Scion iA. Service Manual - part 6

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2-1. Keys

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The system operates only when the driver is in the vehicle or within
operational range while the key is being carried.

■

Starting the Engine

 Operational range

●

Starting the engine may be possible even if the key is outside of the vehicle
and extremely close to a door and window, however, always start the engine
from the driver’s seat.
If the vehicle is started and the key is not in the vehicle, the vehicle will not
restart after it is shut off and the ignition is switched to off.

●

The trunk is out of the assured operational range, however, if the key (smart
key) is operable the engine will start.

●

The engine may not start if the key is placed in the following areas:

• Around the dashboard
• In the storage compartments such as the glove compartment
• On the rear parcel shelf

If a key is left in the vehicle, the functions of the key left in the vehicle
are temporarily suspended to prevent theft of the vehicle.

To restore the functions, press the unlock button on the functions-sus-
pended key in the vehicle.

Operational Range

Interior antenna

Key Suspend Function

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2-2. Door and Locks

Door Locks

When the ignition is switched to ACC or ON, the vehicle lock-out pre-
vention feature prevents you from locking yourself out of the vehicle.

All doors and the trunk lid will automatically unlock if they are locked
using the power door locks with any door or the trunk lid open.

The vehicle lock-out prevention feature does not operate while the
ignition is switched off.

When any door is opened from the outside while the key is inside the
vehicle, the closed doors are locked. All the doors are automatically
unlocked by closing the open door.

The horn sound is heard twice to notify the driver that the key has
been left in the vehicle.

■

Door unlock (control) system with collision detection
This system automatically unlocks the doors in the event the vehicle is
involved in an accident to allow passengers to get out of the vehicle immedi-
ately and prevent being trapped inside. While the ignition is switched ON and
in the event the vehicle receives an impact strong enough to inflate the air
bags, all the doors are automatically unlocked after about 6 seconds have
elapsed from the time of the accident.
The doors may not unlock depending on how an impact is applied, the force
of the impact, and other conditions of the accident.
If door-related systems or the battery is malfunctioning, the doors will not
unlock.

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WARNING

■

Always take all children and pets with you or leave a responsible per-
son with them
Leaving a child or a pet unattended in a parked vehicle is dangerous. In hot
weather, temperatures inside a vehicle can become high enough to cause
brain damage or even death.

■

Do not leave the key in your vehicle with children and keep them in a
place where your children will not find or play with them
Leaving children in a vehicle with the key is dangerous. This could result in
someone being badly injured or even killed.

■

Keep all doors locked when driving
Unlocked doors in a moving vehicle are dangerous. Passengers can fall out
if a door is accidentally opened and can more easily be thrown out in an
accident.

■

Always close all the windows, lock the doors and take the key with you
when leaving your vehicle unattended
Leaving your vehicle unlocked is dangerous as children could lock them-
selves in a hot vehicle, which could result in death. Also, a vehicle left
unlocked becomes an easy target for thieves and intruders.

■

After closing the doors, always verify that they are securely closed
Doors not securely closed are dangerous, if the vehicle is driven with a door
not securely closed, the door could open unexpectedly resulting in an acci-
dent.

■

Always confirm the safety around the vehicle before opening a door
Suddenly opening a door is dangerous.
A passing vehicle or a pedestrian could be hit and cause an accident.

■

When opening or closing a door
Always confirm the conditions around the vehicle before opening/closing
the doors and use caution during strong winds or when parked on an
incline. Not being aware of the conditions around the vehicle is dangerous
because fingers could get caught in the door or a passing pedestrian could
be hit, resulting in an unexpected accident or injury.

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2-2. Door and Locks

All doors and the trunk lid lock automatically when the driver’s door is
locked using the key.

All doors and the trunk lid unlock when the driver’s door is unlocked
and the key is held in the unlock position for one second or longer.

Turn the key toward the front to
lock, toward the back to unlock.

Lock

Unlock

Holding the key in the unlocked
position in the driver’s door lock for
about a second unlocks all doors
and the trunk lid. To unlock only the
driver’s door, insert the key into the
driver’s door lock and turn the key
briefly to the unlock position and
then immediately return it to the
center position.

