change key battery TOYOTA YARIS HATCHBACK 2021 Owners Manual

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YARIS(HB) Owner's Manual_Europe_MK0001_en
3-2. Opening, closing and locking the doors
Before driving
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit
radio waves) are being used nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Another vehicle’s electronic key or a
wireless key that emits radio waves
• Personal computers or personal digi-
tal assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the
rear window
●When the electronic key is placed
near a battery charger or electronic
devices
●When the vehicle is parked in a pay
parking spot where radio waves are
emitted
If the doors cannot be locked/unlocked
using the smart entry & start system,
lock/unlock the doors by performing any
of the following:
●Bring the electronic key close to either
front door handle and operate the
entry function.
●Operate the wireless remote control.
If the doors cannot be locked/unlocked
using the above methods, use the
mechanical key. (→P.400)
If the engine cannot be started using the
smart entry & start system refer to
P.400.
■Note for the entry function
●Even when the electronic key is within
the effective range (detection areas),
the system may not operate properly
in the following cases:
• The electronic key is too close to the
window or outside door handle, near
the ground, or in a high place when
the doors are locked or unlocked.
• The electronic key is on the instru-
ment panel, luggage cover or floor, or
in the door pockets or glove box when the engine is started or engine switch
modes are changed.
●Do not leave the electronic key on top
of the instrument panel or near the
door pockets when exiting the vehicle.
Depending on the radio wave recep-
tion conditions, it may be detected by
the antenna outside the cabin and the
door will become lockable from the
outside, possibly trapping the elec-
tronic key inside the vehicle.
●As long as the electronic key is within
the effective range, the doors may be
locked or unlocked by anyone. How-
ever, only the doors detecting the
electronic key can be used to unlock
the vehicle.
●Even if the electronic key is not inside
the vehicle, it may be possible to start
the engine if the electronic key is near
the window.
●The doors may unlock or lock if a
large amount of water splashes on the
door handle, such as in the rain or in a
car wash when the electronic key is
within the effective range. (The doors
will automatically be locked after
approximately 30 seconds if the doors
are not opened and closed.)
●If the wireless remote control is used
to lock the doors when the electronic
key is near the vehicle, there is a pos-
sibility that the door may not be
unlocked by the entry function. (Use
the wireless remote control to unlock
the doors.)
●Touching the door lock or unlock sen-
sor while wearing gloves may prevent
lock or unlock operation.
●When the lock operation is performed
using the lock sensor, recognition sig-
nals will be shown up to two consecu-
tive times. After this, no recognition
signals will be given.
●If the door handle becomes wet while
the electronic key is within the effec-
tive range, the door may lock and
unlock repeatedly. In that case, follow
the following correction procedures to

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4-2. Driving procedures
Driving
Some electrical components such as
the audio system can be used.
3 ON (“ON” position)
All electrical components can be used.
4START (“START” position)
For starting the engine.
■Turning the key from ACC to OFF
1 Shift the shift lever to P (Multidrive)
or N (manual transmission).
2 Push in the key and turn it to OFF.
■Key reminder function
A buzzer sounds if the driver’s door is opened while the engine switch is in OFF or ACC to remind you to remove
the key.
1 Press the parking brake switch
to check that the parking brake
is set.
2 Check that the shift lever is in P
(Multidrive) or N (manual trans-
mission).
3 Firmly depress the brake pedal
(Multidrive) or clutch pedal
(manual transmission).
and a message will be displayed
on the multi-information display. If it is
not displayed, the engine cannot be
started.
4 Press the engine switch shortly
and firmly.
When operating the engine switch, one
short, firm press is enough. It is not necessary to press and hold the switch.
The engine will crank until it starts or for
up to 30 seconds, whichever is less.
Continue depressing the brake pedal (Multidrive) or clutch pedal (manual
transmission) until the engine is com- pletely started.
The engine can be started from any
WARNING
■Caution when driving
Do not turn the engine switch to OFF while driving. If, in an emergency, you must turn the engine off while the
vehicle is moving, turn the engine switch only to ACC to stop the engine. An accident may result if the engine is
stopped while driving. ( →P.360)
NOTICE
■To prevent battery discharge
Do not leave the engine switch in ACC or ON for long periods of time without the engine running.
Engine (ignition) switch
(vehicles with a smart
entry & start system)
Performing the following oper-
ations when carrying the elec-
tronic key on your person
starts the engine or changes
engine switch modes.
Starting the engine

