2017 Lexus GS300h ECU

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(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
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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
■Junior 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.
Sit the child in the child restraint
system. Fit the seat belt to the
child restraint system according
to the manufacturer’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. 38)
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2
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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(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 your 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 child restraint system
(Part No. 73119-22010)
Child restraint systems with a top strap
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721-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■When installing a child restraint system
Follow the directions given in the child restraint system inst allation 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 the event of sudden braking, sudden swerving
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 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.
●Only put a forward-facing child restraint sys-
tem on the front seat when unavoidable.
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).

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
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. 54)
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 restraint system to the front pas-
senger seat.
Details of the label(s) are shown in the illustra-
tion below.

741-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
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 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 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 se curely 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.

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1-1. For safe use
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GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
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 any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer as soon as possible.
■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 operat-
ing, 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 sur e to have the vehicle
inspected and repaired by any authorized Le xus retailer or Lexus authorized repairer,
or any reliable repairer.

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1-2. Hybrid system
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GS450h_300h_OM_OM30F92E_(EE)
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 electric motor
(traction motor) is used.
When shift lever is in N, the hybrid battery (traction battery) is not b eing
charged.
* : When the hybrid battery (traction battery) requires charging or the engine is
warming up, etc., the gasoline engine will not automatically stop. ( P. 78)
◆During normal driving
The gasoline engine is predominantly used. The electric motor (traction
motor) charges the hybrid battery (traction battery) as necessary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the hybrid bat-
tery (traction battery) is added to that of the gasoline engine via the electric
motor (traction motor).
◆When braking (regenerative braking)
The wheel operate the electric motor (t raction motor) as a power generator,
and the hybrid battery (traction battery) is charged.