All doors and the trunk lid can be locked/unlocked by operating the
keyless entry system smart key, refer to Keyless Entry System 
(

P. 88).

Locking, Unlocking with Key

1
2

Locking, Unlocking with Smart Key

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All doors and the trunk lid lock automatically when the lock side is
pressed. They all unlock when the unlock side is pressed.

Driver’s door

Lock

Unlock

Front passenger’s door

Lock

Unlock

To lock all the doors/trunk lid from an open front door, press the lock
side of the door lock switch and then close the door.

When locking the doors this way, be careful not to leave the key inside the
vehicle.

Locking, Unlocking with Door-Lock Switch

1
2

1
2

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2-2. Door and Locks

● When the vehicle speed exceeds 12 mph (20 km/h), all doors and

the trunk lid lock automatically.

● When the ignition is switched off, all doors and the trunk lid unlock

automatically.

These functions can also be disabled so that they do not operate.

■

Auto lock/unlock function setting change using door-lock
switch

The doors and the trunk lid can be set to lock or unlock automati-
cally by selecting any one of the functions from the following table
and using the driver’s door-lock switch on the interior door panel.

Auto Lock/Unlock Function

Function 

number

Function

*

1

1

The auto door-lock function is disabled.

2

All the doors and the trunk lid lock automatically when the
vehicle speed is about 12 mph (20 km/h) or more.

3

All the doors and the trunk lid lock automatically when the
vehicle speed is about 12 mph (20 km/h) or more. All the
doors and the trunk lid unlock when the ignition is switched
from ON to Off.

4

Automatic transaxle vehicles only:
When the ignition is switched ON and the shift lever is shifted
from park (P) to any other gear position, all the doors and the
trunk lid lock automatically.

5

Automatic transaxle vehicles only:
When the ignition is switched ON and the shift lever is shifted
from park (P) to any other gear position, all the doors and the
trunk lid lock automatically.
When the shift lever is shifted to park (P) while the ignition is
switched ON, all the doors and the trunk lid unlock automati-
cally.

6

Automatic transaxle vehicles only:
All the doors and the trunk lid lock automatically when the
vehicle speed is about 12 mph (20 km/h) or more.
When the shift lever is shifted to park (P) while the ignition is
switched ON, all the doors and the trunk lid unlock automati-
cally.

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*

1

: Other settings for the auto door lock function are available at your Scion

dealer. For details consult your Scion dealer. Refer to Customizable Fea-
tures on P. 572.

Settings can be changed using the following procedure.

Safely park the vehicle. All doors must remain closed.

Switch the ignition ON.

Press and hold the lock side of the driver’s door-lock switch
within 20 seconds of switching the ignition ON, and make sure a
beep sound is heard about eight seconds afterwards.

Refer to the auto lock/unlock function setting table, determine the
function number for the desired setting. Press the unlock side of
the driver’s door-lock switch the same number of times as the
selected function number (Ex. If you select function 2, press the
unlock side of the switch only 2 times).

Three seconds after the function setting has been changed, a
beep sound will beep in the amount of the selected function num-
ber. (Ex. Function number 3 = 3 beep sounds)



Manual transaxle vehicles

1

2

3

4

5

Current Function Number

Press unlock side of lock switch once

Function Number 1

Function Number 2

Function Number 3

Press 2 times

Press 3 times

Press 4 times

Cancel setting

Press lock side of lock switch

Cancel setting

Wait for 3 second

Function set (The number of 
beeps heard is the same as the 
selected function number)

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2-2. Door and Locks



Automatic transaxle vehicles

●

Function number 3 is the factory setting for your vehicle.

●

There are only a total of three auto lock/unlock settings available for manual
transaxle vehicles, and six for automatic transaxle vehicles. Be sure to
press the unlock side of the driver’s door-lock switch the correct number of
times according to the selected function number. If the switch is mistakenly
pressed four times on a manual transaxle vehicle or seven times on an
automatic transaxle, the procedure will be cancelled. If this occurs, start the
procedure from the beginning.

●

The doors cannot be locked or unlocked while the setting function is being
performed.

●

The procedure can be cancelled by pressing the lock side of the driver’s
door-lock switch.

