LEXUS ES300h 2022 Service Manual

391-1. For safe use
1
For safety and security
QAdult*1
QChild*4
WARNING
OAdjust the front passenger seat so that
the head restraint does not touch the
ceiling. If the head restraint is left in
contact with the ceiling, the system
may not detect the front passenger
properly, leading to improper opera-
tion of the airbags.
Condition and operation in the front passenger occupant classification
system
Indicator/warning light
“PASSENGER AIR BAG” indicator lights“PASSENGER AIR BAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagActivatedFront passenger knee airbag
Indicator/warning light
“PASSENGER AIR BAG” indicator lights
“PASSENGER AIR
BAG OFF” or “PAS- SENGER AIR BAG
ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivated or acti-
vated
*4Front passenger knee airbag

401-1. For safe use
QChild restraint system with infant*5
QUnoccupied
QThere is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may not recognize him/her as an adult depending on
his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: For some children, child in seat, child in boos ter seat or child in convertible seat, the sys-
tem may not recognize him/her as a child. Factors which may affect this can be the phy-
sique or posture.
*5: Never install a rear-facing child restraint sy stem on the front passenger seat. A forward-
Indicator/warning
light
“PASSENGER AIR BAG” indicator lights“PASSENGER AIR
BAG OFF”
*6
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/warning light
“PASSENGER AIR BAG” indicator lights“PASSENGER AIR BAG OFF”
SRS warning light
OffDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/warning light
“PASSENGER AIR BAG” indicator lights“PASSENGER AIR BAG OFF”
SRS warning light
OnDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

411-1. For safe use
1
For safety and security
facing child restraint system should only be installed on the front passenger seat when it
is unavoidable. ( P.45)
*6: In case the indicator light is not illuminated, consult this manual on how to install the child
restraint system properly. ( P.43)

421-1. For safe use
Exhaust gas precautions
Harmful substance to the human
body is included in exhaust gases if
inhaled.
WARNING
Exhaust gases include harmful carbon
monoxide (CO), which is colorless and
odorless. Observe the following precau-
tions.
Failure to do so may cause exhaust gases
enter the vehicle and may lead to an
accident caused by light-headedness, or
may lead to death or a serious health
hazard.
QImportant points while driving
OKeep the trunk lid closed.
OIf you smell exhaust gases in the vehi-
cle even when the trunk lid is closed,
open the windows and have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
QWhen parking
OIf the vehicle is in a poorly ventilated
area or a closed area, such as a
garage, stop the hybrid system.
ODo not leave the vehicle with the
hybrid system operating 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.
ODo not leave the hybrid system oper-
ating in an area with snow build-up, or
where it is snowing. If snowbanks build
up around the vehicle while the hybrid
system is operating, exhaust gases
may collect and enter the vehicle.
QExhaust 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.

431-2. Child safety
1
For safety and security
1-2.Child safety
Points to remember: P.43
Child restraint system: P.44
When using a child restraint system:
P.45
Child restraint system installation
method
• Fixed with a seat belt: P.47
• Fixed with a child restraint LATCH anchor: P.50
• Using an anchor bracket (for top
tether strap): P.53
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 warnings,
as well as the laws and regulations
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 eno ugh 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.107, 132)
 Do not let small children operate
equipment which may catch or
pinch body parts, such as the
power window, hood, trunk, seats
etc.
WARNING
QWhen 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 other features of the
vehicle. In addition, 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 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

441-2. Child safety
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.
QTypes 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
QWhen a child is riding
Observe the following precautions.
Failure to do so may result in death or
serious injury.
OFor 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 instal-
lation details, refer to the operation
manual enclosed with the child
restraint system. General installation
instruction is provided in this manual.
OLexus 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.
OHolding 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.
QHandling 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,
sudden swerving, or an accident.
OIf 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.
OMake sure you have complied with all
installation instructions provided with
the child restraint system manufac-
turer and that the system is properly
secured.
OKeep 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.
OIf it is necessary to detach the child
restraint system, remove it from the
vehicle or store it securely in the trunk.
Child restraint system

451-2. Child safety
1
For safety and security
QWhen installing a child restraint
system to a front 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 seat as follows and install the
child restraint system. 
Move the front seat fully rearward.
 Adjust the seatback angle to the
most upright position.When installing a forward-facing child
seat, if there is a gap between the child seat
and the seatback, adjust the seatback
angle until good contact is achieved.
Adjust the front of the seat cushion
to the uppermost position.
 Adjust the seat height to the upper-
most position.
Installation methodPage
Seat belt attachmentP.47
Child restraint LATCH
anchors attachmentP.50
Anchor brackets (for top tether strap) attachmentP.53
When using a child restraint sys-
tem

461-2. Child safety
Adjust the lumbar support to the
lowest position.
 Adjust the pelvic support
* to the
lowest position.
 If the head restrain t interferes with
the child restraint system installation
and the head restraint can be
removed, remove the head
restraint. Otherwise, put the head
restraint in the upper most position.
*: If equipped
WARNING
QWhen using a child restraint system
Observe the following precautions.
Failure to do so may result in death or
serious injury.
ONever install a rear-facing child
restraint system on the front passen-
ger seat even if the “PASSENGER
AIR BAG OFF” indicator light is illu-
minated. In the event of an accident,
the force of the rapid inflation 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 passenger seat.
OA forward-facing child restraint sys-
tem may be installed on the front pas-
senger 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.
OA forward-facing child restraint sys-
tem may be installed on the front pas-
senger seat only when it is
unavoidable. When installing a for-
ward-facing child restraint system on
the front passenger seat, adjust the
seatback angle to the most upright
position, move the seat to the rearmost
position, and raise the seat to the
upper most position, even if the “PAS-
SENGER AIR BAG OFF” indicator
light is illuminated.
ODo 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 or rear 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 serious injury to the child.

471-2. Child safety
1
For safety and security
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.
QInstalling 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.
QRear-facing  Infant seat/con-
vertible seat
1 Place the child restraint system on
the rear seat facing the rear of the
vehicle.
2 Run the seat belt through the child
restraint system and insert the plate
into the buckle. Make sure that the
belt is not twisted.
3 Fully extend the shoulder belt and
allow it to retract to put it in lock
mode. In lock mode, the belt cannot
be extended.WARNING
OWhen 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.
OUse child restraint system suitable to
the age and size of the child and install
it to the rear seat.
OIf 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.
OAdjust the front passenger seat so that
it does not interfere with the child
restraint system.
Child restraint system fixed with
a seat belt

481-2. Child safety
4While 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.
5After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
( P.50)
QForward-facing  Convertible
seat
1 Adjust the seat
When using the front passenger seat: If
installing the child rest raint system to the
front passenger seat is unavoidable, refer
to P.45 for front passenger seat adjust-
ment.
2 Place the child restraint system on
the seat facing the front of the vehi-
cle. 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 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