Page 72 of 692
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
1
2
3
Page 73 of 692

731-1. For safe use
1
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).
Page 74 of 692
741-1. For safe use
IS300h_EE(OM53D89E)
WARNING
■When installing a child restraint system
●Never use a rear-facing child restraint system
on the front passenger seat when the airbag
manual on-off switch is on. ( P. 53)
The force of the rapid inflation of the front
passenger airbag can cause death or serious
injury to children in the event of an accident.
There is a label(s) on the passenger side sun visor, indicating it is forbidden to attach a
rear-facing child restrain t system to the front
passenger seat.
Details of the label(s) are shown in the illus-
tration below.
Page 75 of 692

751-1. For safe use
1
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.
Page 150 of 692

1503-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53D89E)
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked. Depending on the force of the impact or the type of accident, however, the system may
not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 628)
■Conditions affecting the operation of the smart entry & start system or wireless remote
control
P. 159
■Customization
Settings (e.g. unlocking function using a key) can be changed. (Customizable features: P. 657)
WARNING
■To prevent an accident
Observe the following precauti ons while driving the vehicle. Failure to do so may result in a door open ing and an occupant being thrown out of the
vehicle, resulting in death or serious injury.
●Ensure that all doors are properly closed.
●Do not pull the inside handle of the doors while driving.
Be especially careful with the front doors, as the doors may be opened even if the
inside lock buttons ar e in locked position.
●Set the rear door child-protector locks when children are seated in the rear seats.
Page 176 of 692
1763-3. Adjusting the seats
IS300h_EE(OM53D89E)
WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.
■When folding the rear seatbacks down
●Do not fold the seatbacks down while driving.
●Stop the vehicle on level ground, set the parking brake and shift the shift lever to P.
●Do not allow anyone to sit on a folded seatback or in the trunk while driving.
●Do not allow children to enter the trunk.
■After returning the rear seatback to the upright position
●Check that the seat belts are not twisted or caught in the seatback.
●Make sure that the seatback is securely
locked in position by lightly pushing it back
and forth. If the seatback is not securely locked, the red
marking will be visible on the seatback lock
release knob. Make sure that the red marking is not visible.
Page 479 of 692

4796-2. Using the air conditioning system
6
Interior features
IS300h_EE(OM53D89E)
Turn the heated steering wheel on/off
The indicator light comes on when the heated steering wheel is operating.
Heated steering wheel/seat heaters/seat ventila-
tors
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat vent ilators maintain good airflow by blow-
ing air from the seats.
WARNING
●Care should be taken to prev ent injury if anyone in the following categories comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin • Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent minor burns or overheating,
• Do not cover the seat with a blanket or cushion when using the seat heater. • Do not use seat heater more than necessary.
NOTICE
●Do not put heavy objects that have an unev en surface on the seat and do not stick sharp objects (needles, nails, etc.) into the seat.
●To prevent 12-volt battery discharge, do no t use the functions when the hybrid system
is off.
Heated steering wheel
Page 674 of 692

674Alphabetical index
IS300h_EE(OM53D89E)
Card key.................................................... 138
Care ............................................... 502, 506
Aluminum wheels ............................. 503
Exterior....................................................502
Interior .................................................... 506
Seat belts ................................................507
Cargo hooks.......................................... 488
Caution label .............................................. 81
CD player ................................................ 396
Chains ....................................................... 362
Child restraint system ............................ 59
Baby seats, definition ..........................60
Baby seats, installation .......................68
Child seats, definition..........................60
Child seats, installation.......................68
Installing CRS with ISOFIX
rigid anchors.......................................... 71
Installing CRS with seat belts..........68
Installing CRS with top strap ...........72
Junior seats, definition ........................60
Junior seats, installation ..................... 70
Child safety ................................................ 58
12-volt battery
precautions ........................... 524, 634
Airbag precautions ............................. 45
Child restraint system ........................ 59
How your child should
wear the seat belt.............................. 40
Installing child restraints .....................67
Moon roof precautions .................. 200
Power window lock switch ............ 193
Power window precautions........... 196
Rear door child-protectors ............148
Removed electronic key
battery precautions.........................551
Seat belt precautions........................... 42
Seat heater precautions ................. 479
Trunk precautions ..............................155
Child-protectors ................................... 148
Cleaning....................................... 502, 506
Aluminum wheels..............................503
Exterior ................................................... 502
Interior.....................................................506
Seat belts ............................................... 507
Clock ...........................................................491
Coat hooks.............................................. 495
C