LEXUS RX 450HL (2019 year). Instruction

1-1. For safe use

RX450h_RX450hL_U

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Adult

■

Child

Condition and operation in the front passenger occupant classification
system

Indicator/

warning light

“AIR BAG ON” and “AIR BAG OFF”

indicator lights

“AIR BAG ON”

SRS warning light

Off

Seat belt reminder light

Off

flashing

Devices

Front passenger airbag

Activated

Side airbag on the front passenger seat

Curtain shield airbag in the front passenger side

Seat cushion airbag in the front passenger side

Activated

deactivated

Front passenger’s seat belt pretensioner and force

limiter

Activated

Indicator/

warning light

“AIR BAG ON” and “AIR BAG OFF”

indicator lights

“AIR BAG

OFF” or “AIR
BAG ON”

SRS warning light

Off

Seat belt reminder light

Off

flashing

Devices

Front passenger airbag

Deactivated or

activated

Side airbag on the front passenger seat

Activated

Curtain shield airbag in the front passenger side

Seat cushion airbag in the front passenger side

Deactivated or

activated

4, 2

Front passenger’s seat belt pretensioner and force

limiter

Activated

1-1. For safe use

For safety

and security

RX450h_RX450hL_U

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Child restraint system with infant

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Unoccupied

Indicator/

warning light

“AIR BAG ON” and “AIR BAG OFF”

indicator lights

“AIR BAG

OFF”

SRS warning light

Off

Seat belt reminder light

Off

flashing

Devices

Front passenger airbag

Deactivated

Side airbag on the front passenger seat

Activated

Curtain shield airbag in the front passenger side

Seat cushion airbag in the front passenger side

Deactivated

Front passenger’s seat belt pretensioner and force

limiter

Activated

Indicator/

warning light

“AIR BAG ON” and “AIR BAG OFF”

indicator lights

“AIR BAG

OFF”

SRS warning light

Off

Seat belt reminder light

Devices

Front passenger airbag

Deactivated

Side airbag on the front passenger seat

Activated

Curtain shield airbag in the front passenger side

Seat cushion airbag in the front passenger side

Deactivated

Front passenger’s seat belt pretensioner and force

limiter

Activated

1-1. For safe use

RX450h_RX450hL_U

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There is a malfunction in the system

: 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 him/her as an adult depending on
his/her 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

system may not recognize him/her as a child. Factors which may affect this can be the
physique 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. 55)

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

child restraint system properly. (

P. 57)

Indicator/

warning light

“AIR BAG ON” and “AIR BAG OFF”

indicator lights

“AIR BAG

OFF”

SRS warning light

Seat belt reminder light

Devices

Front passenger airbag

Deactivated

Side airbag on the front passenger seat

Activated

Curtain shield airbag in the front passenger side

Seat cushion airbag in the front passenger side

Deactivated

Front passenger’s seat belt pretensioner and force

limiter

Activated

1-1. For safe use

For safety

and security

RX450h_RX450hL_U

WARNING

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Front passenger occupant classification system precautions
Observe the following precautions regarding the front passenger occupant classifica-

tion 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.

●

Make sure the “AIR BAG OFF” indicator light is not illuminated when using the seat

belt extender for the front passenger seat. If the “AIR BAG OFF” indicator light is illu-

minated, disconnect 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 illuminated, 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).

●

Do not put weight on the front passenger 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 passenger seat.

1-1. For safe use

RX450h_RX450hL_U

WARNING

■

Front passenger occupant classification system precautions

●

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 effec-

tiveness of the seat belt system.

●

If an adult sits in the front passenger seat, the “AIR BAG ON” indicator light is illumi-

nated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger 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 illuminated, 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 forward-facing child restraint system on the front

passenger seat, install the child restraint system on the front passenger seat in the

proper order. (

P. 57)

●

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 passenger

occupant classification system. In this case, contact your Lexus dealer immediately.

●

Child restraint systems installed on the rear seat should not contact the front seat-

backs.

●

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 upholstery of the front seat.

●

Adjust the front passenger seat so that the head restraint does not touch the ceiling. If

the head restraint is left in contact with the ceiling, the system may not detect the front

passenger properly, leading to improper operation of the airbags.

