2013 Lexus GS450h ECU

631-1. For safe use
GS450h_U (OM30D01U)
1
For safety and security
While pushing the child
restraint system down into the
rear seat, allow the shoulder
belt to retract until the child
restraint system is securely in
place.
After the shoulder belt has
retracted to a point where there is
no slack in the belt, pull the belt to
check that it cannot be extended.
■Forward-facing Convertible seat
Rear outboard seats:
Remove the head restraint.
Place the child restraint system
on the seat facing the front of
the vehicle.
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641-1. For safe use
GS450h_U (OM30D01U)Run the seat belt through the
child restraint system and
insert the plate into the buckle.
Make sure that the belt is not
twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in lock mode. In lock mode, the
belt cannot be extended.
While pushing the child
restraint system into the rear
seat, allow the shoulder belt to
retract until the child restraint
system is securely in place.
After the shoulder belt has
retracted to a point where there is
no slack in the belt, pull the belt to
check that it cannot be extended.
If the child restraint has a top teth
er strap, the top tether strap should
be latched onto the top tether strap anchor. ( P. 6 6 )
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651-1. For safe use
GS450h_U (OM30D01U)
1
For safety and security
■Booster seatPlace the child restraint system
on the seat facing the front of
the vehicle.
Sit the child in the child
restraint system. Fit the seat
belt to the child restraint sys-
tem according to the manufac-
turer’s instructions and insert
the plate into the buckle. Make
sure that the belt is not twisted.
Check that the shoulder belt is cor-
rectly positioned over the child’s
shoulder and that the lap belt is as
low as possible. ( P. 3 2 )
Push the buckle release button and
fully retract the seat belt.
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Removing a child restraint installed with a seat belt

661-1. For safe use
GS450h_U (OM30D01U)Rear outboard seats:
Remove the head restraint.
Secure the child restraint system
using the seat belt or LATCH
anchors.
Open the anchor bracket cover,
latch the hook
onto the anchor
bracket and tighten the top tether
strap.
Make sure the top tether strap is
securely latched.
■Laws and regulations pertaining to anchorages
The LATCH system conforms to FMVSS225 or CMVSS210.2.
Child restraint systems conforming to FM VSS213 or CMVSS213 specifications can
be used.
This vehicle is designed to conform to the SAE J1819.
Child restraint systems with a top tether strap
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671-1. For safe use
GS450h_U (OM30D01U)
1
For safety and security
CAUTION
■When installing a booster seat
To prevent the belt from going into ALR lock mode, do not fully extend the shoul-
der belt. ALR mode causes the belt to tighten only. This could cause injury or dis-
comfort to the child. (P. 3 4 )
■When installing a child restraint system
Follow the directions given in the child restraint 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 passen-
gers may be seriously injured or even killed in the event of a sudden braking or an
accident.
●If the driver’s seat interferes with the child
restraint system and prevents it from being
attached correctly, attach the child restraint
system to the righ t-hand rear seat.
●Adjust the front passenger seat so that it
does not interfere with the child restraint
system.
●Only put a forward-facing child restraint
system on the front se at when unavoidable.
When installing a forward-facing child
restraint system on the front passenger
seat, move the seat as far back as possible
even if the “AIR BAG OFF” indicator light is
illuminated. Failure to do so may result in
death or serious injury if the airbags deploy
(inflate).

681-1. For safe use
GS450h_U (OM30D01U)
CAUTION
■When installing a child restraint system
●When a booster seat is installed, always ensure that the shoulder belt is posi-
tioned 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 an accident or a sudden brak-
ing.
●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 manufac-
turer.
■Do not use a seat belt extender
If a seat belt extender is used when inst alling a child restraint system, the seat belt
will not securely hold the child restraint system, which could cause death or serious
injury to the child or other passengers in the event of a sudden braking, sudden
swerving or an accident.
■To correctly attach a child restraint system to the anchors
When using the LATCH 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 or
an accident.

691-1. For safe use
GS450h_U (OM30D01U)
1
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if
inhale.
CAUTION
Exhaust gases include harmful carbon mono xide (CO), which is colorless and odor-
less. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an acci-
dent caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open
the windows and have the vehicle inspected at your Lexus dealer as soon as pos-
sible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop
the hybrid system.
●Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and
ensure that exhaust fumes do not enter the vehicle interior.
●Do not leave the hybrid system operating in an area with snow build-up, or where
it is snowing. If snowbanks build up around the vehicle while the hybrid system is
operating, exhaust gases may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack
caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to have
the vehicle inspected and repaired by your Lexus dealer.

711-2. Hybrid system
GS450h_U (OM30D01U)
1
For safety and security
◆When stopped/during start off
The gasoline engine stops when the vehicle is stopped. During start off,
the electric motor (traction motor) drives the vehicle. At slow speeds or
when traveling down a gentle slope, the engine is stopped and the elec-
tric motor (traction motor) is used.
◆During normal driving
The gasoline engine is predominantl y used. The electric motor (traction
motor) charges the hybrid battery (traction battery) as necessary.
◆When accelerating sharply
When the accelerator pedal is depres sed heavily, the power of the
hybrid battery (traction batter y) is added to that of the gasoline engine
via the electric motor (traction motor).
◆When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (traction
battery).
When driving with the gasoline engine stopped, a sound, which changes
in accordance with the driving speed, w ill be played in order to warn peo-
ple nearby of the vehicle’s approach. The sound will stop when the vehicle
speed exceeds approximately 15 mph (25 km/h).
Vehicle proximity notification system