ECU Lexus IS300h 2017 Owner's Guide

631-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
Information provided in the table shows your child restraint system suitability for
various seating positions.
Child restraint system suitability for various seating positions
(with ISOFIX rigid anchors)
Mass groupsSize
classFixture
Vehicle ISOFIX
positionsRecommended Child Restraint
SystemsRear outboard
Carrycot
FISO/L1X-
GISO/L2X-
(1)X-
Group 0
Up to 10 kg
(22 lb.)
EISO/R1IL*“LEXUS MINI”, “LEXUS MIDI”
(1)X-
Group 0+ Up to 13 kg
(28 lb.)
EISO/R1IL*
“LEXUS MINI”,
“LEXUS MIDI” DISO/R2IL*
CISO/R3IL*
(1)X-
Group I
9 to 18 kg (20 to 39 lb.)
DISO/R2IL*- CISO/R3IL*
BISO/F2IUF*, IL*“LEXUS MIDI”
B1 ISO/F2XIUF*, IL*“LEXUS MIDI”,
“LEXUS DUO+”
AISO/F3IUF*, IL*“LEXUS MIDI”
(1)X-

651-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
■When installing a child restraint system on the front passenger seat
■Selecting an appropriate child restraint system
●Use a child restraint system appropriate for the child until the child becomes large enough to properly wear the vehicle’s seat belt.
●If the child is too large for a child restraint sy stem, sit the child on a rear seat and use the
vehicle’s seat belt. ( P. 38)
When you have to use a child restraint system on the front passenger seat, adjust the following:
●The seatback to the most upright position
●The seat cushion to the highest position
●The seat cushion to the fully rearward position
WARNING
■Using a child restraint system
The use of a child restraint system not suitable for the vehicle may not properly secure
the infant or child. It may result in death or serious injury (in the event of sudden braking or an accident).

661-1. For safe use
IS300h_EE(OM53D89E)
WARNING
■Child restraint precautions
●For effective protection in automobile accidents and sudden stops, a child must be
properly restrained, using a seat belt or child restraint system depending on the age
and size of the child. Holding a child in your arms is not a substitute for a child restraint system. In an accident, the child can be crushed against the windshield, or between
you and the vehicle’s interior. This may cause death or serious injury to the child in the
event of a sudden stop, su dden swerve or accident.
●Lexus strongly urges the use of a proper child restraint system that conforms to the
size of the child, installed on the rear seat. According to accident statistics, the child is
safer when properly restra ined in the rear seat than in the front seat.
●Never use a rear-facing child restraint system on the front passenger seat when the
airbag manual on-off switch is on. ( P. 53)
In the event of an accident, the force of the rapid inflation of the front passenger air- bag can cause death or serious injury to the child.
●A forward-facing child restraint system ma y be installed on the front passenger seat
only when it is unavoidable. A child restra int 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. Adjust the seatback as upright as possible and
always move the seat as far back as po ssible because the front passenger airbag could inflate with considerable speed and fo rce. Otherwise, the child may be killed or
seriously injured.
●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, center an d 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 airbags and curtain shield air- bags inflate, and the impact could caus e death or serious injury to the child.
●Make sure you have complied with all installation instructions provided by the child
restraint manufacturer and that the system is properly secured. If it is not secured properly, it may cause death or serious injury to the child in the event of a sudden
stop, sudden swerve or accident.
■When children are in the vehicle
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 othe r serious injuries that could result in death.
If this occurs and the buckle cannot be unfa stened, scissors should be used to cut the belt.
■When the child restraint system is not in use
●Keep the child restraint system properly secure d on the seat even if it is not in use. Do not store the child restraint system un secured 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. This will prevent it from injuring passengers in the event
of a sudden stop, sudden swerve or accident.

671-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
Seat belts (An ELR belt requires a lock-
ing clip)
ISOFIX rigid anchors
Lower anchors are provided for the out- board rear seats, behind the anchor
covers.
Anchor brackets (for top strap)
An anchor bracket is provided for the
outboard rear seats.
Installing child restraints
Follow the child restraint system manu facturer’s instructions. Firmly secure
child restraints to the seats using a seat belt or ISOFIX rigid anchors. Attach
the top strap when installing a child restraint.

681-1. For safe use
IS300h_EE(OM53D89E)
■Rear-facing  Baby seat/child seat
Place the child restraint system
on the rear seat facing the rear of
the vehicle.
Run the seat belt through the
child restraint system and insert
the plate into the buckle. Make
sure that the belt is not twisted.
If your child restraint system is not
equipped with a lock-off (a seat belt
locking feature), secure the child
restraint system using a locking clip.
After installing the child rest raint system, rock it back and forth to ensure that
it is installed securely.
Installing child restraints using a seat belt
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691-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
■Forward-facing Child seat
Remove the head restraint if it
interferes with your child restraint
system.
Place the child restraint system
on the seat facing the front of the
vehicle.
Run the seat belt through the
child restraint system and insert
the plate into the buckle. Make
sure that the belt is not twisted.
If your child restraint system is not
equipped with a lock-off (a seat belt
locking feature), secure the child
restraint system using a locking clip.
After installing the child rest raint system, rock it back and forth to ensure that
it is installed securely.
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2
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711-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
Remove the head restraint if it inter-
feres with your child restraint system.
Latch the buckles onto the exclusive
fixing bars.
If the child restraint has a top strap, the
top strap should be latched onto the anchor bracket.
Installation with ISOFIX rigid anchor
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2

721-1. For safe use
IS300h_EE(OM53D89E)
Remove the head restraint if it inter-
feres with your child restraint system.
Secure the child restraint system
using the seat belt or ISOFIX rigid
anchors.
Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top strap.
Make sure the top strap is securely latched.
■When installing a child restraint system
You need a locking clip to in stall the child restraint system. Follow the instructions pro-
vided by the manufacturer of the system. If yo ur child restraint system does not provide a
locking clip, you can purchase the following item from any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer:
Locking clip for chil d restraint system
(Part No. 73119-22010)
Child restraint systems with a top strap
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2
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731-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
WARNING
■When installing a child restraint system
Follow the directions given in the child rest raint system installation manual and fix the
child restraint system securely in place.
If the child restraint system is not correctly fixed in place, the child or other passengers may be seriously injured or even killed in th e event of a sudden braking, sudden swerv-
ing or an accident.
●If the driver’s seat interferes with the child restraint system and prevents it from being
attached correctly, atta ch the child restraint
system to the right-hand rear seat (left-hand drive vehicles) or the left-hand rear seat
(right-hand drive vehicles).
●Adjust the front passenger seat so that it does not interfere with the child restraint system.
●When installing a forward-facing child
restraint system on the front passenger seat, move the seat as far back as possible.
Failure to do so may result in death or serious
injury if the airbags deploy (inflate).

751-1. For safe use
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For safety and security
IS300h_EE(OM53D89E)
WARNING
■When installing a child restraint system
●If child restraint system regulations exist in the country where you reside, please con-
tact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer for the child rest raint system installation.
●When a junior 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 ch ild’s shoulder. Failing to do so may result in death or serious injury in the event of su dden braking, sudden swerving or an acci-
dent.
●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.
●Follow all installation instructions provided by the child restraint system manufacturer.
■To correctly attach a child restraint system to the anchors
When using the lower 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. Make sure
the child restraint system is securely attached , or it may cause death or serious injury to
the child or other passengers in the event of a sudden braking, sudden swerve or an accident.