several ways:

• Move your seat to the rear as far as

you can while still reaching the pedals

comfortably.

• Slightly recline the back of the seat.

Although vehicle designs vary, many

drivers can achieve the 250 mm (10

in.) distance, even with the driver seat

all the way forward, simply by reclining

the back of the seat somewhat. If

reclining the back of your seat makes it

hard to see the road, raise yourself by

using a firm, non-slippery 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 recom-

mended above, while still maintaining

control of the foot pedals, steering wheel,

and your view of the instrument panel

controls.

The SRS front passenger airbag also

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 as far from the air-

bag as possible with the seatback

adjusted, so the front passenger sits

upright.

Improperly seated and/or restrained

infants and children can be killed or

seriously injured by a deploying air-

bag. 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.46)

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 unit or

sit on the knees of a front passenger.

Do not allow the front seat occupants

to hold items on their knees.

Do not lean against the door, the roof

side rail or the front, side and rear pil-

lars.

1-1. For safe use

WARNING

Do not allow anyone to kneel on the

passenger seat toward the door or put

their head or hands outside the vehi-

cle.

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.

These items can become projectiles

when the SRS driver, front passenger

and knee airbags deploy.

Do not attach anything to areas such

as a door, windshield, side window,

front or rear pillar, roof side rail and

assist grip. (Except for the speed limit

label



P.448)

Do not hang coat hangers or other

hard objects on the coat hooks. All of

these items could become projectiles

and may cause death or serious injury,

should the SRS curtain shield airbags

deploy.

If a vinyl cover is put on the area where

the SRS knee airbag will deploy, be

sure to remove it.

Do not use seat accessories which

cover the parts where the SRS side air-

bags inflate as they may interfere with

inflation of the SRS airbags. Such

accessories may prevent the side air-

bags from activating correctly, disable

the system or cause the side airbags to

inflate accidentally, resulting in death

or serious injury.

Do not strike or apply significant levels

of force to the area of the SRS airbag

components or the front doors.

Doing so can cause the SRS airbags to

malfunction.

Do not touch any of the component

parts immediately after the SRS air-

bags 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 the areas where the SRS airbags are

stored, such as the steering wheel pad

and front and rear pillar garnishes, are

damaged or cracked, have them

replaced by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

1-1. For safe use

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WARNING

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 any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer. The SRS airbags

may malfunction or deploy (inflate) acci-

dentally, causing death or serious injury.

Installation, removal, disassembly and

repair of the SRS airbags

Repairs, modifications, removal or

replacement of the steering wheel,

instrument panel, dashboard, seats or

seat upholstery, front, side and rear pil-

lars, roof side rails, front door panels,

front door trims or front door speakers

Modifications to the front door panel

(such as making a hole in it)

Repairs or modifications of the front

fender, front bumper, or side of the

occupant compartment

Installation of a grille guard (bull bars,

kangaroo bar, etc.), snow plows or

winches

Modifications to the vehicle’s suspen-

sion system

Installation of electronic devices such

as RF-transmitter and CD players

1-2. Child safety

1-2.Child safety

“PASSENGER AIR BAG” indica-
tor

“PASSENGER AIR BAG” and “ON” indi-
cator light turn on when the airbag system
is on, and about after 60 seconds they go
off (only when the power switch is in ON).

Airbag manual on-off switch

Insert the mechanical key into the cyl-
inder and turn to the “OFF” position.

The “OFF” indicator light turns on (only
when the power switch is in ON).

“PASSENGER AIR BAG” indicator

information

If any of the following problems occur, it is

possible that there is a malfunction in the

system. Have the vehicle inspected by any

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer.

The “OFF” indicator does not illuminate

when the airbag manual on-off switch is

set to “OFF”.

The indicator light does not change when

the airbag manual on-off switch is

switched to “ON” or “OFF”.

Airbag manual on-off system

This system deactivates the front
passenger airbag and front passen-
ger knee airbag.
Only deactivate the airbags when
using a child restraint system on the
front passenger seat.

System components

Deactivating the airbags for the
front passenger

WARNING

When installing a child restraint sys-

tem

For safety reasons, always install a child

restraint system in a rear seat. In the

event that the rear seat cannot be used,

the front seat can be used as long as the

airbag manual on-off system is set to

“OFF”.

If the airbag manual on-off system is left

on, the strong impact of the airbag

deployment (inflation) may cause serious

injury or even death.

