
441-1. For safe use
LS500h_OM_(U)_1809
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.
■Important points while driving
●Keep the trunk lid closed.
●If 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.
■When parking
●If the vehicle is in a poorly ventilated 
area or a closed area, such as a 
garage, stop the hybrid system.
●Do not leave the vehicle with the 
hybrid system on 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.
●Do not leave the hybrid system operat-
ing 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.
■Exhaust 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. 

451-2. Child safety
LS500h_OM_(U)_1809
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.47
Child restraint system installation 
method
• Fixed with a seat belt: P.49
• Fixed with a child restraint LATCH  anchor: P.53
• Using an anchor bracket (for top  tether strap): P.55
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-
ings, as well as the laws and regula-
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.115, 156)
 Do not let small children operate 
equipment which may catch or 
pinch body parts, such as the 
power window, hood, trunk, 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 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 fol-
low the installation method that is in 
the operation manual enclosed with 
the restraint system.
Table of contents
Points to remember 

461-2. Child safety
LS500h_OM_(U)_1809
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 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 

481-2. Child safety
LS500h_OM_(U)_1809
lowest position (if equipped).
 Adjust the pelvic support to the low-
est position.
 Adjust the seatback side bolster to 
the widest position (if equipped).
 Adjust the seat cushion side bolster 
to the lowest position (if equipped).
 Adjust the hip support to the lowest 
position (if equipped).
 If the head restraint interferes with 
the child restraint system installa-
tion and the head restraint can be 
removed, remove the head restraint. 
Otherwise, put the head restraint in 
the upper most position.
■When installing a child restraint 
system to a power rear seat (if 
equipped)
When using a child restraint system in 
an outer rear seat, adjust the seat as 
follows and install the child restraint 
system.
 Adjust the seat cushion to the fully 
rearward position.
 Adjust the upper seatback to the 
rearmost position.
 Adjust the front of the seat cushion 
to the lowest position. 
Adjust the head restraint to the low-
est and rearmost position.
 Adjust the shoulder bolster to the 
lowest position.
 Adjust the lumbar support to the 
lowest position.
 Adjust the pelvic support to the low-
est position.
 Disable the automatic rear seat 
operation. ( P.318)
 For the rear seat with an ottoman (if 
equipped): Adjust the seatback to 
the most upright position and otto-
man (footrest) to the stowed posi-
tion.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 rear-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-fac ing child restraint 
system is installed  on the front passen-
ger seat. 

491-2. Child safety
LS500h_OM_(U)_1809
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.
■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.
WARNING
●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 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 “AIR BAG OFF” indicator light is 
illuminated. 
●Do 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 ai rbags 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.
●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.
●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 passe nger seat so that 
it does not interfere with the child 
restraint system.
Child restraint system fixed with 
a seat belt 

521-2. Child safety
LS500h_OM_(U)_1809
■Booster seat
1 If installing the child restraint sys-
tem to the front passenger seat is 
unavoidable, refer to P.47 for front 
passenger seat adjustment.
2 Place 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.24)
■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. 

531-2. Child safety
LS500h_OM_(U)_1809
1
For safety and security
■Child restraint LATCH anchors
LATCH anchors are provided for the 
outboard rear seat. (Buttons displaying 
the location of the anchors are 
attached to the seats.)
■Installation with LATCH system
Install the child restraint system in 
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. 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.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 
a child restraint LATCH anchor 

551-2. Child safety
LS500h_OM_(U)_1809
1
For safety and security
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.55)
6 After installing the child restraint 
system, rock it back and forth to 
ensure that it is installed securely. 
(P.53)
■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.
■Anchor brackets (for top tether 
strap)
Anchor brackets are provided for each 
rear seat.
Use anchor brackets when fixing the 
top tether strap.
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.
●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.
●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 interfering 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.
Using an anchor bracket (for top 
tether strap)