Page 68 of 692
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
1
2
Page 69 of 692
691-1. For safe use
1
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.
1
2
3
Page 71 of 692
711-1. For safe use
1
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
1
2
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 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 77 of 692
77
1
For safety and security
IS300h_EE(OM53D89E)
1-2. Hybrid system
The illustration is an example for explan ation and may differ from the actual item.
Gasoline engine
Electric motor (traction motor)
Hybrid system features
Your vehicle is a hybrid vehicle. It ha s characteristics different from conven-
tional vehicles. Be sure you are closely familiar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) according to dr iving conditions, improving fuel effi-
ciency and reducing exhaust emissions.
1
2
Page 79 of 692

791-2. Hybrid system
1
For safety and security
IS300h_EE(OM53D89E)
■Regenerative braking
In the following situations, ki netic energy is converted to electric energy and decelera-
tion force can be obtained in conjunction with the recharging of the hybrid battery (trac- tion battery).
●The accelerator pedal is released while driving with the shift lever in D or S.
●The brake pedal is depressed while driving with the shift lever in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automati cally. However, it may not stop automati- cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid ba ttery (traction battery), the battery does not
need to be charged from an ou tside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction batter y) will slowly discharge. For this reason, be sure to drive the vehicle at least once every few months for at least 30 minutes or 16 km
(10 miles). If the hybrid battery (traction battery) becomes fully discharged and you are
unable to start the hybrid system, contact any authorized Lexus retailer or Lexus autho- rized repairer, or an y reliable repairer.
■Charging the 12-volt battery
P. 633
The EV indicator comes on when the vehicle is driven using only the electric motor (traction
motor) or the gasoline engine is stopped.