Scion iA. Service Manual - part 1

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Pictorial index

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Pictorial Index

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Interior Equipment (View A)

Door-lock knob  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101

Turn and lane-change signal  . . . . . . . . . . . . . . . . . . . . . . . . P. 180

Lighting control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 175

Wiper and washer lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182

DSC OFF switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 197

Tire pressure monitoring system set switch  . . . . . . . . . P. 221

SCBS OFF switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210

Outside mirror switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 113

Door-lock switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 97

Power window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 119

Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 116

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Audio control switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 299

Combination meter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 148

Dashboard illumination knob . . . . . . . . . . . . . . . . . . . . . . . . P. 152

Cruise control switches  . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213

Hazard warning flasher switch . . . . . . . . . . . . . . . . . . . . . . . P. 186

Push button start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 140

Lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 112

Hood release handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426

Remote fuel-filler lid release . . . . . . . . . . . . . . . . . . . . . . . . .  P. 111

Trunk release button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 104

The equipment and installation position varies by vehicle

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Interior Equipment (View B)

SRS air bags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 62

Climate control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234

Rear window defogger switch  . . . . . . . . . . . . . . . . . . . . . . . P. 185

Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 244

Seat warmer switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 22

CD player  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 244

Accessory sockets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 410

External input terminal  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 302

Drive selection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201

Shift lever/Selector lever . . . . . . . . . . . . . . . . . . . . . . . . P. 160, 164

Fuse block (Left side)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 460

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Interior Equipment (View C)

Seat belts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 30

SRS air bag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 62

Bottle holder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412

Sunvisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406

Vanity mirror. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406

Overhead lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407

Rearview mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 114

Glove compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 414

Commander switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 275

Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 188

Cup holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 411

Front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21

Rear seat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 24

The equipment and installation position varies by vehicle

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Exterior Overview

Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426

Windshield wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437

Doors and keys  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 96

Fuel-filler lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 110

Wheels and Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 446

Exterior lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 451

Trunk lid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 104

Child safety locks  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 102

Outside mirror  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 113

The equipment and installation position varies by vehicle

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Essential Safety

Equipment

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1-1. Seats

Seat Precautions................. 18

Front Seat ........................... 21

Rear Seat ............................ 24

Head Restraints .................. 27

1-2. Seat Belt Systems

Seat Belt Precautions ......... 30

Seat Belt ............................. 34

Seat Belt Pretensioner 

and Load Limiting 
Systems ............................ 36

Seat Belt Extender .............. 39

1-3. Child Restraint

Child-Restraint 

Precautions ....................... 41

Child-Restraint System 

Installation......................... 46

Installing Child-Restraint 

Systems ............................ 48

1-4. SRS Air Bags

Supplemental Restraint 

System (SRS) 
Precautions ....................... 62

Supplemental Restraint 

System Components ........ 69

How the SRS Air Bags 

Work ................................. 70

SRS Air Bag Deployment 

Criteria .............................. 74

Limitations to 

SRS Air Bag...................... 76

Front Passenger 

Occupant Classification 
System .............................. 78

Constant Monitoring............ 83

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Seat Precautions

When returning a rear seat to its original position, place the seat belt
in its normal position. Verify that the seat belt pulls out and retracts.

WARNING

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Make sure the adjustable components of a seat are locked in place
Adjustable seats and seatbacks that are not securely locked are dangerous.
In a sudden stop or collision, the seat or seatback could move, causing
injury. Make sure the adjustable components of the seat are locked in place
by attempting to slide the seat forward and backward and rocking the seat-
back.

■

Do not drive with the seatback unlocked
All of the seatbacks play an important role in your protection in a vehicle.
Leaving the seatback unlocked is dangerous as it can allow passengers to
be ejected or thrown around and baggage to strike occupants in a sudden
stop or collision, resulting in severe injury. After adjusting the seatback at
any time, even when there are no other passengers, rock the seatback to
make sure it is locked in place.

■

Adjust the driver’s seat only when the vehicle is stopped
Adjusting the driver’s seat while the vehicle is moving is dangerous. The
driver could lose control of the vehicle and have an accident.

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Do not modify or replace the front seats
Modifying or replacing the front seats such as replacing the upholstery or
loosening any bolts is dangerous. The front seats contain air bag compo-
nents essential to the supplemental restraint system. Such modifications
could damage the supplemental restraint system and result in serious injury.
Consult your Scion dealer if there is any need to remove or reinstall the
front seats.