Current Function Number

Press unlock side of lock switch once

Function Number 1

Function Number 2

Function Number 3

Press 2 times

Press 3 times

Cancel setting

Press lock side of lock switch

Cancel setting

Wait for 3 second

Function set (The number of 
beeps heard is the same as the 
selected function number)

Press 4 times

Function Number 4

Press 5 times

Function Number 5

Press 6 times

Function Number 6

Press 7 times

WARNING

■

Do not pull the inner handle on a front door
Pulling the inner handle on a front door while the vehicle is moving is dan-
gerous. Passengers can fall out of the vehicle if the door opens accidentally,
which could result in death or serious injury.

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■

Operation from inside

Lock

To lock any door from the inside,
press the door-lock knob.

Unlock

To unlock, pull it outward.

This does not operate the other
door locks.

■

Operation from outside

To lock any door with the door-
lock knob from the outside,
press the door-lock knob to the
lock position and close the door
(holding the door handle in the
open position is not required).

This does not operate the other
door locks.

When locking the door this way, be careful not to leave the key inside
the vehicle.

Locking, Unlocking with Door-Lock Knob

1

2

Door-lock knob

The red indication can be seen when the
door-lock knob is unlocked.

Red indication

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2-2. Door and Locks

These locks are intended to help prevent children from accidentally
opening the rear doors. Use them on both rear doors whenever a
child rides in the rear seat of the vehicle.

Unlock

Lock

If you slide the child safety lock to
the lock position before closing that
door, the door cannot be opened
from the inside. The door can only
be opened by pulling the outside
handle.

Rear Door Child Safety Locks

1
2

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2-2. Door and Locks

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Trunk Lid

WARNING

■

Never allow a person to ride in the trunk
Allowing a person to ride in the trunk is dangerous. The person in the trunk
could be seriously injured or killed during sudden braking or a collision.

■

Do not drive with the trunk lid open
Exhaust gas in the cabin of a vehicle is dangerous. An open trunk lid in a
moving vehicle will cause exhaust gas to be drawn into the cabin. This gas
contains CO (carbon monoxide), which is colorless, odorless, and highly
poisonous, and it can cause loss of consciousness and death. Moreover, an
open trunk lid could cause occupants to fall out in an accident.

■

Using the trunk

●

Before opening the trunk lid, remove any snow and ice accumulation on it.
Otherwise, the trunk lid could close under the weight of the snow and ice
resulting in injury.

●

Be careful when opening/closing the trunk lid during strong winds. If a
strong gust blows against the trunk lid, it could close suddenly resulting in
injury.

●

Fully open the trunk lid and make sure that it stays open. If the trunk lid is
only opened partially, it could slam shut by vibration or wind gusts resulting
in injury.

●

When loading or unloading luggage in the trunk, turn off the engine. Other-
wise, you could get burned by the heat of the exhaust gas.

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2-2. Door and Locks

■

Opening the trunk lid

Push the release button.

■

Closing the trunk lid

Use both hands to push the trunk lid down until the lock snaps shut.
Do not slam it. Pull up on the trunk lid to make sure it is secure.

■

Opening the trunk lid
If the vehicle battery is dead or there is a malfunction in the electrical system
and the trunk lid cannot be unlocked, the trunk lid can be opened by perform-
ing the emergency procedure.
Refer to When Trunk Lid Cannot be Opened on P. 525.

■

Loading golf bags

Up to two golf bags can be carried in the trunk.

Place the bottom of the first
golf bag in the trunk with its
bottom pointed to the left and
fit it into the front of the trunk.

Opening and Closing the Trunk Lid

Luggage Compartment

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Place the second golf bag in
the trunk with its bottom
pointed to the left and fit it
into the back of the trunk.

Some golf bags cannot fit depending on their size.

Your vehicle is equipped with an inside trunk release lever that pro-
vides a means of escape for children and adults in the event they
become locked inside the trunk.
No matter how careful adults might be with keys and locking their
cars, parents should be aware that children may be tempted to play
around vehicles and use the trunk as a hiding place.

Adults are advised to familiarize themselves with the operation and
location of the inside trunk release lever so that all children can be told
about it in an appropriate way, keeping in mind that most vehicles do
not have such levers.

