Lexus GS300h 2013 Workshop Manual

511-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
If the SRS airbags deploy (inflate)
Bruising and slight abrasions may result from contact with a deploying
(inflating) SRS airbag.
A loud noise and white powder will be emitted.
Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the seats, the glove box, parts of the front and rear pillars, and roof
side rails may be hot for several minutes. The airbag itself may also be hot.
The windshield may crack.
SRS airbag deployment conditions (SRS front airbags)
The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 20
- 30 km/h [12 - 18 mph] frontal collision with a fixed wall that does not
move or deform).
However, this threshold velocity will be considerably higher in the follow-
ing situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
Depending on the type of collision, it is possible that only the seat belt pre-
tensioners will activate.
SRS airbag deployment conditions (SRS side and curtain shield airbags)
The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an approximately 1500 kg [3300 lb.] vehi-
cle colliding with the vehicle cabin from a direction perpendicular to the
vehicle orientation at an approximate speed of 20 - 30 km/h [12 - 18 mph]).
The SRS curtain shield airbags may also deploy in the event of a severe
frontal collision.

521-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Conditions under which the SRS airbags may deploy (inflate), other than a
collision
The SRS front airbags may also deploy if a serious impact occurs to the
underside of your vehicle. Some examples are shown in the illustration.
Types of collisions that may not deploy the SRS airbags (SRS front airbags)
The SRS front airbags do not generally inflate if the vehicle is involved in a
side or rear collision, if it rolls over, or if it is involved in a low-speed frontal
collision. But, whenever a collision of any type causes sufficient forward
deceleration of the vehicle, deployment of the SRS front airbags may occur.
Hitting a curb, edge of pavement or hard
surface
Falling into or jumping over a deep hole
Landing hard or falling
Collision from the side
Collision from the rear
Vehicle rollover

531-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
Types of collisions that may not deploy the SRS airbags (SRS side and curtain
shield airbags)
The SRS side and curtain shield airbags may not activate if the vehicle is
subjected to a collision from the side at certain angles, or a collision to the
side of the vehicle body other than the passenger compartment.
The SRS side and curtain shield airbags do not generally inflate if the vehicle
is involved in a frontal or rear collision, if it rolls over, or if it is involved in a
low-speed side collision.
Collision from the side to the vehicle
body other than the passenger compart-
ment
Collision from the side at an angle
Collision from the front
Collision from the rear
Vehicle rollover

541-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
When to contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional
In the following cases, the vehicle will require inspection and/or repair. Con-
tact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional as soon as possible.
Any of the SRS airbags have been inflated.
The front of the vehicle is damaged or
deformed, or was involved in an acci-
dent that was not severe enough to cause
the SRS airbags to inflate.
A portion of a door is damaged or
deformed, or the vehicle was involved
in an accident that was not severe
enough to cause the SRS side and cur-
tain shield airbags to inflate.
The pad section of the steering wheel,
dashboard near the front passenger air-
bag, lower portion of the instrument
panel or door of the glove box is
scratched, cracked, or otherwise dam-
aged.

551-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
The surface of the seats with the side
airbag is scratched, cracked, or other-
wise damaged.
The portion of the front pillars, rear pil-
lars or roof side rail garnishes (padding)
containing the curtain shield airbags
inside is scratched, cracked, or other-
wise damaged.

561-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Airbag manual on-off system
“PASSENGER AIR BAG”
indicator
This indicator light turns on when
the airbag system is on (only when
the power switch is in ON mode).
Airbag manual on-off switch
This system deactivates the front passenger airbag, front passenger
knee airbag and front passenger side airbag.
Only deactivate the airbags when using a child restraint system on
the front passenger seat.
1
2

571-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
Insert the mechanical key into
the cylinder and rotate to the
“OFF” position.
The “OFF” indicator light turns on
(only when the power switch is in
ON mode).
“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunc-
tion in the system. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Neither “ON” nor “OFF” comes on.
The indicator light does not change when the airbag manual on-off switch is
switched to “ON” or “OFF”.
Deactivating the front seat passenger airbag, front passenger
knee airbag and front passenger side airbag
CAUTION
When installing a child restraint system
For safety reasons, always install a child restraint system in a rear seat. In
the event that the rear seat cannot be used, the front seat can be used as long
as the airbag manual on-off system is set to off.
If the airbag manual on-off system is left on, the strong impact of the airbag
deployment (inflation) may cause serious injury or even death.
When a child restraint system is not installed on the front passenger seat
Ensure that the airbag manual on-off system is set to on.
If it is left off, the airbag may not deploy in the event of an accident, which
may result in serious injury or even death.

581-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Safety information for children
It is recommended that children sit in the rear seats to avoid acci-
dental contact with the shift lever, wiper switch etc.
Use the rear door child-protector lock or the window lock switch
to avoid children opening the door while driving or operating the
power window accidentally. (P. 184, 215)
Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, trunk, seats
etc.
Observe the following precautions when children are in the vehi-
cle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
CAUTION
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by playing with
the windows, the moon roof or other features of the vehicle. In addition,
heat build-up or extremely cold temperatures inside the vehicle can be fatal
to children.

591-1. For safe use
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GS450h_300h_OM_OM30D53E_(EE)
For safety and security
Child restraint systems
Studies have shown that installing a child restraint on a rear seat is
much safer than installing one on the front passenger seat.
Choose a child restraint system that suits your vehicle and is
appropriate to the age and size of the child.
For installation details, follow the instructions provided with the
child restraint system.
General installation instructions are provided in this manual.
(P. 71)
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 installation.
Lexus recommends that you use a child restraint system which
conforms to the regulation ECE No.44.
Lexus strongly urges the use of child restraint systems.
Points to remember

601-1. For safe use
GS450h_300h_OM_OM30D53E_(EE)
Child restraint systems are classified into the following 5 groups
according to the regulation ECE No.44:
Group 0: Up to 10 kg (22 lb.) (0 - 9 months)
Group 0+: Up to 13 kg (28 lb.) (0 - 2 years)
Group I: 9 to 18 kg (20 to 39 lb.) (9 months - 4 years)
Group II: 15 to 25 kg (34 to 55 lb.) (4 years - 7 years)
Group III: 22 to 36 kg (49 to 79 lb.) (6 years - 12 years)
In this owner’s manual, the following 3 types of popular child
restraint systems that can be secured with the seat belts are
explained:
Types of child restraints
Baby seat Child seat
Equal to Group 0 and 0+ of ECE
No.44Equal to Group 0+ and I of
ECE No.44
Junior seat
Equal to Group II and III of ECE
No.44