1-2. Child safety

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WARNING

When a child restraint system is not

installed on the front passenger seat

Ensure that the airbag manual on-off sys-

tem is set to “ON”.

If it is left off, the airbag may not deploy in

the event of an accident, which may

result in serious injury or even death.

Riding with children

Observe the following precautions
when children are in the vehicle.
Use a child restraint system appro-
priate for the child, until the child
becomes large enough to properly
wear the vehicle’s seat belt.



It is recommended that children
sit in the rear seats to avoid acci-
dental contact with the shift lever,
wiper switch, etc.



Use the rear door child-protector
lock or the window lock switch to
avoid children opening the door
while driving or operating the
power window accidentally.
(



P.181, 210)



Do not let small children operate
equipment which may catch or
pinch body parts, such as the
power window, hood, back door,
seats, etc.

WARNING

When children are in the vehicle

Never leave children unattended in the

vehicle, and never allow children to have

or use the key.
Children may be able to start the vehicle

or shift the vehicle into neutral. There is

also a danger that children may injure

themselves by playing with the windows,

the moon roof (if equipped) or other fea-

tures of the vehicle. In addition, heat

build-up or extremely cold tempera-

tures inside the vehicle can be fatal to

children.

1-2. Child safety

Points to remember: P.46
When using a child restraint system:
P.47
Child restraint system compatibility for
each seating position: P.50
Child restraint system installation
method: P.55
• Fixed with a seat belt: P.56
• Fixed with an ISOFIX lower anchor-

age: P.58

• Using a top tether anchorage: P.59



Prioritize and observe the warnings,
as well as the laws and regulations
for child restraint systems.



Use a child restraint system until the
child becomes large enough to
properly wear the vehicle’s seat
belt.



Choose a child restraint system
appropriate to the age and size of
the child.



Note that not all child restraint sys-
tems can fit in all vehicles.
Before using or purchasing a child
restraint system, check the compati-
bility of the child restraint system
with seat positions.

Child restraint systems

Before installing a child restraint
system in the vehicle, there are pre-
cautions that need to be observed,
different types of child restraint sys-
tems, as well as installation meth-
ods, etc., written in this manual.



Use a child restraint system when
riding with a small child that can-
not properly use a seat belt. For
the child’s safety, install the child
restraint system to a rear seat. Be
sure to follow the installation
method that is in the operation
manual enclosed with the
restraint system.



The use of a Lexus genuine child
restraint system is recommended,
as it is safer to use in this vehicle.
Lexus genuine child restraint sys-
tems are made specifically for
Lexus vehicles. They can be pur-
chased at a Lexus dealer.

Table of contents

Points to remember

WARNING

When a child is riding

Observe the following precautions.

Failure to do so may result in death or

serious injury.

For effective protection in automobile

accidents and sudden stops, a child

must be properly restrained, using a

seat belt or child restraint system

which is correctly installed. For instal-

lation details, refer to the operation

manual enclosed with the child

restraint system. General installation

instruction is provided in this manual.

1-2. Child safety

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When installing a child restraint
system to the front passenger seat

For the safety of a child, install a child
restraint system to a rear seat. When
installing a child restraint system to the
front passenger seat is unavoidable,
adjust the seat as follows and install the
child restraint system:



Adjust the seatback angle to the
most upright position.

When installing a forward-facing child
seat, if there is a gap between the child seat
and the seatback, adjust the seatback
angle until good contact is achieved.



Move the front seat fully rearward.



Adjust the seat height to the upper-
most position.



Adjust the front of the seat cushion
to the lowest position.



If the head restraint interferes with
the child restraint system installation
and the head restraint can be
removed, remove the head
restraint. Otherwise, put the head
restraint in the upper most position.

WARNING

Lexus strongly urges the use of a

proper child restraint system that con-

forms to the weight and size of the

child, installed on the rear seat.

According to accident statistics, the

child is safer when properly restrained

in the rear seat than in the front seat.

Holding a child in your or someone

else’s arms is not a substitute for a child

restraint system. In an accident, the

child can be crushed against the wind-

shield or between the holder and the

interior of the vehicle.

Handling the child restraint system

If the child restraint system is not prop-

erly fixed in place, the child or other pas-

sengers may be seriously injured or even

killed in the event of sudden braking,

sudden swerving, or an accident.

If the vehicle were to receive a strong

impact from an accident, etc., it is pos-

sible that the child restraint system has

damage that is not readily visible. In

such cases, do not reuse the restraint

system.

