ECU LEXUS RX450h 2022 Owner's Manual

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.143)
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.143)
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. T he 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

551-2. Child safety
1
For safety and security
■When installing in the rear out-
board seats
Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.
1 Adjust the 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.143)
If the head restrain t cannot be removed,
raise it to the uppermost position.
3 Widen the gap between the seat
cushion and seatback slightly.
With flexible lower attachments
4 Latch the hooks of the lower
attachments onto the LATCH
anchors.
For owners in Canada:
The symbol on a child restraint sys- tem indicates the presence of a
lower connector system.
Canada only
With rigid lower attachments
4 Latch the buckles onto the LATCH
anchors.
For owners in Canada:
The symbol on a child restraint sys-
A
A

561-2. Child safety
tem indicates the presence of a
lower connector system.
Canada only
5 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)
6 After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
( P.54)
■When installing in the rear center
seat
There are no LATCH anchors behind
the rear center seat. However, the
inboard LATCH anchors of the out-
board seats, which are 18.1 in. (460
mm) apart, can be used if the child
restraint system manufacturer’s
instructions permit use of those anchors with the anchor spacing
stated.
Child restraint systems with rigid lower
attachments cannot be installed in the
center seat. This type of child restraint
system can only be installed in the out-
board seat.
■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.
A
A
WARNING
■When installing a child restraint sys-
tem
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●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.
●Never attach two child restraint system
attachments to the same anchor. In a
collision, one anchor may not be
strong enough to hold two child
restraint system at tachments and may
break.
If the LATCH anchors are already in
use, use the seat belt to install a child
restraint system in the center seat.

571-2. Child safety
1
For safety and security
■Anchor brackets (for top tether
strap)
Anchor brackets are provided for the
following seats:
Use anchor brackets when fixing the
top tether strap.
Second-row seats (RX450h)
Anchor brackets
Top tether strap
Second-row seats (RX450hL)
Anchor brackets
Top tether strap
Third-row left side seat*
Anchor brackets
Top tether strap
*: The third-row seats are not equipped with Child restraint LATCH anchors.
WARNING
●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 seat, 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.
●If the seat is adju sted, reconfirm the
security of the child restraint system.
Using an anchor bracket (for top
tether strap)
A
B
A
B
A
B

581-2. Child safety
■Fixing the top tether strap to the
anchor bracket (second-row seats)
Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.
1 Remove the head restraint if it inter-
feres with your child restraint sys-
tem. ( P.143)
If the head restrain t cannot be removed,
raise it to the uppermost position.
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. ( P.54)
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.
Hook
Top tether strap
■Fixing the top tether strap to the
anchor bracket (third-row left side
seat)
Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.
1 Remove the head restraint if it inter-
feres with your child restraint sys-
tem. ( P.143)
If the head restraint cannot be removed,
raise it to the uppermost position.
2 Latch the hook onto the anchor
bracket and tighten the top tether
strap.
Make sure the top tether strap is securely
latched. ( P.54)
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.
Hook
Top tether strapA
B
A
B

591-2. Child safety
1
For safety and security
■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.
Failure to do so may result in death or
serious injury.
●Firmly attach the top tether strap and
make sure that the belt is not twisted.
●Do not attach the top strap to anything
other than the anchor bracket of the
seat the child restraint system is
installed to.
●Follow all installation instructions pro-
vided by the child restraint system
manufacturer.
●When installing the child restraint sys-
tem 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.
●When installing a child restraint system
in the rear center seat, 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.
●If the seat is adju sted, reconfirm the
security of the child restraint system.
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.

601-3. Lexus Enform
1-3.Lexus Enform
*:If equipped
“SOS” button
LED light indicators
Microphone
Lexus Enform Safety Con-
nect
*
Safety Connect is a subscrip-
tion-based telematics service that
uses Global Positioning System
(GPS) data and embedded cellular
technology to provide safety and
security features to subscribers.
Safety Connect is supported by
Lexus’ designated response center,
which operates 24 hours per day, 7
days per week.
Safety Connect service is available
by subscription on select,
telematics hardware-equipped
vehicles.
By using the Safety Connect ser-
vice, you are agreeing to be bound
by the Telematics Subscription Ser-
vice Agreement and its Terms and
Conditions, as in effect and
amended from time to time, a cur-
rent copy of which is available at
Lexus.com. All use of the Safety
Connect service is subject to such
then-applicable Terms and Condi-
tions.
System components
A
B
C