1-1. For safe use

For safety

and security

RX450h_RX450hL_U

Exhaust gas precautions

Harmful substance to the human body is contained in exhaust gases if inhaled.

WARNING

Exhaust gases contain harmful carbon monoxide (CO), which is colorless and odorless.

Observe the following precautions.

Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident

caused by light-headedness, or may lead to death or a serious health hazard.

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Important points while driving

●

Keep the back door closed.

●

If you smell exhaust gases in the vehicle even when the back door is closed, open the

windows and have the vehicle inspected at your Lexus dealer as soon as possible.

■

When parking

●

If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the

hybrid system.

●

Do not leave the vehicle with the hybrid system on for a long time.

If such a situation cannot be avoided, park the vehicle in an open space and ensure

that exhaust fumes do not enter the vehicle interior.

●

Do not leave the hybrid system operating in an area with snow build-up, or where it is

snowing. If snowbanks build up around the vehicle while the hybrid system is operat-

ing, exhaust gases may collect and enter the vehicle.

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Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused

by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle

inspected and repaired by your Lexus dealer.

RX450h_RX450hL_U

1-2. Child safety

●

It is recommended that children sit in the rear seats to avoid accidental con-
tact 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 acci-
dentally.

●

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

Riding with children

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

WARNING

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

or panoramic moon roof, or other features of the vehicle. In addition, heat build-up or

extremely cold temperatures inside the vehicle can be fatal to children.

1-2. Child safety

For safety

and security

RX450h_RX450hL_U

Points to remember..............................................................................................................P. 55
Child restraint system.......................................................................................................... P. 57
When using a child restraint system..............................................................................P. 59
Child restraint system installation method

• Fixed with a seat belt...................................................................................................P. 61
• Fixed with a child restraint LATCH anchor.....................................................P. 67
• Using an anchor bracket (for top tether strap) ............................................. P. 70

The laws of all 50 states of the U.S.A. as well as Canada now require the use of
child restraint systems.

●

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 that suits your vehicle and is appropriate to
the age and size of the child.

Child restraint systems

Before installing a child restraint system in the vehicle, there are precautions
that need to be observed, different types of child restraint systems, as well as
installation methods, etc., written in this manual.

Use a child restraint system when riding with a small child that cannot 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.

Table of contents

Points to remember

1-2. Child safety

RX450h_RX450hL_U

WARNING

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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 installation details, refer to the operation manual enclosed with the child

restraint system. General installation instruction is provided in this manual.

●

Lexus strongly urges the use of a proper child restraint system that conforms 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 windshield or between

the holder and the interior of the vehicle.

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Handling the child restraint system
If the child restraint system is not properly fixed in place, the child or other passengers

may be seriously injured or even killed in the event of sudden braking, sudden swerv-

ing, or an accident.

●

If the vehicle were to receive a strong impact from an accident, etc., it is possible that

the child restraint system has damage that is not readily visible. In such cases, do not

reuse the restraint system.

●

Make sure you have complied with all installation instructions provided with the child

restraint system manufacturer and that the system is properly secured.

●

Keep the child restraint system properly 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 luggage compartment.

1-2. Child safety

For safety

and security

RX450h_RX450hL_U

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

Child restraint system

Installation method

Page

Seat belt

attachment

P. 61

Child restraint

LATCH

anchors

attachment

P. 67

1-2. Child safety

RX450h_RX450hL_U

Anchor brack-

ets (for top

tether strap)

attachment



Second-row seats (RX450h)



Second-row seats (RX450hL)



Third-row seats

P. 70

Installation method

Page

1-2. Child safety

For safety

and security

RX450h_RX450hL_U

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When installing a child restraint system to a front passenger seat
For the safety of a child, install child restraint systems to second-row seats.
When installing child restraint system to a front passenger seat is unavoidable,
adjust the seat as follows and install the child restraint system.

●

Raise the seatback as much as
possible

●

Move the seat to the rearmost
position

●

Raise the seat to the highest posi-
tion

●

If the head restraint interferes
with the installation of the child
restraint system, and the head
restraint can be removed, remove
the head restraint

If the head restraint cannot be removed, raise it to the uppermost position.