Depending on the child restraint sys-

tem, installation may be difficult or

impossible. In those cases, check

whether the child restraint system is

suitable for installment in the vehicle.

(



P.50) Be sure to install and

observe the usage rules after carefully

reading the child restraint system fix-

ing method in this manual, as well as

the operation manual enclosed with

the child restraint system.

Keep the child restraint system prop-

erly secured on the seat even if it is not

in use. Do not store the child restraint

system unsecured in the passenger

compartment.

If it is necessary to detach the child

restraint system, remove it from the

vehicle or store it securely in the lug-

gage compartment.

When using a child restraint sys-
tem

1-2. Child safety

WARNING

When using a child restraint system

Observe the following precautions.

Failure to do so may result in death or

serious injury.

Never use a rear-facing child restraint

system on the front passenger seat

when the airbag manual on-off switch

is on. (



P.202)

The force of the rapid inflation of the

front passenger airbag can cause

death or serious injury to children in

the event of an accident.

There is a label(s) on the passenger

side sun visor, indicating it is forbidden

to attach a rear-facing child restraint

system to the front passenger seat.

Details of the label(s) are shown in the

illustration below.

1-2. Child safety

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WARNING

Only put a forward-facing child

restraint system on the front seat when

unavoidable. When installing a for-

ward-facing child restraint on the front

passenger seat, move the seat as far

back as possible. Failing to do so may

result in death or serious injury if the

airbags deploy (inflate).

Do not allow the child to lean his/her

head or any part of his/her body

against the door or the area of the seat,

front or rear pillars, or roof side rails

from which the SRS side airbags or

SRS curtain shield airbags deploy even

if the child is seated in the child

restraint system. It is dangerous if the

SRS side and curtain shield airbags

inflate, and the impact could cause

death or serious injury to the child.

When a junior seat is installed, always

ensure that the shoulder belt is posi-

tioned across the center of the child’s

shoulder. The belt should be kept away

from the child’s neck, but not so that it

could fall off the child’s shoulder.

Use a child restraint system suitable to

the age and size of the child and install

it to the rear seat.

1-2. Child safety

Child restraint system compatibil-
ity for each seating position

Compatibility of each seating position
with child restraint systems (



P.51)

displays the type of child restraint sys-
tems that can be used and possible
seating positions for installation using
symbols.
Also, the recommended child restraint
system that is suitable for your child
can be selected. Otherwise, check
“Recommended child restraint sys-
tems and Compatibility table” for rec-
ommended child restraint systems.
(



P.54)

Check the selected child restraint sys-
tem together with the following
“Before confirming the compatibility of
each seating position with child
restraint systems”.

Before confirming the compatibil-
ity of each seating position with
child restraint systems

Check the child restraint system
standards.
Use a child restraint system that
conforms to UN(ECE) R44

UN(ECE) R129

*1, 2

The following approval mark is dis-
played on child restraint systems
which are conformed.
Check for an approval mark
attached to the child restraint sys-
tem.

Example of the displayed regulation Num-
ber

UN(ECE) R44 approval mark

The weight range of the child who is
applicable for an UN(ECE) R44
approval mark is indicated.

UN(ECE) R129 approval mark

The height range of the child who is
applicable as well as available
weights for an UN(ECE) R129
approval mark is indicated.

WARNING

If the driver’s seat interferes with the

child restraint system and prevents it

from being attached correctly, attach

the child restraint system to the right-

hand rear seat (left-hand drive vehi-

cles) or the left-hand rear seat (right-

hand drive vehicles). (



P.54)

Child restraint system compati-
bility for each seating position

1-2. Child safety

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Check the category of the child
restraint system.
Check the approval mark of the
child restraint system for which of
the following categories the child
restraint system is suitable.
Also, if there are any uncertainties,
check the user’s guide included
with the child restraint system or
contact the retailer of the child
restraint system.

• “universal”
• “semi-universal”
• “restricted”
• “vehicle specific”

: UN(ECE) R44 and UN(ECE) R129

are U.N. regulations for child restraint
systems.

: The child restraint systems mentioned

in the table may not be available outside
of the EU area.

: The displayed mark may differ depend-

ing on the product.

Compatibility of each seating posi-
tion with child restraint systems



Left-hand drive vehicles



Right-hand drive vehicles

*1, 2, 3, 5

1-2. Child safety

: Move the front seat fully rearward. If the

passenger seat height can be adjusted,
move it to the upper most position.

: Adjust the seatback angle to the most

upright position. When installing a for-
ward-facing child seat, if there is a gap
between the child seat and the seat-
back, adjust the seatback angle until
good contact is achieved.

