2018 TOYOTA YARIS iA key battery

YARIS iA_OM_OM99Q46z_(U)
1453-1. Start/Stop Engine
3
When Driving
If the engine cannot be started due to a dead key battery, the engine
can be started using the following procedure:Continue to depress the brake pedal firmly until the engine has
completely started.
Manual transaxle:
Continue to depress the clutch p edal firmly until the engine has
completely started.
Verify that the push button start indication light (green) flashes.
The push button start indicator light (green) will flash even if the push but-
ton start is pressed before depressing the clutch pedal (manual transaxle)
or the brake pedal (automatic transaxle). If the clutch pedal is depressed
(manual transaxle) or the brake pedal is depressed (automatic transaxle)
under this condition, the engine can be started by resuming the procedure
following this.
Touch the push button start
using the backside of the key
(as shown) while the push but-
ton start indicator light (green)
flashes.
When touching the push button
start using the backside of the key
as shown in the illustration, touch
the push button start with the lock
switch side of the key facing up.
Verify that the push button start indicator light (green) turns on.
Press the push button star t to start the engine.
●The engine cannot be started unless the clutch pedal is fully depressed
(manual transaxle) or the brake pedal is fully depressed (automatic tran-
saxle).
● If there is a malfunction with the push button start function, the push button
start indicator light (amber) flashes. In this case, the engine may start, how-
ever, have the vehicle checked at your Toyota dealer as soon as possible.
● If the push button start indicator light (green) does not illuminate, perform
the operation from the beginning again. If it does not illuminate, have the
vehicle checked at your Toyota dealer.
● To switch the ignition position without starting the engine, perform the follow-
ing operations after the push button start indicator light (green) turns on.
Release the clutch pedal (manual transaxle) or brake pedal (automatic
transaxle).
Engine Start Function Wh en Key Battery is Dead
1
2
3
Smart Key
Indicator light
Push button start
4
5
6
1

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YARIS iA_OM_OM99Q46z_(U)
3-1. Start/Stop Engine
Press the push button start to switch the ignition position. The ignition
switches in the order of ACC, ON, and off each time the push button start
is pressed. To switch the ignition position again, perform the operation
from the beginning.
If the KEY warning light (red) illuminates, or the push button start indi-
cator light (amber) flashes, this coul d indicate that the engine may not
start using the usual starting met hod. Have your vehicle inspected at
your Toyota dealer as soon as possi ble. If this occurs, the engine can
be force-started. Press and hold th e push button start until the engine
starts. Other procedures necessary for starting the engine such as
having the key in the cabin, and depressing the clutch pedal (manual
transaxle) or the brake pedal (automatic transaxle) are required.
NOTICE
When starting the engine by holding the smart key over the push button
start due to a dead key battery or a malfunctioning key, be careful not to
allow the following, otherwise the signal from the key will not be received
correctly and the engine may not start.
● Devices for electronic purchases, or security passage touch or come near
the key.
Emergency Operation for Starting the Engine
2
●Metal parts of other keys or metal
objects touch the key.
● Spare keys or keys for other vehicles
equipped with an immobilizer system
touch or come near the key.

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YARIS iA_OM_OM99Q46z_(U)
3-1. Start/Stop Engine
3
When Driving
Turning the Engine Off
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition posi-
tion is off.
● The cooling fan in the engine compartment could turn on for a few minutes
after the ignition is switched from ON to OFF, whether or not the A/C is on or
off, to cool the engine compartment quickly.
● When the push button start is pressed from ON to ACC or OFF, the KEY
indicator light (green) may flash for approximately 30 seconds indicating
that the remaining battery power of the key is low.
Replace with a new battery before the key becomes unusable.
Refer to Key Battery Replacement on P. 436.
● Automatic transaxle:
If the engine is turned off while the selector lever is in a position other than
P, the ignition switches to ACC.
Continuously pressing the push button start or quickly pressing it two
or more times while the engine is running or the vehicle is being
driven will turn the engine off immediately. The ignition switches to
ACC.
WARNING
■Do not stop the engine wh ile the vehicle is moving
Stopping the engine while the vehicle is moving for any reason other than in
an emergency is dangerous. Stopping the engine while the vehicle is mov-
ing will result in reduced braking ability due to the loss of power braking,
which could cause an accident and serious injury.
NOTICE
When leaving the vehicle, make sure the push button start is off.
Emergency Engine Stop
1
2
3