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-2. Driving procedures
engine switch mode.
■Engine switch illumination
In the following situations, the engine
switch is illuminated.
●When the driver’s or passenger’s door
is opened.
●When the engine switch is in ACC or
ON.
●When the engine switch mode is
changed from ACC or ON to off.
Also, in the following situation, the
engine switch flashes.
●When depressing the brake pedal
while carrying the electronic key.
■If the engine does not start
●The engine immobilizer system may
not have been deactivated. (→P.76)
Contact any authorized Toyota retailer
or Toyota authorized repairer, or any
reliable repairer.
●If a message related to start-up is
shown on the multi-information dis-
play, read the message and follow the
instructions.
■If the battery is discharged
The engine cannot be started using the
smart entry & start system. Refer to
P.401 to restart the engine.
■Electronic key battery depletion
→P. 1 1 2
■Conditions affecting operation
→P. 1 2 4
■Notes for the entry function
→P. 1 2 5
■Steering lock function
●After turning the engine switch off and
opening and closing the doors, the
steering wheel will be locked due to
the steering lock function. Operating
the engine switch again automatically
cancels the steering lock.
●When the steering lock cannot be
released, “Push Engine Switch while
Turning Steering Wheel in Either
Direction” will be displayed on the
multi-information display.
Press the engine switch shortly and
firmly while turning the steering wheel
left and right.
●To prevent the steering lock motor
from overheating, operation of the
motor may be suspended if the engine
is turned on and off repeatedly in a
short period of time. In this case,
refrain from operating the engine
switch. After about 10 seconds, the
steering lock motor will resume func-
tioning.
■Electronic key battery
→P. 3 4 5
■Operation of the engine switch
●If the switch is not pressed shortly and
firmly, the engine switch mode may
not change or the engine may not
start.
●If attempting to restart the engine
immediately after turning the engine
switch off, the engine may not start in
some cases. After turning the engine
switch off, please wait a few seconds
before restarting the engine.

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7-2. Steps to take in an emergency
When trouble arises
3Firmly depress the brake pedal
(Multidrive) or clutch pedal
(manual transmission) and
check that is shown on the
multi-information display.
4 Press the engine switch shortly
and firmly.
In the event that the engine still
cannot be started, contact any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Stopping the engine
Shift the shift lever to P (Multidrive) or N (manual transmission) and press the
engine switch as you normally do when stopping the engine.
■Electronic key battery
As the above procedure is a temporary
measure, it is recommended that the electronic key battery be replaced immediately when the battery is
depleted. ( →P.345)
■Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechani- cal key when the alarm system is set, the alarm may be triggered. ( →P. 7 8 )
■Changing engine switch modes
Release the brake pedal (Multidrive) or clutch pedal (manual transmission) and press the engine switch in step 3 above.
The engine does not start and modes will be changed each time the switch is pressed. ( →P.162)
If you have a set of jumper (or
booster) cables and a second vehi-
cle with a 12-volt battery, you can
jump start your vehicle by following
the steps below.
1 Vehicles with an alarm (→P. 7 8 ) :
Confirm that the key is being
carried.
When connecting the jumper (or
booster) cables, depending on the situ- ation, the alarm may activate and doors locked. ( →P. 7 9 )
2Open the hood. (→P.317)
If the vehicle battery is
discharged
The following procedures may
be used to start the engine if
the vehicle’s battery is dis-
charged.
You can also call any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer or a qualified
repair shop.
Restarting the engine

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Alphabetical Index
C
Care ....................................... 308, 311
Aluminum wheels ....................... 308
Exterior....................................... 308
Interior ........................................ 311
Seat belts ................................... 311
Chains ........................................... 275
Child restraint system .................... 47
Points to remember...................... 47
Riding with children ...................... 46
Child safety ..................................... 46
Airbag precautions ....................... 41
Battery precautions ............ 328, 404
Child restraint system .................. 47
Heated steering wheel and seat
heater precautions ................... 289
How your child should wear the seat
belt ............................................. 34
Installing child restraints............... 47
Power window lock switch ......... 141
Power window precautions ........ 140
Rear door child-protectors ......... 119
Removed electronic key battery pre-
cautions ................................... 347
Seat belt precautions ................... 46
Child-protectors............................ 119
Cleaning ................................ 308, 311
Aluminum wheels ....................... 308
Exterior....................................... 308
Interior ........................................ 311
Radar sensor ............................. 188
Seat belts ................................... 311
Clock ........................ 86, 88, 88, 90, 92
Coat hooks .................................... 304
Condenser..................................... 324
Consumption screen .................... 109
Cooling system ............................. 324
Engine overheating .................... 405
Cruise control
Dynamic radar cruise control ..... 213Cup holders ...................................294
Current fuel consumption ......95, 100
Curtain shield airbags ....................36
Customizable features ................. 422
D
Daytime running light system ..... 173
Deck board .................................... 295
Defogger
Outside rear view mirrors ... 280, 285
Rear window ...................... 280, 285
Windshield.......................... 280, 285
Dimensions ...................................410
Display
Dynamic radar cruise control ..... 213
Head-up display ......................... 105
LTA (Lane-Tracing Assist) .......... 209
Multi-information display ........93, 99
Speed limiter .............................. 224
Toyota parking assist-sensor...... 242
Warning message ...................... 377
Display change button ............. 87, 91
Distance until next engine oil change
................................................. 87, 91
Do-it-yourself maintenance ......... 314
Door
Double locking system ................. 77
Door lock
Back door ...................................120
Side doors .................................. 116
Smart entry & start system ......... 123
Wireless remote control ............. 114
Doors
Back door ...................................120
Door glasses .............................. 139
Door lock ............................ 116, 120
Open door warning buzzer . 117, 119
Outside rear view mirrors ........... 136
Rear door child-protectors.......... 119
Side doors .................................. 116
Double locking system................... 77