: If the head restraint interferes with your

child restraint system, and the head
restraint can be removed, remove the
head restraint.
Otherwise, put the head restraint in the
upper most position.

: Use only a front-facing child restraint

system when the airbag manual on-off
switch is on.

: Not suitable for child restraint systems

with support leg.

Suitable for “universal” category
child restraint system fixed with
the seat belt.
Suitable for child restraint sys-
tems given on recommended
child restraint systems and com-
patibility table (



P. 54).

Suitable for i-Size and ISOFIX
child restraint system.

Includes a top tether anchorage
point.
Never use a rear-facing child
restraint system on the front pas-
senger seat when the airbag man-
ual on-off switch is on.

1-2. Child safety

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Detail information for child restraint systems installation

ISOFIX child restraint systems are divided into different “fixture”. The child
restraint system can be used in the seating positions for “fixture” mentioned in the
table above. For kind of “fixture” relation, confirm the following table.
If your child restraint system has no kind of “fixture” (or if you cannot find informa-
tion in the table below), please refer to the child restraint system “vehicle list” for
compatibility information or ask the retailer of your child seat.

Seat position number

Seating position

Airbag manual on-

off switch

OFF

Seating position suitable for

universal belted (Yes/No)

All universal categories

(group 0, 0+, I, II, and III)

Yes

For-

ward-
facing

only

Yes

i-Size seating position

(Yes/No)

Yes

Seating position suitable for

lateral fixture (L1/L2/No)

Suitable rearward facing fix-

ture (R1/R2X/R2/R3/No)

R1, R2

Suitable forward facing fix-

ture (F2X/F2/F3/No)

F2X, F2,

Suitable junior seat fixture

(B2/B3/No)

B2, B3

Fixture

Description

Full-height, forward-facing child restraint systems

Reduced-height forward-facing child restraint systems

F2X

Reduced-height forward-facing child restraint systems

Full-size, rearward-facing child restraint systems

1-2. Child safety

Recommended child restraint systems and Compatibility table

The child restraint systems mentioned in the table may not be available outside the
EU countries and United Kingdom.
When securing some types of child
restraint systems in rear seat, it may not
be possible to properly use the seat

belts in positions next to the child
restraint without interfering with it or
affecting seat belt effectiveness. Be

Reduced-size, rearward-facing child restraint systems

R2X

Reduced-size, rearward-facing child restraint systems

Rearward-facing infant seat

Left lateral-facing (carrycot) infant seat

Right lateral-facing (carrycot) infant seat

Junior seat

Mass groups

Recommended Child

Restraint System

Seating position

Airbag manual

on-off switch

OFF

0, 0+
Up to 13 kg
(28 lb.)

LEXUS G0+, BABY SAFE
PLUS (Yes/No)

Yes

I
9 to 18 kg
(20 to 39 lb.)

LEXUS DUO PLUS
(Yes/No)

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

II, III
15 to 36 kg
(34 to 79 lb.)

LEXUS KIDFIX XP SICT
(Yes/No)

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

LEXUS MAXI PLUS
(Yes/No)

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

Belt Fix

Only

Yes

Fixture

Description

1-2. Child safety

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sure your seat belt fits snugly across
your shoulder and low on your hips. If it
does not, or if it interferes with the child
restraint, move to a different position.
Failure to do so may result in death or
serious injury.



When installing a child restraint in
the rear seats, adjust the front seat
so that it does not interfere with the
child or child restraint system.



When installing a child seat with
support base, if the child seat inter-
feres with the seatback when latch-
ing it into the support base, adjust
the seatback rearward until there is
no interference.



If the seat belt shoulder anchor is
ahead of the child seat belt guide,

move the seat cushion forward.



When installing a junior seat, if the
child in your child restraint system is
in a very upright position, adjust the
seatback angle to the most comfort-
able position. And if the seat belt
shoulder anchor is ahead of the
child seat belt guide, move the seat
cushion forward.

Confirm with the operation manual enclosed with the child restraint system about
the installation of the child restraint system.

Child restraint system installation method

1-2. Child safety

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unavoidable, refer to P.47 for front
passenger seat adjustment.

If the head restraint interferes with
the child restraint system and the
head restraint can be removed,
remove the head restraint. Other-
wise, put the head restraint in the
upper most position. (



P.202)

Run the seat belt through the child
restraint system and insert the plate
into the buckle. Make sure that the
belt is not twisted. Securely fix the
seat belt to the child restraint sys-
tem in accordance to the directions
enclosed with the child restraint
system.