■

Do not drive with damaged front seats
Driving with damaged front seats is dangerous. A collision, even one not
strong enough to inflate the air bags, could damage the front seats which
contain essential air bag components. If there was a subsequent collision,
an air bag may not deploy which could lead to injuries. Always have your
Scion dealer inspect the front seats, front seat belt pretensioners and air
bags after a collision.

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1-1. Seats

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WARNING

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Do not drive with either front seats reclined
Sitting in a reclined position while the vehicle is moving is dangerous
because you do not get the full protection from seat belts. During sudden
braking or a collision, you can slide under the lap belt and suffer serious
internal injuries. For maximum protection, sit well back and upright.

■

Do not place an object such as a cushion between the seatback and
your back
Putting an object such as a cushion between the seatback and your back is
dangerous because you will be unable to maintain a safe driving posture
and the seat belt cannot function at its full capacity in a collision, which
could result in a serious accident, injury or death.

■

Do not place objects under the seat
The object could get stuck and cause the seat to not be fixed securely, and
result in an accident.

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Do not stack cargo higher than the seatbacks
Stacking luggage or other cargo higher than the seatbacks is dangerous.
During sudden braking or a collision, objects can fly around and become
projectiles that may hit and injure passengers.

■

Make sure luggage and cargo is secured before driving
Not securing cargo while driving is dangerous as it could move or be
crushed during sudden braking or a collision and cause injury.

■

Never allow a passenger to sit or stand on the folded seatback while
the vehicle is moving
Driving with a passenger on the folded seatback is dangerous. Allowing a
child to sit up on the folded seatback while the vehicle is moving is particu-
larly dangerous. In a sudden stop or even a minor collision, a child not in a
proper seat or child-restraint system and seat belt could be thrown forward,
back or even out of the vehicle resulting in serious injuries or death. The
child in the baggage area could be thrown into other occupants and cause
serious injury.

■

Never give the car keys to children and do not allow them to play in the
vehicle
Playing with the folding rear seats is dangerous. Once the seatbacks are
back up, a child in the trunk would not be able to get out the way they had
entered. If you have small children, keep the seatbacks locked.

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1-1. Seats

WARNING

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Always leave your car locked and keep the car keys safely away from
children
Leaving your car unlocked or the keys in reach of children is dangerous.
Children who find their way into the trunk through an unlocked rear seat-
back or an open trunk can become accidentally locked in the trunk. This
could result in death or brain damage from heat prostration, particularly in
the summer. Always lock the doors and the trunk, and as an added mea-
sure, keep the rear seatbacks locked, whether you have children in your
home or not.

■

When operating a seat
When operating a seat, be careful not to put your hands or fingers near the
moving parts of the seat or on the side trim to prevent injury.

■

When adjusting a seatback of a front seat
When returning a rear-reclined seatback of a front seat to its upright posi-
tion, make sure you hold onto the seatback with your other hand while oper-
ating the lever. If the seatback is not supported, it will flip forward suddenly
and could cause injury.

NOTICE

When moving the seats, make sure there is no cargo in the surrounding
area. If the cargo gets caught it could damage the cargo.

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1-1. Seats

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Front Seat

Seat Slide

To move a seat forward or backward, raise the lever and slide the seat to
the desired position and release the lever.

Make sure the lever returns to its original position and the seat is locked in
place by attempting to push it forward and backward.

Height Adjustment (Driver’s Seat)

To adjust the seat height, move the lever up or down.

Seat Recline

To change the seatback angle, lean forward slightly while raising the lever.
Then lean back to the desired position and release the lever.

Make sure the lever returns to its original position and the seatback is
locked in place by attempting to push it forward and backward.

Seat Operation

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1-1. Seats

The front seats are electrically heated. The ignition must be switched
ON.

Press the seat warmer switch to
illuminate the indicator light while
the ignition is switched ON. The
mode changes as follows each
time the seat warmer switch is
pressed.

OFF

High

Mid

Low

●

If the ignition is switched off while the seat warmer is operating (High, Mid or
Low) and then switched ON again, the seat warmer will automatically oper-
ate at the temperature set before switching off the ignition.

