TOYOTA YARIS iA 2018 (in English) Repair Manual

YARIS iA_OM_OM99Q46z_(U)
611-3. Child Restraint
1
Essential Safety Equipment
■LATCH lower anchor location
WARNING
■Always remove the head restraint and install child-restraint system
■ Always attach the tether strap to the correct tether anchor position
Attaching the tether strap to the incorrect tether anchor position is danger-
ous. In a collision, the tether strap could come off and loosen the child-
restraint system. If the child-restraint system moves it could result in death
or injury to the child.
■ Always install the head restraint and adjust it to the appropriate posi-
tion after removing the child-restraint system
Driving with the head restraint removed is dangerous as impact to the occu-
pant’s head cannot be prevented during emergency braking or in a collision,
which could result in a serious accident, injury or death.
Refer to Head Restraints on P. 27.
Installing a child-restraint system without
removing the head restraint is danger-
ous. The child-restraint system cannot be
installed correctly which may result in
death or injury to the child in a collision.
Anchor bracket
Tether strap

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YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
Supplemental Restraint System (SRS) Pre-
cautions
The front and side supplemental rest raint systems (SRS) include up to
6 air bags. Please verify which ki nds of air bags are equipped on your
vehicle by locating the “SRS AIRBAG” location indicators. These indi-
cators are visible in the area where the air bags are installed.
The air bags are installed in the following locations: • The steering wheel hub (driver air bag)
• The front passenger dashboard (front passenger air bag)
• The outboard sides of the front seatbacks (side air bags) (if equipped)
• The front and rear window pillars, and the roof edge along both
sides (curtain air bags) (if equipped)
The air bag supplemental restrain t systems are designed to provide
supplemental protection in certain situations so seat belts are always
important in the following ways:
Without seat belt usa ge, the air bags cannot provide adequate protec-
tion during an accident. Seat be lt usage is necessary to:
• Keep the occupant from being thrown into an inflating air bag.
• Reduce the possibility of injuries during an accident that is not designed for air bag inflation, such as rear impact.
• Reduce the possibility of injuries in frontal, near frontal or side colli-
sions or roll-over accidents that are not severe enough to activate
the air bags.
• Reduce the possibility of being thrown from your vehicle.
• Reduce the possibility of injuries to lower body and legs during an
accident because the air bags provid e no protection to these parts
of the body.
• Hold the driver in a position which allows better control of the vehi-
cle.

YARIS iA_OM_OM99Q46z_(U)
631-4. SRS Air Bags
1
Essential Safety Equipment
If your vehicle is also equipped with a front passenger occupant clas-
sification system, refer to the Fr ont Passenger Occupant Classifica-
tion System ( →P. 78) for details.
If your vehicle is equipped with a
front passenger occupant classifi-
cation system, the front passen-
ger air bag deactivation indicator
light illuminates for a specified
time after the ignition is switched
ON.
Small children must be protected by a child-restraint system as stipu-
lated by law in every state and prov ince. In certain states and prov-
inces, larger children must us e a child-restraint system (→P. 4 1 ) .
Carefully consider whic h child-restraint system is necessary for your
child and follow the installation directions in this Owner’s Manual as
well as the child-restraint syst em manufacturer’s instructions.
●If it becomes necessary to have the components or wiring system for the
supplementary restraint system modified to accommodate a person with
certain medical conditions in accordance with a certified physician, contact
your Toyota dealer.
● When an air bag deploys, a loud inflation noise can be heard and some
smoke will be released. Neither is likely to cause injury, however, the texture
of the air bags may cause light skin injuries on body parts not covered with
clothing through friction.
● Should you sell your Toyota, we urge you to tell the new owner of its air bag
systems and that familiarization with all instructions about them, from the
Owner’s Manual, is important.
●This highly-visible label is displayed
which warns against the use of a rear-
facing child-restraint system on the front
passenger seat.

64
YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
WARNING
■Seat belts must be worn in air bag equipped vehicles
Depending only on the air bags for protection during an accident is danger-
ous. Alone, air bags may not prevent serious injuries. The appropriate air
bags can be expected to inflate only in the first accident, such as frontal,
near frontal or side collisions or roll-over accidents that are at least moder-
ate. Vehicle occupants should always wear seat belts.
■ Children should not ride in the front passenger seat
Placing a child, 12 years or under, in the front seat is dangerous. The child
could be hit by a deploying air bag and be seriously injured or even killed. A
sleeping child is more likely to lean against the door and be hit by the side
air bag in moderate collision to the front-passenger side of the vehicle.
Whenever possible, always secure a child 12 years and under on the rear
seats with an appropriate child-restraint system for the child’s age and size.
■ Never use a rear-facing child-restra int system in the front seat with an
air bag that could deploy
■ Do not sit too close to the dr iver and front passenger air bags
Sitting too close to the driver and fr ont passenger air bag modules or plac-
ing hands or feet on them is extremely dangerous. The driver and front pas-
senger air bags inflate with great force and speed. Serious injuries could
occur if someone is too close. The driver should always hold onto only the
rim of the steering wheel. The front seat passenger should keep both feet
on the floor. Front seat occupants should adjust their seats as far back as
possible and always sit upright against the seatbacks with seat belts worn
properly.
Rear-facing child-restraint systems on
the front seat are particularly dangerous
even though you may feel assured that a
front passenger air bag will not deploy
based on the fact that the front passen-
ger air bag deactivation indicator light
illuminates. The child-restraint system
can be hit by a deploying air bag and
moved violently backward resulting in
serious injury or death to the child.

