2021 LEXUS RX450h ECU

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.145)
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 restra int 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 injuri es 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.145)
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 ch ild 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.145)
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 ch ild 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 injuri es 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, telemat-
ics 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

611-3. Lexus Enform
1
For safety and security
■Certification for Lexus Enform

631-3. Lexus Enform
1
For safety and security
●Safety Connect is available beginning Fall
2009 on select Lexus models (in the
contiguous United States only). Contact
with the Safety Connect response center
is dependent upon the telematics device
being in operative condition, cellular con-
nection availability, and GPS satellite sig-
nal reception, which ca n limit the ability to
reach the response center or receive
emergency service support. Enrollment
and Telematics Subscription Service
Agreement required. A variety of sub-
scription terms is available; charges vary
by subscription term selected and loca-
tion.
●Automatic Collision Notification, Emer-
gency Assistance and Stolen Vehicle
Location will function in the United
States, including Hawaii and Alaska,
Puerto Rico and in Canada, and
Enhanced Roadside Assistance will func-
tion in the United States, Puerto Rico and
in Canada.
●Automatic Collision Notification, Emer-
gency Assistance, Stolen Vehicle and
Enhanced Road Assist ance will not func-
tion in the United States Virgin Islands.
For vehicles first sold in the USVI, no
Safety Connect services will function in
and outside the United States Virgin
Islands.
●Safety Connect services are not subject
to section 255 of the Telecommunica-
tions Act and the device is not TTY com-
patible.
■Languages
The Safety Connect response center will
offer support in multiple languages. The
Safety Connect system will offer voice
prompts in English, Spanish, and French.
Please indicate your language of choice
when enrolling.
■When contacting the response center
You may be unable to contact the response
center if the network is busy.
When the power switch is turned to
ON mode, the red indicator light
comes on for 2 seconds then turns off.
Afterward, the green indicator light
comes on, indicating that the service is
active.
The following indicator light patterns
indicate specific system usage condi-
tions:
 Green indicator light on = Active
service
 Green indicator light flashing =
Safety Connect call in process
 Red indicator light (except at vehi-
cle start-up) = System malfunction
(contact your Lexus dealer)
 No indicator light (off) = Safety
Connect service not active
■Automatic Collision Notification
In case of either airbag deployment or
severe rear-end collision, the system is
designed to automatically call the
response center. The responding agent
receives the vehicle’s location and
attempts to speak with the vehicle
occupants to assess the level of emer-
gency. If the occupants are unable to
communicate, the agent automatically
treats the call as an emergency, con-
tacts the nearest emergency services
provider to describe the situation, and
requests that assistance be sent to the
Safety Connect LED light Indi-
cators
Safety Connect services