When using a child restraint system

WARNING

■

When using a child restraint system
Observe the following precautions.

Failure to do so may result in death or serious injury.

●

Never install a rear-facing child restraint system on the front passenger seat even if

the “AIR BAG OFF” indicator light is illuminated. In the event of an accident, the force

of the rapid inflation of the front passenger airbag can cause death or serious injury to

the child if the rear-facing child restraint system is installed on the front passenger

seat.

●

A forward-facing child restraint system may be installed on the front passenger seat

only when it is unavoidable. A child restraint system that requires a top tether strap

should not be used in the front passenger seat since there is no top tether strap

anchor for the front passenger seat.

1-2. Child safety

RX450h_RX450hL_U

WARNING

■

When using a child restraint system

If the head restraint interferes with the installation of the child restraint system, and the

head restraint can be removed, remove the head restraint.

If the head restraint cannot be removed, raise it to the uppermost position.

●

When a booster seat is installed, always ensure that the shoulder belt is positioned

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 child restraint system suitable to the age and size of the child and install it to the

rear seat.

●

A forward-facing child restraint system may

be installed on the front passenger seat only

when it is unavoidable. When installing a for-

ward-facing child restraint system on the front

passenger seat, raise the seatback as much as

possible, move the seat to the rearmost posi-

tion, and raise the seat to the highest position,

even if the “AIR BAG OFF” indicator light is

illuminated.

●

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 air-

bags or SRS curtain shield airbags deploy

even if the child is seated in the child restraint

system. It is dangerous if the SRS side airbags

and curtain shield airbags inflate, and the

impact could cause death or serious injury to

the child.

●

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.

●

Adjust the front passenger seat so that it does

not interfere with the child restraint system.

1-2. Child safety

For safety

and security

RX450h_RX450hL_U

A child restraint system for a small child or baby must itself be properly
restrained on the seat with the lap portion of the lap/shoulder belt.

◆

Installing child restraint system using a seat belt (child restraint lock func-
tion belt)

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

■

Rear-facing — Infant seat/convertible seat

Adjust the rear seat
If there is a gap between the child seat and the seatback, adjust the seat-
back angle until good contact is achieved.
Place the child restraint system
on the rear seat facing the rear of
the vehicle.

Run the seat belt through the
child restraint system and insert
the plate into the buckle. Make
sure that the belt is not twisted.

Fully extend the shoulder belt and
allow it to retract to put it in lock
mode. In lock mode, the belt can-
not be extended.

Child restraint system fixed with a seat belt

1-2. Child safety

RX450h_RX450hL_U

While pushing the child restraint
system down into the rear seat,
allow the shoulder belt to retract
until the child restraint system is
securely in place.

After the shoulder belt has retracted

to a point where there is no slack in

the belt, pull the belt to check that it

cannot be extended.

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

P. 66)

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Forward-facing — Convertible seat

Adjust the seat



When using the front passenger seat

If installing the child restraint system to the front passenger seat is unavoid-
able, refer to P. 59 for the front passenger seat adjustment.



When using the rear seat

If there is a gap between the child seat and the seatback, adjust the seat-
back angle until good contact is achieved.
Remove the head restraint if it
interferes with your child restraint
system. (

P. 186)

If the head restraint cannot be

removed, raise it to the uppermost

position.

Place the child restraint system
on the seat facing the front of the
vehicle.

1-2. Child safety

For safety

and security

RX450h_RX450hL_U

Run the seat belt through the
child restraint system and insert
the plate into the buckle. Make
sure that the belt is not twisted.

Fully extend the shoulder belt and
allow it to retract to put it in lock
mode. In lock mode, the belt can-
not be extended.

While pushing the child restraint
system into the rear seat, allow
the shoulder belt to retract until
the child restraint system is
securely in place.

After the shoulder belt has retracted

to a point where there is no slack in

the belt, pull the belt to check that it

cannot be extended.

If the child restraint has a top tether strap, follow the child restraint manu-
facturer’s operation manual regarding the installation, using the top tether
strap to latch onto the top tether strap anchor. (

P. 70)

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

P. 66)

LEXUS RX 450HL (2019 year). Instruction - part 3