ECU TOYOTA YARIS HATCHBACK 2015 User Guide

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The main SRS airbag system components are shown above. The
SRS airbag system is controlled by the airbag sensor assembly. As
the airbags deploy, a chemical reaction in the inflators quickly fills the
airbags with non-toxic gas to help restrain the motion of the occu-
pants.
WARNING
■ 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
properly.
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 pro-
vides 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 sev-
eral ways:
• Move your seat to the rear as far as you can while still reaching the ped-
als 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 air-
bag toward your chest instead of your head and neck.
The seat should be adjusted as recommended above, while still maintain-
ing control of the foot pedals, steering wheel, and your view of the instru-
ment panel controls.

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WARNING
■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 air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
● Improperly seated and/or restrained infants 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 sys-
tem. Toyota strongly recommends that all infants and children be placed in
the rear seats of the vehicle and proper ly restrained. The rear seats are
safer for infants and children than the front passenger seat. ( P. 55)
●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.

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WARNING
■SRS airbag precautions
●Vehicles without SRS curtain shield
airbags: Do not lean against the front
door.
● Vehicles with SRS curtain shield
airbags: Do not lean against the door,
the roof side rail or the front, side and
rear pillars.
● Do not allow anyone to kneel on the
passenger seat toward the door or put
their head or hands outside the vehicle.
● Vehicles without an SRS driver knee
airbag: Do not attach anything to or lean
anything against areas such as the
dashboard or steering wheel pad.
These items can become projectiles
when the SRS driver and front passen-
ger airbags deploy.
● Vehicles with an SRS driver knee air-
bag: Do not attach anything to or lean
anything 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 driver knee airbags deploy.

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WARNING
■SRS airbag precautions
● Do not strike or apply significant levels of force to the area of the SRS air-
bag components.
Doing so can cause the SRS airbags to malfunction.
● Do not touch any of the component parts immediately after the SRS
airbags have deployed (inflated) as they may be hot.
● If breathing becomes difficult after the SRS airbags have deployed, open a
door or window to allow fresh air in, or leave the vehicle if it is safe to do
so. Wash off any residue as soon as possible to prevent skin irritation.
● Vehicles without SRS curtain shield airbags: If the areas where the SRS
airbags are stored, such as the steering wheel pad, are damaged or
cracked, have them replaced by any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional.
● Vehicles with SRS curtain shield airbags: If the areas where the SRS
airbags are stored, such as the steer ing wheel pad and front and rear pillar
garnishes, are damaged or cracked, have them replaced by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
■ Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications
without consulting any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional. The SRS airbags may malfunction or
deploy (inflate) accidentally, causing death or serious injury.
● Installation, removal, disassembly and repair of the SRS airbags
● Repairs, modifications, removal or replacement of the steering wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars or roof side rails
● Repairs or modifications of the front fender, front bumper, or side of the
occupant compartment
● Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows,
winches
● Modifications to the vehicle’s suspension system
● Installation of electronic devices such as mobile two-way radios (RF-trans-
mitter) and CD players

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■ Conditions under which the SRS airbags may deploy (inflate), other than
a collision
The SRS front airbags, SRS curtain shield airbags may also deploy if a seri-
ous 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 infl ate 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

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■ When to contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional
In the following cases, contact any authorized Toyota 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 front 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 airbags and SRS
curtain shield airbags (if equipped) to
inflate.
● Vehicles without an SRS driver knee air-
bag: The pad section of the steering
wheel or dashboard near the front pas-
senger airbag is scratched, cracked, or
otherwise damaged.
● Vehicles with an SRS driver knee airbag:
The pad section of the steering wheel,
dashboard near the front passenger air-
bag or lower portion of the instrument
panel is scratched, cracked, or other-
wise damaged.

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Airbag manual on-off system
“PASSENGER AIR BAG” indi-
cator
Vehicles without a smart entry
& start system
This indicator light turns on
when the airbag system is on
(only when the engine switch is
in the “ON” position).
Vehicles with a smart entry &
start system
This indicator light turns on
when the airbag system is on
(only when the engine switch is
in IGNITION ON mode).
Airbag manual on-off switch
This system deactivates the front passenger airbag.
Only deactivate the airbags when using a child restraint system
on the front passenger seat.
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WARNING
■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 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 air-
bag 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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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 appro-
priate 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. 6 5 )
● If child restraint system regulations exist in the country where you
reside, please contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional for the child
restraint system installation.
● Toyota recommends that you use a child restraint system which
conforms to the regulation ECE No.44.
Toyota strongly urges the use of child restraint systems.
Points to remember

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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.44
Equal to Group 0+ and I of ECE
No.44
Junior seat
Equal to Group II and III of ECE
No.44