ECU Lexus GS300h 2017 User Guide

461-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■SRS airbag precautions
●The SRS front passenger airbag also deploys with considerable force, and can cause
death or serious injury especially if the fron t passenger is very close to the airbag. The
front passenger seat should be as far from the airbag as possible with the seatback
adjusted, so the front passenger sits upright.
●Improperly seated and/or restrained infant s and children can be killed or seriously
injured by a deploying airbag. An infant or child who is too small to use a seat belt
should be properly secured using a child restraint system. Lexus strongly recom-
mends that all infants and children be placed in the rear seats of the vehicle and prop-
erly restrained. The rear seats are safer for infants and children than the front
passenger seat. ( P. 57)
●Do not sit on the edge of the seat or lean
against the dashboard.
●Do not allow a child to stand in front of the
SRS front passenger airbag unit or sit on the
knees of a front passenger.
●Do not allow the front seat occupants to hold
items on their knees.
●Do not lean against the door, the roof side rail
or the front, side and rear pillars.

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■SRS airbag precautions
●Do not hang coat hangers or other hard obje cts on the coat hooks. All of these items
could become projectiles and may cause deat h or serious injury, should the SRS cur-
tain shield airbags deploy.
●If a vinyl cover is put on the area where the SRS knee airbag will deploy, be sure to
remove it.
●Do not use seat accessories which cover the parts where the SRS side airbags inflate
as they may interfere with inflation of th e airbags. Such accessories may prevent the
side airbags from activating correctly, disable the system or cause the side airbags to
inflate accidentally, resulting in death or serious injury.
●Do not allow anyone to kneel on the passen-
ger seat toward the door or put their head or
hands outside the vehicle.
●Do not attach anything to or lean anything
against areas such as the dashboard, steering
wheel pad, lower portion of the instrument
panel and door of the glove box.
These items can become projectiles when the
SRS driver, front passenger and knee airbags deploy.
●Do not attach anything to areas such as a door,
windshield glass, side door glass, front or rear
pillar, roof side rail and assist grip. (Except for
the speed limit sticker P. 516)

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may be sustained from SRS airbags, due to the
extremely high speed deployment (inflation) by hot gases.
●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.
●Vehicles with ERA-GLONASS: If the SRS ai rbags deploy, the system is designed to
send an emergency call * to the Public Safety Answer ing Point (PSAP), notifying them
of the vehicle’s location (without needing to push the “SOS” button) and an agent will
attempt to speak with the occupants to ascertain the level of emergency and assistance
required. If the occupants are unable to communicate, the agent automatically treats
the call as an emergency and helps to di spatch the necessary emergency services.
(  P. 384)
* : In some cases, the call cannot be made. ( P. 386)
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the set thresh-
old 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 cons iderably higher in the following situations:

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
■Types of collisions that may not deploy the SR S airbags (SRS side and curtain shield air-
bags)
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 rear collision, if it rolls over, or if it is involved in a low-speed side or low-speed frontal
collision.
●Collision from the side to the vehicle body
other than the passenger compartment
●Collision from the side at an angle
●Collision from the rear
●Vehicle rollover

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
●The surface of the seats with the side airbag is
scratched, cracked, or otherwise damaged.
●The portion of the front pillars, rear pillars or
roof side rail garnishes (padding) containing
the curtain shield airbags inside is scratched,
cracked, or otherwise damaged.

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1-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE) Insert the mechanical key into the cylin-
der 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 malfunction in the sys-
tem. Have the vehicle inspected by any au thorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
●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 passenge r airbag, front passenger knee air-
bag and front passenger side airbag
WARNING
■When installing a child restraint system
For safety reasons, always install a child rest raint 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.

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1-1. For safe use
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GS450h_300h_OM_OM30F92E_(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 restr aint
system.
General installation instructions are provided in this manual. ( P. 66)
● If child restraint system regulations exist in the country where you reside,
please contact any authorized Lexus reta iler or Lexus authorized repairer, or
any reliable repairer 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

581-1. For safe use
GS450h_300h_OM_OM30F92E_(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 sys
tems
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.44 Equal to Group 0+ and I of ECE
No.44
Junior seat
Equal to Group II and III of ECE No.44

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For safety and security
GS450h_300h_OM_OM30F92E_(EE) Information provided in the table shows your child restraint system suitability for
various seating positions.
Child restraint system suitabilit
y for various seating positions
Front passenger seat
Rear seatAirbag manual
on-off switch
ONOFFOutboardCenter
0
Up to 10 kg (22 lb.)
(0 - 9 months) XU
*1
U, L X
0+
Up to 13 kg (28 lb.)
(0 - 2 years) XU
*1
U, L X
I
9 to 18 kg
(20 to 39 lb.)
(9 months - 4 years) Rear-
facing — X U*1
U*2
X
Forward-
facing — UF *1
II, III
15 to 36 kg
(34 to 79 lb.)
(4 - 12 years) UF
*1
U*1
U*2
XMass groupsSeating
position

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For safety and security
GS450h_300h_OM_OM30F92E_(EE) The child restraint systems mentioned in the table may not be available outside of
the EU area.
Other child restraint systems which are
different from the systems mentioned in
the table can be used, but the suitability of the systems must be carefully checked
with the child restraint system manufacturer concerned and the seller of thos e
seats.
Child restraint system list
Mass groupsChild restraint systemsCategory
0
Up to 10 kg (22 lb.)
(0 - 9 months)LEXUS G 0+, BABYSAFE PLUS with
SEAT BELT FIXATION, BASE PLAT-
FORMSemi-universal
0+
Up to 13 kg (28 lb.)
(0 - 2 years)LEXUS G 0+, BABYSAFE PLUS with
SEAT BELT FIXATION, BASE PLAT-
FORMSemi-universal