LEXUS NX 300 (2019 year). Manual — part 3

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Points to remember:

P.44

Child restraint system:

P.46

When using a child restraint system on
a passenger seat:

P.47

When using a child restraint system on
a rear seat:

P.48

Child restraint system installation
method
• Fixed with a seat belt:

P.48

• Fixed with a child restraint LATCH

anchor:

P.52

• Using an anchor bracket (for top

tether strap):

P.54

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 warn-

ings, as well as the laws and regula-
tions for child restraint systems.

 Choose a child restraint system that

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

 Use a child restraint system appro-

priate for the child until the child
becomes large enough to properly
wear the vehicle’s seat belt.

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 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

WARNING

■

When a child is riding

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

For effective protection in automobile

accidents and sudden stops, a child

must be properly restrained, using a

seat belt or child restraint system

depending on the age and size of the

child.

●

Lexus strongly urges the use of a

proper child restraint system that con-

forms to the size of the child, installed

on the rear seat. According to acci-

dent 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.

●

Place one child to a child restraint sys-

tem and then secure the child with the

harness of the child restraint system.

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For safety and security

WARNING

■

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, sud-

den 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.

●

Make sure you have complied with all

installation instructions provided with

the child restraint system manufac-

turer and that the system is properly

secured.

●

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.

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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.48

Child restraint

LATCH anchors

attachment

P.52

Anchor brackets (for

top tether strap)

attachment

P.54

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1

For safety and security

■

When installing a child restraint
system to a passenger seat

For the safety of a child, install child
restraint systems to a rear seats. When
installing child restraint system to a
front passenger seat is unavoidable,
adjust the passenger seat as follows
and install the child restraint system.
 Raise the seatback as much as pos-

sible

 Move the seat to the rearmost posi-

tion

 Raise the seat to the upper most

position

 If the head restraint interferes with

the child restraint system installa-
tion and the head restraint can be
removed, remove the head restraint

When using a child restraint sys-
tem on a passenger seat

WARNING

■

When installing a child restraint sys-

tem

Observe the following when installing

child restraint system to the front passen-

ger seat if it is unavoidable. The front pas-

senger SRS air bag inflates with

considerable speed and force that if not

observed may lead to death or serious

injury to the child.

●

Never install a rear-facing child

restraint system on the front passenger

seat even if the “AIR BAG OFF” indi-

cator light is illuminated. In the event of

an accident, the force of the rapid infla-

tion 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 passen-

ger seat.

●

A forward-facing child restraint system

may be installed on the front passen-

ger 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.

●

A forward-facing child restraint system

may be installed on the front passen-

ger seat only when it is unavoidable.

When installing a forward-facing child

restraint system on the front passenger

seat, move the seat as far back as pos-

sible, and raise the seat to the upper

most position, even if the “AIR BAG

OFF” indicator light is illuminated. If

the head restraint interferes with the

child restraint system installation and

the head restraint can be removed,

remove the head restraint.

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

■

Installing child restraint system
using a seat belt (child restraint
lock function belt)

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

■

Rear-facing — Infant seat/convert-
ible seat

1

Adjust the seatback

If there is a gap between the child seat and

the seatback, adjust the seatback until

good contact is achieved.

WARNING

●

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 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 seri-

ous injury to the child.

●

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.

When using a child restraint sys-
tem on a rear seat

WARNING

■

When installing a child restraint sys-

tem

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

Use child restraint system suitable to

the age and size of the child and install

it to the rear seat.

●

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.

●

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,

rear pillars or roof side rails from which

the SRS curtain shield airbag deploys

even if the child is seated in the child

restraint system. It is dangerous if the

SRS curtain shield airbag inflates, and

the impact could cause death or seri-

ous injury to the child.

Child restraint system fixed with
a seat belt

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1

For safety and security

2

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

3

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

4

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

5

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.

6

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

■

Forward-facing — Convertible seat

1

Adjust the seatback

If there is gap between the child seat and

the seatback, adjust the seatback until

good contact is achieved.

2

If the head restraint interferes with
the child restraint system installa-
tion and the head restraint can be
removed, remove the head
restraint. (

P.122)

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3

Place the child restraint system on
the seat facing the front of the vehi-
cle.

4

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

5

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

6

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.

7

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

P.54)

8

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

■

Booster seat

1

High back type: If the head restraint
interferes with your child restraint
system, and the head restraint can
be removed, remove the head
restraint. (

P.122)

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1

For safety and security

2

Place the child restraint system on
the seat facing the front of the vehi-
cle.



Booster type



High back type

3

Sit the child in the child restraint
system. Fit the seat belt to the child
restraint system according to the
manufacturer’s instructions and
insert the plate into the buckle.
Make sure that the belt is not
twisted.

Check that the shoulder belt is correctly

positioned over the child’s shoulder and

that the lap belt is as low as possible.

(

P.25)

■

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.

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■

Child restraint LATCH anchors

LATCH anchors are provided for the
outboard rear seats. (Buttons display-
ing the location of the anchors are
attached to the seats.)

■

Installation with LATCH system

Install the child restraint system in
accordance to the operation manual

WARNING

■

When installing a child restraint sys-

tem

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous 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.

●

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 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.

●

Follow all installation instructions pro-

vided by the child restraint system

manufacturer.

●

When securing some types of child

restraint systems in rear seats, 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

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 posi-

tion. Failure to do so may result in

death or serious injury.

●

When installing a child restraint system

in the rear center seat, adjust both

seatbacks at the same angle. Other-

wise, the child restraint system cannot

be securely restrained and this may

cause death or serious injuries in the

event of sudden braking, sudden

swerving or an accident.

