2021 LEXUS RX450h ECU

451-2. Child safety
1
For safety and security
1-2.Child safety
Points to remember: P.45
Child restraint system: P.46
When using a child restraint system:
P.48
Child restraint system installation
method
• Fixed with a seat belt: P.50
• Fixed with a child restraint LATCH anchor: P.54
• Using an anchor bracket (for top tether strap): P.57
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-
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.112, 155)
 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 or panoramic moon roof,
or other features of the vehicle. In addi-
tion, heat build-up or extremely cold
temperatures inside the vehicle can be
fatal to children.
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 second-row
seat. Be sure to follow the installa-
tion method that is in the operation
manual enclosed with the restraint
system.
Table of contents
Points to remember

461-2. Child safety
ings, as well as the laws and regula-
tions 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.
■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.
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 installa-
tion details, refer to the operation man-
ual enclosed with the child restraint
system. General insta llation instruction
is provided in this manual.
●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 second-row seat.
According to accident statistics, the
child is safer when properly restrained
in the second-row 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 crushe d against the wind-
shield or between the holder and the
interior of the vehicle.
■Handling the child restraint system
If the child re straint 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 rest raint 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.
Child restraint system

471-2. Child safety
1
For safety and security
Installation methodPage
Seat belt attachmentP.50
Child restraint LATCH anchors attachmentP.54

491-2. Child safety
1
For safety and security
tion
 Raise the seatback as much as pos-
sible
 Raise the seat to the highest position
 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 restrain t cannot be removed,
raise it to the uppermost position.
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 re ar-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, raise the seatback as much as
possible, move the seat to the rear-
most position, and raise the seat to the
highest position, even if the “AIR BAG
OFF” indicator light is illuminated.
If the head restraint interferes with the
installation of the ch ild restraint system,
and the head restraint can be removed,
remove the head restraint.
If the head restrain t cannot be removed,
raise it to the uppermost position.

511-2. Child safety
1
For safety and security
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.
6After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
(P.54)
■Forward-facing  Convertible
seat
1 Adjust the seat
When using the front passenger
seat
If installing the child restraint system to the
front passenger seat is unavoidable, refer
to P.48for the front passenger seat adjust-
ment.
When using the rear seat
If there is a gap between the child seat and
the seatback, adjust the seatback angle
until good contact is achieved.
2Remove the head restraint if it inter-
feres with your child restraint sys-
tem. ( P.145)
If the head restraint cannot be removed,
raise it to the uppermost position.

521-2. Child safety
3Place 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.57)
8 After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
(P.54)
■Booster seat
1 If installing the child restraint sys-
tem to the front passenger seat is
unavoidable, refer to P.48for the
front passenger seat adjustment.
2 High back type: Remove the head
restraint if it interferes with your
child restraint system. ( P.145)
If the head restraint cannot be removed,

531-2. Child safety
1
For safety and security
raise it to the uppermost position.
3Place the child restraint system on
the seat facing the front of the vehi-
cle.
Booster type
High back type
4 Sit the child in the child restraint
system. Fit the seat belt to the child
restraint system according to the
manufacturer’s in structions 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.26)
■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 sp ring up due to the
rebound of the seat cushion. Release the
buckle while holding down the child
restraint system.
Since the seat belt auto matically reels itself,
slowly return it to the stowing position.
WARNING
■When installing a child restraint sys-
tem
Observe the following precautions.
Failure to do so may result in death or
serious injury.

541-2. Child safety
■Child restraint LATCH anchors
LATCH anchors are provided for the
outboard second-row seats. (Buttons
displaying the location of the anchors
are attached to the seats.)
WARNING
●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 th e 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 position s next to the child
restraint without inte rfering 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 se at, adjust both seat
cushions to the same position and
align both seatbacks at the same
angle. The seatbacks must be adjusted
to the same angle. Otherwise, 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.28)
■Do not use a seat belt extender
If a seat belt extender is used when
installing a child restra int 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