Page 66 of 620
661-1. For safe use
GS450h_300h_OM_OM30F00E_(EE)
■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.
Install a locking clip near the tab
of the lap and shoulder 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 67 of 620
671-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F00E_(EE)
■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.
Install a locking clip near the tab
of the lap and shoulder 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 70 of 620
701-1. For safe use
GS450h_300h_OM_OM30F00E_(EE)
Remove the head restraint.
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 install 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 dealer or
repairer, or another duly qualified and equipped professional:
Locking clip for child restraint system
(Part No. 73119-22010)
Child restraint systems with a top strap
1
2
3
Page 73 of 620

731-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F00E_(EE)
WA R N I N G
■When installing a child restraint system
●If child restraint system regulations exist in the country where you reside, please con-
tact any authorized Lexus dealer or repair er, or another duly qualified and equipped
professional for the child restraint system installation.
●When a junior seat is installed, always en sure 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 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 sudden braking, sudden swerving or an
accident.
Page 141 of 620
1413-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F00E_(EE)
WA R N I N G
Observe the following precautions.
Failing to do so may result in death or serious injury.
■When using the wireless remote control and operating the power windows or moon
roof (if equipped)
Operate the power window or moon roof after checking to make sure that there is no
possibility of any passenger having any of their body parts caught in the window or
moon roof. Also, do not allow children to operate the wireless remote control. It is pos-
sible for children and other passengers to get caught in the power window or moon
roof.
■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 143 of 620

1433-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F00E_(EE)
The door cannot be opened from inside
the vehicle when the lock is set.Unlock
Lock
These locks can be set to prevent chil-
dren from opening the rear doors. Push
down on each rear door switch to lock
both rear doors.
The following functions can be set or canceled:
For instructions on customizing, refer to P. 581.
Rear door child-protector lock
1
2
Automatic door locking and unlocking systems
FunctionOperation
Speed linked door locking function
All doors are automatically locked when vehi-
cle speed is approximately 20 km/h (12 mph)
or higher.
Shift position linked door locking
functionAll doors are automatically locked when shift-
ing the shift lever to position other than P.
Shift position linked door unlocking
functionAll doors are automatically unlocked when
shifting the shift lever to P.
Driver’s door linked door unlocking
functionAll the doors are unlocked when the driver’s
door is opened within approximately 45 sec-
onds after turning the power switch off.
Page 145 of 620
1453-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F00E_(EE)
WA R N I N G
■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 vehi-
cle, 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 149 of 620

1493-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F00E_(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.
■If the smart entry & start system or wireless remote control does not operate properly
●Use the mechanical key to open the trunk. ( →P. 5 4 8 )
●Replace the key battery with a new one if it is depleted. ( →P. 4 5 1 )
■When leaving a key to the vehicle with a parking attendant
→P. 1 3 6
■Customization
The trunk unlocking operation can be changed.
(Customizable features: →P. 5 8 6 )
WA R N I N G
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 ne ar-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 ev ent of sudden braking or a collision, they are
susceptible to death or serious injury.