2013 Lexus IS300h ECU

431-1. For safe use
1
For safety and security
IS300h_EE(OM53B95E)
SRS front airbags
SRS driver airbag/front passenger airbag
Can help protect the head and chest of the driver and front passenger
from impact with interior components
SRS knee airbags
Can help provide driver and front passenger protection
SRS side and curtain shield airbags
SRS side airbags
Can help protect the torso of the front seat occupants
SRS curtain shield airbags
Can help protect primarily the head of occupants in the outer seats
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They
work together with the seat belts to help reduce the risk of death or seri-
ous injury.
1
2
3
4

451-1. For safe use
1
For safety and security
IS300h_EE(OM53B95E)
CAUTION
SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.
The driver and all passengers in the vehicle must wear their seat belts prop-
erly.
The SRS airbags are supplemental devices to be used with the seat belts.
The SRS driver airbag deploys with considerable force, and can cause death
or serious injury especially if the driver is very close to the airbag.
Since the risk zone for the driver’s airbag is the first 50 - 75 mm (2 - 3 in.) of
inflation, placing yourself 250 mm (10 in.) from your driver airbag provides
you with a clear margin of safety. This distance is measured from the center
of the steering wheel to your breastbone. If you sit less than 250 mm (10 in.)
away now, you can change your driving position in several ways:
• Move your seat to the rear as far as you can while still reaching the pedals
comfortably.
• Slightly recline the back of the seat.
Although vehicle designs vary, many drivers can achieve the 250 mm (10
in.) distance, even with the driver seat all the way forward, simply by
reclining the back of the seat somewhat. If reclining the back of your seat
makes it hard to see the road, raise yourself by using a firm, non-slippery
cushion, or raise the seat if your vehicle has that feature.
• If your steering wheel is adjustable, tilt it downward. This points the airbag
toward your chest instead of your head and neck.
The seat should be adjusted as recommended above, while still maintaining
control of the foot pedals, steering wheel, and your view of the instrument
panel controls.

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
1
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
1
For safety and security
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
1
For safety and security
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

531-1. For safe use
1
For safety and security
IS300h_EE(OM53B95E)
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
1
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.