If your child restraint system is not
equipped with a lock-off (a seat belt
locking feature), secure the child
restraint system using a locking
clip.

After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
(



P.58)

Removing a child restraint system
installed with a seat belt

Press the buckle release button and
fully retract the seat belt.

When releasing the buckle, the child
restraint system may spring up due to the
rebound of the seat cushion. Release the
buckle while holding down the child
restraint system.
Since the seat belt automatically reels itself,
slowly return it to the stowing position.

When installing a child restraint system

You may need a locking clip to install the

child restraint system. Follow the instruc-

tions provided by the manufacturer of the

system. If your child restraint system does

not provide a locking clip, you can purchase

the following item from any authorized

Lexus retailer or Lexus authorized repairer,

or any reliable repairer: Locking clip for

child restraint system

(Part No. 73119-22010)

WARNING

When installing a child restraint sys-

tem

Observe the following precautions.

Failure to do so may result in death or

serious injury.

Do not allow children to play with the

seat belt. If the seat belt becomes

twisted around a child’s neck, it may

lead to choking or other serious inju-

ries that could result in death. If this

occurs and the buckle cannot be

unfastened, scissors should be used to

cut the belt.

1-2. Child safety

ISOFIX lower anchorages (ISO-
FIX child restraint system)

Lower anchorages are provided for
the outboard rear seats. (Marks dis-
playing the location of the anchorages
are attached to the seats.)

Installation with ISOFIX lower
anchorage (ISOFIX child restraint
system)

Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.
If the child restraint system on hand is
not within the “universal” category (or
the necessary information is not in the
table), refer to the “Vehicle List” pro-
vided by the child restraint system
maker for various possible installation
positions, or check the compatibility
after asking the retailer of the child
seat. (



P.50)

If the head restraint interferes with
the child restraint system and the
head restraint can be removed,
remove the head restraint. Other-
wise, put the head restraint in the
upper most position. (



P.202)

Remove the anchorage covers, and
install the child restraint system to
the seat.

The bars are installed behind the anchor-

WARNING

Ensure that the belt and plate are

securely locked and the seat belt is not

twisted.

Shake the child restraint system left

and right, and forward and backward

to ensure that it has been securely

installed.

After securing a child restraint system,

never adjust the seat.

When a junior seat is installed, always

ensure that the shoulder belt is posi-

tioned across the center of the child’s

shoulder. The belt should be kept away

from the child’s neck, but not so that it

could fall off the child’s shoulder.

Follow all installation instructions pro-

vided by the child restraint system

manufacturer.

Child restraint system fixed with
an ISOFIX lower anchorage

1-2. Child safety

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age covers.

After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
(



P.58)

Top tether anchorages

Top tether anchorages are provided
for the outboard rear seats.

Use top tether anchorages when fixing
the top strap.

Top tether anchorages

Top strap

Fixing the top strap to the top
tether anchorage

Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.

If the head restraint interferes with
the child restraint system and the
head restraint can be removed,
remove the head restraint. Other-
wise, put the head restraint in the
upper most position. (



P.202)

WARNING

When installing a child restraint sys-

tem

Observe the following precautions.

Failure to do so may result in death or

serious injury.

After securing a child restraint system,

never adjust the seat.

When using the lower anchorages, be

sure that there are no foreign objects

around the anchorages and that the

seat belt is not caught behind the child

restraint system.

Follow all installation instructions pro-

vided by the child restraint system

manufacturer.

Using a top tether anchorage

A
B

1-2. Child safety

Latch the hook onto the top tether
anchorage and tighten the top
strap.

Make sure the top strap is securely

latched. (



P.58)

When installing the child restraint system

with the head restraint raised, be sure to

have the top strap pass underneath the

head restraint.

Top strap

Hook

WARNING

When installing a child restraint sys-

tem

Observe the following precautions.

Failure to do so may result in death or

serious injury.

Firmly attach the top strap and make

sure that the belt is not twisted.

Do not attach the top strap to anything

other than the top tether anchorage.

After securing a child restraint system,

never adjust the seat.

Follow all installation instructions pro-

vided by the child restraint system

manufacturer.

A
B

When installing the child restraint sys-

tem with the head restraint being

raised, after the head restraint has

been raised and then the top tether

anchorage has been fixed, do not

lower the head restraint.

Lexus UX 300e (2023 year). Manual in english - page 1