YARIS iA_OM_OM99Q46z_(U)
651-4. SRS Air Bags
1
Essential Safety Equipment
WARNING
■Sit in the center of the seat and wear seat belts properly
Sitting too close to the side air bag modules or placing hands on them, or
sleeping up against the door or hanging out the windows is extremely dan-
gerous. The side and curtain air bags inflate with great force and speed
directly expanding along the door on the side the car is hit. Serious injury
could occur if someone is sitting too close to the door or leaning against a
window, or if rear seat occupants grab the sides of the front seatbacks. Give
the side and curtain air bags room to work by sitting in the center of the seat
while the vehicle is moving with seat belts worn properly.
■ Do not attach objects on or around the area where driver and front pas-
senger air bags deploy
Attaching an object to the driver and front passenger air bag modules or
placing something in front of them is dangerous. In an accident, an object
could interfere with air bag inflation and injure the occupants.
■ Do not attach objects on or around the area where a side air bag
deploys
Attaching objects to the front seat in such a way as to cover the outboard
side of the seat in any way is dangerous. In an accident the object could
interfere with the side air bag, which inflates from the outboard side of the
front seats, impeding the added protection of the side air bag system or
redirecting the air bag in a way that is dangerous. Furthermore, the bag
could be cut open releasing the gas.
Do not hang net bags, map pouches or backpacks with side straps on the
front seats. Never use seat covers on the front seats. Always keep the side
air bag modules in your front seats free to deploy in the event of a sid\
e colli-
sion.
■ Do not attach objects on or arou nd the area where a curtain air bag
deploys
Attaching objects to the areas where the curtain air bag activates such \
as
on the windshield glass, side door glass, front and rear window pillars and
along the roof edge and assist grips is dangerous. In an accident the object
could interfere with the curtain air bag, which inflates from the front and rear
window pillars and along the roof edge, impeding the added protection of
the curtain air bag system or redirecting the air bag in a way that is danger-
ous. Furthermore, the bag could be cut open releasing the gas.
Do not place hangers or any other objects on the assist grips. When hang-
ing clothes, hang them on the coat hook directly. Always keep the curtain air
bag modules free to deploy in the event of a side collision or roll-over acci-
dent.

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YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
WARNING
■Do not touch the components of the supplemental restraint system
after the air bags have inflated
Touching the components of the supplemental restraint system after the air
bags have inflated is dangerous. Immediately after inflation, they are very
hot. You could get burned.
■ Never install any front-end equipment to your vehicle
Installation of front-end equipment, such as frontal protection bar (kangaroo
bar, bull bar, push bar, or other similar devices), snowplow, or winches, is
dangerous. The air bag crash sensor system could be affected. This could
cause air bags to inflate unexpectedly, or it could prevent the air bags from
inflating during an accident. Front occupants could be seriously injured.
■ Do not modify the suspension
Modifying the vehicle suspension is dangerous. If the vehicle’s height or the
suspension is modified, the vehicle will be unable to accurately detect a col-
lision or roll-over accident resulting in incorrect or unexpected air bag
deployment and the possibility of serious injuries.
■ To prevent false detection by the air bag sensor system, heed the fol-
lowing
● Do not use tires or wheels other than those specified for your Toyota:
Use of any tire or wheel other than those specified for your Toyota ( →P. 560)
is dangerous. Use of such wheels will prevent the vehicle’s accident detec-
tions system from accurately detecting a collision or roll-over accident result-
ing in incorrect or unexpected air bag deployment and the possibility of
serious injuries.
● Do not overload your vehicle:
Overloading your vehicle is dangerous as it could prevent the air bag
crash sensor system from accurately detecting a collision or roll-over acci-
dent resulting in incorrect or unexpected air bag deployment and the pos-
sibility of serious injuries. The gross axle weight rating (GAWR) and the
gross vehicle weight rating (GVWR) for your vehicle are on the Motor
Vehicle Safety Standard Label on the driver’s door frame. Do not exceed
these ratings.
● Do not drive the vehicle off-road:
Driving your Toyota off-road is dangerous because the vehicle has not
been designed to do so. Driving the vehicle off-road could prevent the air
bag crash sensor system from accurately detecting a collision or roll-over
accident resulting in incorrect or unexpected air bag deployment and the
possibility of serious injuries.