402
YARIS iA_OM_OM99Q46z_(U)
4-4. Interior Equipment
■Trunk Light
The trunk light is on when the
lid is open and off when it’s
closed.
■Map Lights
The map lights will not turn off even if the lens is pressed in the following
cases:
●The overhead light switch is in the ON position.
● The overhead light switch is in the door position with the door open.
● The illuminated entry system is on.
The overhead lights turn on when any of the following operations is
done with the overhead light switch in the DOOR position and the igni-
tion switched off. • Turn on for about 30 seconds when the driver’s door is unlocked.
• Turn on for about 15 seconds when a door is opened with a key left in the vehicle and then the door is closed.
• Turn on for about 5 seconds when a door is opened from the out- side with a key being carried and then the door is closed.
The overhead lights turn on for about 15 seconds when the ignition is
switched off with the overhead light switch in the DOOR position.
The overhead lights turn off immediately in the following cases: • The ignition is switched on and all doors are closed.
• The driver’s door is locked.
NOTICE
■ Overhead Lights and Map Lights
Do not leave the lights on for long periods while the engine is turned off.
Otherwise, the battery power could be depleted.
■ Trunk Light
To prevent the battery from being discharged, do not leave the trunk open
for a long period when the engine is not running.
Illuminated Entry System

YARIS iA_OM_OM99Q46z_(U)
4034-4. Interior Equipment
4
Interior Features
●Battery saver
If any door is left open with the overhead light switch in the DOOR posi\
tion,
or the trunk lid is left open, the overhead light or trunk light turns off after
about 30 minutes to prevent battery depletion.
● To prevent battery depletion, if the interior lights remain turned on (the inte-
rior light switch is in the ON position or an interior light is turned on by press-
ing the lens of the interior light), they turn off automatically under the
following conditions:
• No operations are done for about 30 minutes after the ignition is switched
off.
• When the LOCK button on the key is pressed after the ignition is switched off (interior lights turn off a few seconds).
In addition, if the following operations are performed after turning the inte-
rior lights off, they will turn on again.
• The ignition is switched to a position other than OFF.
• A door is opened.
• A door is unlocked.
● The operation of the illuminated entry system can be changed.
Refer to Customizable Features on P. 562.

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YARIS iA_OM_OM99Q46z_(U)
5Maintenance and Care
5-1. Essential InformationIntroduction ....................... 412
5-2. Scheduled Maintenance Maintenance Monitor ........ 414
5-3. Owner Maintenance Owner Maintenance Precautions ..................... 417
Hood ................................. 419
Engine Compartment Overview ......................... 421
Engine Oil ......................... 422
Engine Coolant ................. 425
Brake/Clutch Fluid............. 428
Window Washer Fluid ....... 429
Body Lubrication ............... 430
Wiper Blades..................... 431
Battery............................... 434
Key Battery Replacement ................... 436
Tires .................................. 439
Light Bulbs ........................ 445
Fuses ................................ 455
5-4. Appearance Care Exterior Care ..................... 462
Interior Care ...................... 470

436
YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
Key Battery Replacement
If the buttons on the smart key are inoperable and the operation indi-
cator light does not flash, the battery may be dead.
Replace with a new battery before the smart key becomes unusable.
The following conditions indicate that the battery power is low: • The KEY indicator light (green) flashes in the combination meter for about 30 seconds after the engine is turned off.
• The system does not operate and the operation indicator light on the smart key does not flash when the buttons are pressed.
• The system’s operational range is reduced.
Replacing the battery at your To yota dealer is recommended to pre-
vent damage to the key. If replacing the battery by yourself, follow the
instruction below.
■Replacing the key battery
Press the knob and pull out
the auxiliary key.
Twist a tape-wrapped flat-
head screwdriver in the
direction of the arrow and
open the cover slightly.
Knob1
Cover
2

4385-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
Close the cover.
Reinsert the auxiliary key.7
NOTICE
●Make sure the battery is installed correctly. Battery leakage could occur if it
is not installed correctly.
● When replacing the battery, be careful not to touch any of the internal cir-
cuitry and electrical terminals, bend the electrical terminals, or get dirt in
the smart key as the smart key could be damaged.
● There is the danger of explosion if the battery is not correctly replaced.
● Dispose of used batteries according to the following instructions.
• Insulate the plus and minus terminals of the battery using cellophane or
equivalent tape.
• Never disassemble.
• Never throw the battery into fire or water.
• Never deform or crush.
● Replace only with the same type battery (CR2025 or equivalent).
8
●Be careful not to allow the rubber ring
shown in the figure to be scratched or
damaged.
● If the rubber ring detaches, reattach it
before inserting a new battery.Rubber ring