■

When installing a booster seat

To prevent the belt from going into ALR

lock mode, do not fully extend the shoul-

der belt. ALR mode causes the belt to

tighten only. This could cause injury or

discomfort to the child. (

P.26)

■

Do not use a seat belt extender

If a seat belt extender is used when

installing a child restraint system, the seat

belt will not securely hold the child

restraint system, which could cause

death or serious injury to the child or

other passengers in the event of sudden

braking, sudden swerving or an accident.

Child restraint system fixed with
a child restraint LATCH anchor

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1

For safety and security

enclosed with the child restraint sys-
tem.

1

Adjust the seatback

If there is a gap between the child seat and

the seatback, adjust the seatback until

good contact is achieved.

2

If the head restraint interferes with
the child restraint system installa-
tion and the head restraint can be
removed, remove the head
restraint. (

P.122)



Type A

3

Latch the hooks of the lower straps
onto the LATCH anchors.

For owners in Canada:

The symbol on a child restraint system indi-
cates

the presence of a lower connec-

tor system.



Type B

3

Latch the buckles onto the LATCH
anchors.

For owners in Canada:

The symbol on a child restraint system indi-
cates

the presence of a lower connec-

A

A

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tor system.

4

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

P.54)

5

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

■

Laws and regulations pertaining to

anchors

The LATCH system conforms to

FMVSS225 or CMVSS210.2.

Child restraint systems conforming to

FMVSS213 or CMVSS213 specifications

can be used.

This vehicle is designed to conform to SAE

J1819.

■

Anchor brackets (for top tether
strap)

Anchor brackets are provided for each
rear seat.
Use anchor brackets when fixing the
top tether strap.

WARNING

■

When installing a child restraint sys-

tem

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

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 using the LATCH anchors, be

sure that there are no foreign objects

around the anchors 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.

●

When securing some types of child

restraint systems in rear seats, 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

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 posi-

tion. Failure to do so may result in

death or serious injury.

Using an anchor bracket (for top
tether strap)

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For safety and security

Anchor bracket
Anchor bracket for rear center seat
Anchor bracket for rear outboard
seats

■

Fixing the top tether strap to the
anchor bracket

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



Outboard rear seats

1

Adjust the head restraint to the
upmost position.

If the head restraint interferes with the child

restraint system installation and the head

restraint can be removed, remove the head

restraint. (

P.122)

2

Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top tether
strap.

Make sure the top tether strap is securely

latched.

When installing the child restraint system

with the head restraint being raised, be

sure to have the top tether strap pass

underneath the head restraint.

Top tether strap
Hook



Rear center seat

1

Adjust the head restraint to the
downmost position.

If the head restraint interferes with the child

restraint system installation and the head

restraint can be removed, remove the head

restraint. (

P.122)

2

Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top tether
strap.

Make sure the top tether strap is securely

latched.

When installing the child restraint system

with the head restraint being lower, be sure

to have the top tether strap pass over the

A
B
C

A
B

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top of the head restraint.

Top tether strap
Hook

■

Laws and regulations pertaining to

anchors

The LATCH system conforms to

FMVSS225 or CMVSS210.2.

Child restraint systems conforming to

FMVSS213 or CMVSS213 specifications

can be used.

This vehicle is designed to conform to SAE

J1819.

WARNING

■

When installing a child restraint sys-

tem

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

Firmly attach the top tether strap and

make sure that the belt is not twisted.

●

Do not attach the top tether strap to

anything other than the anchor

bracket.

●

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.

●

Follow all installation instructions pro-

vided by the child restraint system

manufacturer.

A
B

●

Outboard rear seats: When installing

the child restraint system with the head

restraint being raised, after the head

restraint has been raised and then the

anchor bracket has been fixed, do not

lower the head restraint.

●

Rear center seat: When installing the

child restraint system with the head

restraint being lowered, be sure to

have the top tether strap pass over the

top of the head restraint. If the belt

passes below the head restraint, it is

possible that the child restraint system

may not be securely fixed.

NOTICE

■

Anchor brackets (for top tether

strap)

When not in use, make certain to close

the lid. If it remains open, the lid may be

damaged.

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For safety and security

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 precau-

tions.

Failure to do so may cause exhaust gases

to enter the vehicle and may lead to an

accident caused by light-deadness, or

may lead to death or a serious health

hazard.

■

Important points while driving

●

Keep the back door closed.

●

If you smell exhaust gases in the vehi-

cle even when the back door is closed,

open the windows and have the vehi-

cle 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 engine.

●

Do not leave the vehicle with the

engine running 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 engine running in an

area with snow build-up, or where it is

snowing. If snowbanks build up around

the vehicle while the engine is running,

exhaust gases may collect and enter

the vehicle.

■

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.

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1-2.Theft deterrent system

The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to

ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled.

■

System maintenance

The vehicle has a maintenance-free type

engine immobilizer system.

■

Conditions that may cause the system to

malfunction

●

If the grip portion of the key is in contact

with a metallic object

●

If the key is in close proximity to or touch-

ing a key registered to the security sys-

tem (key with a built-in transponder chip)

of another vehicle

■

Certification for the engine immobilizer system



For vehicles sold in the U.S.A.

Engine immobilizer system

The vehicle’s keys have built-in tran-
sponder chips that prevent the
engine from starting if a key has not
been previously registered in the
vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all
vehicle thefts.

Operating the system

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For safety and security



For vehicles sold in Canada

WARNING

■

Certifications for the engine immobi-

lizer system

Changes or modifications not expressly

approved by the party responsible for

compliance could void the user’s author-

ity to operate the equipment.

NOTICE

■

To ensure the system operates cor-

rectly

Do not modify or remove the system. If

modified or removed, the proper opera-

tion of the system cannot be guaranteed.