●

Use the seat warmer when the engine is running. Leaving the seat warmer
on for long periods with the engine not running could cause the battery
power to be depleted.

●

The temperature of the seat warmer cannot be adjusted beyond High, Mid
and Low because the seat warmer is controlled by a thermostat.

Seat Warmer (if equipped)

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WARNING

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Be careful when using the seat warmer
The heat from the seat warmer may be too hot for some people, as indi-
cated below, and could cause a low-temperature burn.

●

Infants, small babies, elderly people, and physically challenged people

●

People with delicate skin

●

People who are excessively fatigued

●

People who are intoxicated

●

People who have taken sleep-inducing medicine such as sleeping pills or
cold medicine

■

Do not use the seat warmer with anything having high moisture-reten-
tion ability such as a blanket or cushion on the seat
The seat may be heated excessively and cause a low-temperature burn.

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1-1. Seats

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WARNING

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Do not use the seat warmer even when taking a short nap in the vehicle
The seat may be heated excessively and cause a low-temperature burn.

■

Do not place heavy objects with sharp projections on the seat, or insert
needles or pins into it
This could cause the seat to become excessively heated and result in injury
from a minor burn.

NOTICE

Do not use solvents to clean the seat. It may damage the seat surface and
the heater.

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1-1. Seats

Rear Seat

By lowering the rear seatbacks the luggage compartment space can
be expanded.

Split Folding the Seatback

WARNING

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Do not drive the vehicle with occupants on folded down seatbacks or
in the luggage compartment.
Putting occupants in the luggage compartment is dangerous because seat
belts cannot be fastened which could lead to serious injury or death during
sudden braking or a collision.

■

Do not allow children to play inside the vehicle with the seatbacks low-
ered.
Allowing children to play in the vehicle with the seatbacks folded down is
dangerous. If a child enters the luggage compartment and the seatbacks
were raised back up, the child may become trapped in the luggage com-
partment which could lead to an accident.

■

Tightly secure cargo in the luggage compartment when it is trans-
ported with the seatbacks folded down.
Driving without tightly securing cargo and luggage is dangerous as it could
move and become an obstruction to driving during emergency braking or a
collision resulting in an unexpected accident.

■

When transporting cargo, do not allow the cargo to exceed the height
of the seatbacks.
Transporting cargo stacked higher than the seatbacks is dangerous as visi-
bility to the rear and sides of the vehicle is reduced which could interfere
with driving operations and lead to an accident.

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1-1. Seats

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Lower the head restraint all the way down.
Refer to Head Restraints on P. 27.

Open the trunk lid and pull the
lever of the seatback you want
to fold down.

Open a rear door and fold the rear seat forward.

Lowering the seatbacks

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2

NOTICE

Check the position of a front seat before folding a rear seatback.
Depending on the position of a front seat, it may not be possible to fold a
rear seatback all the way down because it may hit the seatback of the front
seat which could scratch or damage the front seat or its pocket. Remove the
head restraint on the rear outboard seat if necessary.

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1-1. Seats

Make sure that the seat belt
passes through the seat belt
guide correctly and it is not
twisted, then raise the seatback
while preventing the seat belt
from being caught in the seat-
back.

Press the seatback rearward and lock it in place. After returning the
seatback to its upright position, make sure it is securely locked.

To return the seatback to its upright position

Seat belt guide

1

WARNING

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When returning a seatback to its upright position, make sure the 3-
point seat belt is not caught in the seatback and the 3-point seat belt is
not twisted.
If the seat belt is used while it is twisted and caught in the seatback, the
seat belt cannot function at its full capacity, which could cause serious injury
or death.

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Head Restraints

Adjust the head restraint so that
the center is even with the top of
the passenger’s ears.

To raise a head restraint, pull it up to the desired position.

To lower the head restraint, press the stop-catch release, then push
the head restraint down.

■

Front outboard seat

Your vehicle is equipped with head restraints on all outboard
seats and the rear center seat. The head restraints are intended
to help protect you and the passengers from neck injury.

WARNING

■

Always drive with the head restraints installed when seats are being
used and make sure they are properly adjusted. In addition, always
raise the head restraints on all rear seats when they are being used
Driving with the head restraints adjusted too low or removed is dangerous.
With no support behind your head, your neck could be seriously injured in a
collision.

Height Adjustment