2

Inside Trunk Release Lever

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2-2. Door and Locks

■

Opening the Trunk Lid from the Inside

Slide the inside trunk release
lever in the direction of the
arrow. The lever is made of
material that will glow for hours
in the darkness of the trunk fol-
lowing a brief exposure to ambi-
ent light.

The inside trunk release lever is
located on the inside of the trunk
lid.

WARNING

■

Close the trunk lid, be sure the seat backs are latched and do not allow
children to play inside the vehicle
Leaving the trunk lid open or leaving children in the vehicle with the keys is
dangerous. Children could open the trunk lid and climb inside resulting in
possible injury or death from heat exposure.

■

Always keep the car from being a tempting place to play by latching
the rear seats, doors and the trunk, and keeping the keys where chil-
dren can not play with them
Leaving children or animals unattended in a parked vehicle is dangerous.
Babies left sleeping and children who lock themselves in cars or trunks can
die very quickly from heat prostration. Do not leave your children or pets
alone in a car at any time. Do not leave the car, the rear folding seats or the
trunk unlocked.

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2-3. Fuel and Emission

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Fuel and Engine Exhaust Precautions

Vehicles with catalytic converters or oxygen sensors must use ONLY
UNLEADED FUEL, which will reduce exhaust emissions and keep
spark plug fouling to a minimum.

This vehicle will perform best with fuel listed in the table.

*

: U.S. federal law requires that octane ratings be posted on gasoline station

pumps.

Fuel with a rating lower than 87 octane (91 RON) could cause the
emission control system to lose effectiveness. It could also cause
engine knocking and serious engine damage.

Gasoline blended with oxygenates such as alcohol or ether com-
pounds are generally referred to as oxygenated fuels. The common
gasoline blend that can be used with your vehicle is ethanol blended
at no more than 10 %. Gasoline containing alcohol, such as ethanol or
methanol, may be marketed under the name “Gasohol”.

Vehicle damage and drivability problems resulting from the use of the
following may not be covered by the warranty.
● Gasohol containing more than 10 % ethanol.
● Gasoline or gasohol containing methanol.
● Leaded fuel or leaded gasohol.

Fuel Requirements

Fuel

Octane Rating

*

 (Anti-knock index)

Regular unleaded 

fuel

87 [(R 

 M)/2 method] or above (91 RON or above)

NOTICE

●

USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter and oxygen sensors and
will lead to deterioration of the emission control system and or failures.

●

This vehicle can only use oxygenated fuels containing no more than 10 %
ethanol by volume. Damage to the vehicle may occur when ethanol
exceeds this recommendation, or if the gasoline contains any methanol.
Stop using gasohol of any kind if your vehicle engine is performing poorly.

●

Never add fuel system additives, otherwise the emission control system
could be damaged. Consult your Scion dealer for details.

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2-3. Fuel and Emission

This vehicle is equipped with an emission control system (the catalytic
converter is part of this system) that enables the vehicle to comply
with existing exhaust emissions requirements.

●

Under U.S. federal law, any modification to the original-equipment emission
control system before the first sale and registration of a vehicle is subject to
penalties. In some states, such modification made on a used vehicle is also
subject to penalties.

●

While the engine is off, the sound of a valve opening and closing can be
heard at the rear of the vehicle, however this does not indicate an abnormal-
ity. The vehicle has a selfchecking device and it operates while the engine is
off.

Emission Control System

WARNING

■

Never park over or near anything flammable
Parking over or near anything flammable, such as dry grass, is dangerous.
Even with the engine turned off, the exhaust system remains very hot after
normal use and could ignite anything flammable. A resulting fire could
cause serious injury or death.

NOTICE

Ignoring the following precautions could cause lead to accumulate on the
catalyst inside the converter or cause the converter to get very hot. Either
condition will damage the converter and cause poor performance.

●

USE ONLY UNLEADED FUEL.

●

Do not drive your Scion with any sign of engine malfunction.

●

Do not coast with the ignition switched off.

●

Do not descend steep grades in gear with the ignition switched off.

●

Do not operate the engine at high idle for more than 2 minutes.

●

Do not tamper with the emission control system. All inspections and
adjustments must be made by a qualified technician.

●

Do not push-start or pull-start your vehicle.