LEXUS RC300 2021 Service Manual

411-1. For safe use
1
For safety and security
ings, as well as the laws and regula-
tions for child restraint systems.
 Use a child restraint system appro-
priate for the child 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 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 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 trunk.
Child restraint system

421-1. For safe use
■When installing a child restraint
system to a passenger seat
For the safety of a child, install child
restraint systems to a rear seat. 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 posi-
tion
 Move the seat to the rearmost posi-
Installation methodPage
Seat belt attachmentP.44
Child restraint LATCH
anchors attachmentP.47
Anchor brackets (for top tether strap) attachmentP.49
When using a child restraint sys-
tem on the front passenger seat

431-1. For safe use
1
For safety and security
tion
 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
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 airbag inflates with
considerable speed and force that if not
observed may lead to death or serious
injury to the child.
●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, adjust the seatback to the most
upright position, move the seat to the
rearmost position, and raise the seat to
the highest position, even if the “AIR
BAG OFF” indicator light is illumi-
nated.
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.
●Do not allow the child to lean his/her
head or any part of his/her body
against the door or th e 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 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.

441-1. For safe use
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 When using the front seat: Adjust
the seatback
If there is gap between the child seat and
the seatback, adjust the seatback until good contact is achieved.
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, WARNING
●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.
Child restraint system fixed with
a seat belt

451-1. For safe use
1
For safety and security
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.
■Forward-facingConvertible
seat
1 When using the front seat: Adjust
the seatback
If there is gap between the child seat and
the seatback, adjust the seatback until
good contact is achieved.
2Remove the head restraint if it inter-
feres with your child restraint sys-
tem. ( P.105) 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

461-1. For safe use
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.
7If 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.49)
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: Remove the head
restraint if it interferes with your
child restraint system. ( P.105)
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 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.24)

471-1. For safe use
1
For safety and security
■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.
■Child restraint LATCH anchors
LATCH anchors are provided for the
each rear seat. (Buttons displaying the
location of the anchors are attached to
the seats.)
WARNING
■When installing a child restraint sys-
tem
Observe the following precautions.
Failure to do so may result in death or
serious 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 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 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 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
child restraint LATCH anchors

481-1. For safe use
■Installation with LATCH system
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.105)
2 Flip up and fold the cover, and fix it
with the hook-and-loop fastener.
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 connector
system.
Canada only
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 connector
A

491-1. For safe use
1
For safety and security
system.
Canada only
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.49)
5 After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
■Laws and regulations pertaining to
anchorages
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 the
SAE J1819.
■Anchor brackets (for top tether
strap)
Anchor brackets are provided for the
each rear seat.
Use anchor brackets when fixing the
top tether strap.
Anchor brackets
Top tether strap
A
WARNING
■When installing a child restraint sys-
tem
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Shake the child rest raint 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.
Using an anchor bracket (for top
tether strap)
A
B

501-1. For safe use
■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.
1 Adjust the head restraint to the
upmost position.
If the head restraint interferes with the child
restraint system insta llation and the head
restraint can be removed, remove the head
restraint. ( P.105)
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.47)
Top tether strap
Hook
■Laws and regulations pertaining to
anchorages
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 the
SAE J1819.
A
B
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 tether strap to
anything other than the anchor
bracket.
●Shake the child rest raint 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.
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.