Scion iA. Service Manual - part 4

■

LATCH lower anchor location

WARNING

■

Always remove the head restraint and install child-restraint system

■

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

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Supplemental Restraint System (SRS) Pre-

cautions

The front and side supplemental restraint systems (SRS) include up to
6 air bags. Please verify which kinds 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 restraint systems are designed to provide
supplemental protection in certain situations so seat belts are always
important in the following ways:

Without seat belt usage, the air bags cannot provide adequate protec-
tion during an accident. Seat belt 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 provide no protection to these parts
of the body.

● Hold the driver in a position which allows better control of the vehi-

cle.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

If your vehicle is also equipped with a front passenger occupant clas-
sification system, refer to the Front 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 province. In certain states and prov-
inces, larger children must use a child-restraint system (

P. 41).

Carefully consider which child-restraint system is necessary for your
child and follow the installation directions in this Owner’s Manual as
well as the child-restraint system 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 Scion 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 Scion, 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.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

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-restraint system in the front seat with an
air bag that could deploy

■

Do not sit too close to the driver and front passenger air bags
Sitting too close to the driver and front 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.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

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 side colli-
sion.

■

Do not attach objects on or around 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.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

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 Scion:
Use of any tire or wheel other than those specified for your Scion (

P. 570)

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 Scion 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 acci-
dent resulting in incorrect or unexpected air bag deployment and the pos-
sibility of serious injuries.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

WARNING

■

Do not modify a front door or leave any damage unrepaired. Always
have your Scion 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 Scion 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 damaged 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 Scion 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.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

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 Scion 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 Scion dealer safely dispose of the air bag system or
scrap an air bag equipped vehicle.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

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. 79)

Front air bag sensors

Seat belt pretensioners (

P. 36)

Front passenger occupant classification sensor (

P. 78)

Front passenger occupant classification module

1
2
3
4
5
6
7
8
9

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

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 deployment, refer to “SRS Air Bag
Deployment Criteria” (

P. 74).

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 Scion 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 addi-
tion to the seat belt functions. Be sure to wear seat belts prop-
erly.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

◆

Front Passenger Air Bag

The front passenger air bag is mounted in the front passenger
dashboard.

The inflation mechanism for the
front passenger air bag is the
same as the driver’s air bag, as
mentioned above.

For more details about air bag
deployment, refer to “SRS Air
Bag Deployment Criteria”
(

P. 74).

In addition, the front passenger air bag is designed to only deploy
when the front passenger occupant classification sensor detects a
passenger sitting on the front passenger’s seat. For details, refer to
the front passenger occupant classification system (

P. 78).

◆

Side Air Bags

The side air bags are mounted in the outboard sides of the front
seatbacks.

When the air bag crash sensors
detect a side impact of greater
than moderate force, the sys-
tem inflates the side air bag
only on the side in which the
vehicle was hit. The side air
bag inflates quickly to reduce
injury to the driver or front pas-
senger’s chest caused by
directly hitting interior parts
such as a door or window.

For more details about air bag deployment, refer to “SRS Air Bag
Deployment Criteria” (

P. 74).

In addition, the front passenger side bag is designed to only deploy
when the front passenger occupant classification sensor detects a
passenger sitting on the front passenger’s seat. For details, refer to
the front passenger occupant classification system (

P. 78).

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

◆

Curtain Air Bags

The curtain air bags are mounted in the front and rear window pil-
lars, and the roof edge along both sides.

When the air bag crash sensors detect a side impact of greater
than moderate force, the curtain air bag inflates quickly and helps to
reduce injury mainly to the rear outboard passenger’s head caused
by directly hitting interior parts such as a door or window.

For more details about air bag deployment, refer to “SRS Air Bag
Deployment Criteria” (

P. 74).



In a side impact

Greater than moderate impact to one side of the vehicle will cause
the curtain air bag on that side only to inflate.

Only one side curtain air bag
will deploy on the side of the
vehicle that receives the force
of an impact.



In a roll-over

In response to a vehicle roll-over, both curtain air bags inflate.

Both curtain air bags will deploy
after the roll-over accident is
detected.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety

◆

Warning Light/Beep

A system malfunction or operation conditions are indicated by a
warning.
Refer to Warning/Indicator Lights on P. 156.
Refer to Warning Sound is Activated on P. 522.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

SRS Air Bag Deployment Criteria

This chart indicates the applicable SRS equipment that will deploy
depending on the type of collision.
(The illustrations are the representative cases of collisions.)

SRS

equipment

Types of collision

A severe frontal/near

frontal collision

A severe

side colli-

sion

A roll-over/

near roll-

over

A rear colli-

sion

Front seat

belt pre-

tensioner

(both sides)

(impact

side only)

(both

sides)

No air bag

and front

seat belt

preten-

sioner will

be activated

in a rear

collision.

Driver air

bag

Front pas-

senger air

bag

Side air

bag

(impact

side only)

Curtain air

bag

X (impact

side only)

X (both

sides)

-------------------------------------------------------------------------------------------------------------------------------------------------------------

iA_OM_OM99M17z_(U)

Essential Safety