YARIS iA_OM_OM99Q46z_(U)
671-4. SRS Air Bags
1
Essential Safety Equipment
WARNING
■Do not modify a front door or l eave any damage unrepaired. Always
have your Toyota dealer inspect a damaged front door
Modifying a front door or leaving any damage unrepaired is dangerous.
Each front door has a side crash sensor as a component of the supplemen-
tal restraint system. If holes are drilled in a front door, a door speaker is left
removed, or a damaged door is left unrepaired, the sensor could be
adversely affected causing it to not detect the pressure of an impact cor-
rectly during a side collision. If a sensor does not detect a side impact cor-
rectly, the side and curtain air bags and the front seat belt pretensioner may
not operate normally which could result in serious injury to occupants.
■ Do not modify the supplemental restraint system
Modifying the components or wiring of the supplemental restraint system is
dangerous. You could accidentally activate it or make it inoperable. Do not
make any modifications to the supplemental restraint system. This includes
installing trim, badges, or anything else over the air bag modules. It also
includes installing extra electrical equipment on or near system components
or wiring. Your Toyota dealer can provide the special care needed in the
removal and installation of front seats. It is important to protect the air bag
wiring and connections to assure that the bags do not accidentally deploy,
and that the front passenger occupant classification system and the seats
retain an undamaged air bag connection.
■ Do not place luggage or other objects under the front seats
Placing luggage or other objects under the front seats is dangerous. The
components essential to the supplemental restraint system could be dam-
aged, and in the event of a side collision, the appropriate air bags may not
deploy, which could result in death or serious injury. To prevent damage to
the components essential to the supplemental restraint system, do not
place luggage or other objects under the front seats.
■ Do not operate a vehicle with dama ged air bag/seat belt pretensioner
system components
Expended or damaged air bag/seat belt pretensioner system components
must be replaced after any collision which caused them to deploy or dam-
age them. Only a trained Authorized Toyota Dealer can fully evaluate these
systems to see that they will work in any subsequent accident. Driving with
an expended or damaged air bag or pretensioner unit will not afford you the
necessary protection in the event of any subsequent accident which could
result in serious injury or death.

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YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
WARNING
■Do not remove interior air bag parts
Removing any components such as the front seats, front dashboard, the
steering wheel or parts on the front and rear window pillars and along the
roof edge, containing air bag parts or sensors is dangerous. These parts
contain essential air bag components. The air bag could accidentally acti-
vate and cause serious injuries. Always have your Toyota dealer remove
these parts.
■ Properly dispose of the air bag system
Improper disposal of an air bag or a vehicle with live air bags in it can be
extremely dangerous. Unless all safety procedures are followed, injury
could result. Have your Toyota dealer safely dispose of the air bag system
or scrap an air bag equipped vehicle.

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YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
1
Essential Safety Equipment
Supplemental Restraint System Compo-
nents
Side and curtain inflators and air bags
Side crash sensors
Driver/Front passenger inflators and air bags
Air bag/seat belt pretensioner system warning light ( →P. 156)
Roll-over sensor, crash sensors, and diagnostic module (SAS unit)
Front passenger air bag deactivation indicator light ( →P. 7 9 )
Front air bag sensors
Seat belt pretensioners ( →P. 3 6 )
Front passenger occupant classification sensor (→ P. 7 8 )
Front passenger occupant classification module1
2
3
4
5
6
7
8
9
10

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YARIS iA_OM_OM99Q46z_(U)
1-4. SRS Air Bags
How the SRS Air Bags Work
◆Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moder-
ate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision (only on
the side in which the collision occurs) or a roll-over accident is
detected. The pretensioners operate differently depending on what
types of air bags are equipped. For details on the seat belt preten-
sioner operation, refer to the SRS Air Bag Deployment Criteria
( → P. 74).
◆Driver Air Bag
The driver’s air bag is mounted in the steering wheel.
When air bag crash sensors
detect a frontal impact of
greater than moderate force,
the driver’s air bag inflates
quickly helping to reduce injury
mainly to the driver’s head or
chest caused by directly hitting
the steering wheel.
For more details about air bag depl oyment, refer to “SRS Air Bag
Deployment Criteria” ( →P. 7 4 ) .
The driver’s dual-stage air bag controls air bag inflation in two
energy stages. During an impact of moderate severity, the driver’s
air bag deploys with lesser energy, whereas during more severe
impacts, it deploys with more energy.
Your Toyota is equipped with the following types of SRS air
bags. SRS air bags are designed to work together with the seat
belts to help to reduce injuries during an accident. The SRS air
bags are designed to provide further protection for passengers
in addition to the seat belt functions. Be sure to wear seat belts
properly.