Page 72 of 1014
721-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Rear-facing Baby seat/child seat
Place the child restraint sys-
tem 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.
Install a locking clip near
the tab of the lap and shoul-
der belt by inserting the lap
and shoulder webbing
through the recesses of the
locking clip. Buckle the belt
again. If the belt has any
slack, release the buckle and
reinstall the locking clip.
Installing child restraints using a seat belt
1
2
3
Page 73 of 1014
731-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
Forward-facing Child seat
Remove the head restraint if
it interferes with your child
restraint system.
Place the child restraint sys-
tem 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.
Install a locking clip near
the tab of the lap and shoul-
der belt by inserting the lap
and shoulder webbing
through the recesses of the
locking clip. Buckle the belt
again. If the belt has any
slack, release the buckle and
reinstall the locking clip.
1
2
3
4
Page 76 of 1014
761-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Remove the head restraint.
Secure the child restraint sys-
tem using the seat belt or ISO-
FIX 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 install the child restraint system. Follow the
instructions provided by the manufacturer of the system. If your child
restraint system does not provide a locking clip, you can purchase the follow-
ing item from any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional:
Locking clip for child restraint system
(Part No. 73119-22010)
Child restraint systems with a top strap
1
2
3
Page 79 of 1014

791-1. For safe use
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
CAUTION
When installing a child restraint system
If child restraint system regulations exist in the country where you reside,
please contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional for the child restraint system installa-
tion.
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 child’s
shoulder. Failing to do so may result in death or serious injury in the event
of sudden braking, sudden swerving or an accident.
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 sudden braking, sudden swerving or an accident.
Page 183 of 1014
1823-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When closing the windows or moon roof using wireless remote control
Observe the following precautions.
Failing to do so may result in death or serious injury.
Check to make sure that all passengers do not have any part of their body
in a position where it could be caught when a window or moon roof is
being operated.
To prevent inadvertent power windows and moon roof operation, never let
a small child have and use the wireless remote control.
Jam protection function
Never try jamming any part of your body to activate the jam protection
function intentionally.
The jam protection function may not work if something gets caught just
before the window or moon roof fully closes.
Page 185 of 1014
1843-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
Move the inside lock button to the lock position.
Close the door while pulling the door handle.
The door cannot be locked if the power switch is in ACCESSORY
or ON mode, or the electronic key is left inside the vehicle.
The key may not be detected correctly and the door may be locked.
The door cannot be opened from
inside the vehicle when the lock
is set.
Unlock
Lock
These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear
doors.
Locking the front doors from the outside without a key
Rear door child-protector lock
1
2
1
2
Page 187 of 1014
1863-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant throwing 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 for the front doors, as the doors may be opened even
if the inside lock buttons are in locked position.
Set the rear door child-protector locks when children are seated in the rear
seats.
Page 191 of 1014

1903-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
Jam protection function (vehicles with power trunk lid)
While the trunk lid is closing automatically, the trunk lid will stop closing
and open if something gets caught.
Using the mechanical key
The trunk can be also opened using the mechanical key. (P. 909)
When leaving a key to the vehicle with a parking attendant
P. 1 4 0
Customization
The trunk unlocking operation can be changed.
(Customizable features: P. 945)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
Before driving
Make sure that the trunk lid is fully closed. If the trunk lid is not fully
closed, it may open unexpectedly while driving and hit near-by objects or
luggage in the trunk may be thrown out, causing an accident.
Do not allow children to play in the trunk.
If a child is accidentally locked in the trunk, they could suffer from heat
exhaustion, suffocation or other injuries.
Do not allow a child to open or close the trunk lid.
Doing so may cause the trunk lid to open unexpectedly, or cause the
child’s hands, head, or neck to be caught by the closing trunk lid.
Important points while driving
Never let anyone sit in the trunk. In the event of sudden braking or a colli-
sion, they are susceptible to death or serious injury.