ECU Lexus IS300h 2013 User Guide

461-1. For safe use
IS300h_EE(OM53B95E)
CAUTION
SRS airbag precautions
The SRS front passenger airbag also deploys with considerable force, and can
cause death or serious injury especially if the front passenger is very close to
the airbag. The front passenger seat should be as far from the airbag as possi-
ble with the seatback adjusted, so the front passenger sits upright.
Improperly seated and/or restrained infants and children can be killed or seri-
ously 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 recommends that all infants and children be placed in the rear seats
of the vehicle and properly restrained. The rear seats are safer for infants and
children than the front passenger seat. (P. 61)
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.

471-1. For safe use
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For safety and security
IS300h_EE(OM53B95E)
CAUTION
SRS airbag precautions
Do not hang coat hangers or hard objects on the coat hooks. All of these items
could become projectiles and may cause death or serious injury, should the
SRS curtain 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 the 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 pas-
senger seats toward the door or put their
head or hands outside the vehicle.
Do not attach anything to or lean any-
thing against areas such as the dashboard,
steering wheel pad and lower portion of
the instrument panel.
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. 533)

491-1. For safe use
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IS300h_EE(OM53B95E)
If the SRS airbags deploy (inflate)
Bruising and slight abrasions may result from contact with a deploying (inflat-
ing) 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 front seats, 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 following
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 preten-
sioners 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.] vehicle collid-
ing with the vehicle cabin from a direction perpendicular to the vehicle orienta-
tion 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.

511-1. For safe use
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IS300h_EE(OM53B95E)
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 sub-
jected 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 airbags do not generally inflate if the vehicle is involved in a fron-
tal or rear collision, if it rolls over, or if it is involved in a low-speed side colli-
sion.
The SRS 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 front
Collision from the rear
Vehicle rollover
Collision from the rear
Vehicle rollover

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The surface of the seats with the side air-
bag is scratched, cracked, or otherwise
damaged.
The portion of the front pillars, rear pillars
or roof side rail garnishes (padding) con-
taining the curtain shield airbags inside is
scratched, cracked, or otherwise damaged.

551-1. For safe use
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For safety and security
IS300h_EE(OM53B95E)
“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunction 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”.
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.

571-1. For safe use
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IS300h_EE(OM53B95E)
The Pop Up Hood will operate when the vehicle detects an impact such as
the following:
The front bumper detects a frontal impact equivalent to or greater than
that of a pedestrian while the vehicle being driven within the opera-
tional speed range of approximately 25 to 55 km/h (16 to 34 mph).
(The system is operated by an impact of threshold level or greater, even
in the case of a minor collision that may not leave a trace on the front
bumper. Also, depending on the impact conditions or vehicle speed,
the system may be operated by a collision with a light or small object
or a small animal.)
In other situations the system may operate when an impact is applied to
the lower part of the vehicle or front bumper, such as the following:
• Colliding with a curb
• Falling into a deep hole
• Landing hard
• Hitting the slope of a parking lot, an undulating road, a protruding
object or falling object
Pop Up Hood operational conditions
CAUTION
When the Pop Up Hood is operated
Do not pull the hood lock release lever. Doing so after the Pop Up Hood has
operated will further raise the hood and may cause an injury.
Do not drive with the hood raised, as doing so may block the driver’s vision,
possibly causing an accident.
Do not forcibly push down the hood. As the popped up hood cannot be low-
ered by hand, doing so may deform the hood or cause an injury.
If the Pop Up Hood has operated, have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional. If the Pop Up Hood has operated, stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Do not touch the lifters immediately after the Pop Up Hood has operated, as
the lifters may be hot and burn you.

591-1. For safe use
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For safety and security
IS300h_EE(OM53B95E)
NOTICE
Pop Up Hood precautions
Make sure to close the hood before driving, as the system may not operate
properly if the hood is not fully closed.
Make sure that all 4 tires are of the specified size and inflated to the specified
tire pressure (P. 570). If tires of a different size are used, the system may
not operate properly.
If something has hit the area around the front bumper, the sensors may be
damaged even if the Pop Up Hood has not operated. Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional.
Do not remove or repair the parts or wiring of the Pop Up Hood, as doing so
may cause accidental operation or prevent the system from operating prop-
erly. If repair or replacement is necessary, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Do not remove such components as the front bumper, hood or suspension, or
replace them with non-genuine parts, as doing so may prevent the system
from operating properly.
Do not install anything to the front bumper or hood, as doing so may prevent
the sensors from detecting an impact correctly and prevent the system from
operating properly.
Do not close the hood with force or apply load to the lifters, as doing so may
damage the lifters and prevent the system from operating properly.
Do not modify the suspension, as changes made to the vehicle height may
prevent the system from operating properly.

611-1. For safe use
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For safety and security
IS300h_EE(OM53B95E)
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 appropri-
ate 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. 7 0 )
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 con-
forms to the regulation ECE No.44.
Child restraint systems
Lexus strongly urges the use of child restraint systems.
Points to remember

621-1. For safe use
IS300h_EE(OM53B95E)
Child restraint systems are classified into the following 5 groups accord-
ing 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