
3637-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_HV_EE_OM52F30E
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
■ Use a CR2016 (vehicles without a smart entry & start system) or CR2032
(vehicles with a smart entry & start system) lithium battery
● Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
● The smart entry & start system (if equipped) and wireless remote control will
not function properly.
● The operational range will be reduced.
4
WARNING
■ Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
■ Certification for the lithium battery
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS

3647-3. Do-it-yourself maintenance
YARIS_HV_EE_OM52F30E
NOTICE
■ For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.

4418-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_EE_OM52F30E
If the electronic key does not operate properly
(vehicles with a smart entr y & start system)
Use the mechanical key ( →P. 112)
in order to perform the following
operations:
Unlocks all the doors
Locks all the doors
If communication between the electronic key and vehicle is
interrupted ( →P. 137) or the electronic key cannot be used
because the battery is depleted, the smart entry & start system
and wireless remote control cannot be used. In such cases, the
doors can be opened and the hybrid system can be started by
following the procedure below.
Locking and unlocking the doors
1
2

4468-2. Steps to take in an emergency
YARIS_HV_EE_OM52F30E
■ Precautions when the 12-volt battery is discharged
● In some cases, it may not be possible to unlock the doors using entry func-
tion of the smart entry & start system immediately after the 12-volt battery
has been disconnected and reconnected. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● Vehicles with a smart entry & start system: The power switch mode is mem-
orized by the vehicle. When the 12-volt battery is reconnected, the system
will return to the mode it was in before the 12-volt battery was discharged.
Before disconnecting the 12-volt battery, turn the power switch off. If the
power switch was in ACCESSORY or ON mode before the 12-volt battery
was discharged, the audio system and/or air conditioning system may oper-
ate when the 12-volt battery is reconnected.
WARNING
■ Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with anything other than the intended ter-
minal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.
■ After recharging the 12-volt battery
Have the 12-volt battery inspected at any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional as soon as
possible. If the 12-volt battery is deteriorating, continued use may cause the
12-volt battery to emit a malodorous gas, which may be detrimental to the
health of passengers.

4689-2. Customization
YARIS_HV_EE_OM52F30E
■Smart entry & start system ( →P. 122, 134)
■Wireless remote control (→P. 111, 12 3 )
FunctionDefault
setting
Customized
setting
Smart entry & start system ON OFF O O
Operation signal
(Emergency flashers) ON OFF — O
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
30 seconds
60 seconds
—O
120 seconds
Open door warning function
(when locking the vehicle) ON OFF — O
Number of permissible times of
continuous smart lock Twice Unlimited — O
12
FunctionDefault
setting
Customized
setting
Wireless remote control ON OFF — O
Operation signal
(Emergency flashers) ON OFF — O
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
30 seconds
60 seconds
—O
120 seconds
Open door warning buzzer
(When locking the vehicle) ON OFF — O
12

480Alphabetical index
YARIS_HV_EE_OM52F30E
Child-protectors ....................... 126
Cigarette lighter ....................... 305
Cleaning............................ 310, 314
Aluminum wheels .................. 311
Exterior.................................. 310
Interior ................................... 314
Seat belts .............................. 315
Clock ......................................... 102
Condenser ................................ 332
Consumption screen ............... 104
Coolant ..................................... 331
Capacity ................................ 461
Checking ............................... 331
Preparing and checking
before winter....................... 246
Cooling system ........................ 331
Hybrid system overheating ... 448
CRS
(Child Restraint System)......... 55
Cruise control .......................... 233
Warning light ......................... 399
Cup holders .............................. 299
Curtain shield airbags ............... 41
Customizable features ............ 467
Daytime running light
system .................................... 198
Replacing the light bulbs....... 382
Defogger
Outside rear view
mirrors ................................ 288
Rear window ......................... 288
Windshield ............................ 288
Dimensions .............................. 456
Display
Drive information................... 100
Energy monitor ..................... 104
Multi-information display ....... 100
Trip information ..................... 106
Do-it-yourself maintenance .... 320
Door lock
Back door.............................. 128
Side doors............................. 122
Smart entry & start system ... 134
Wireless remote control ........ 123
Doors
Back door.............................. 128
Door glasses ......................... 162
Door lock............................... 122
Open door warning buzzer ... 135
Open door warning light........ 399
Outside rear view mirrors...... 159
Rear door child-protector ...... 126
Side doors............................. 122
Side windows ........................ 162
D

485Alphabetical index
YARIS_HV_EE_OM52F30E
Jack
Positioning a floor jack .......... 325
Vehicle-equipped jack ........... 408
Jack handle ...................... 408, 423
Jam protection function
Power window ....................... 163
Keyless entry
Smart entry & start system.... 134
Wireless remote control ........ 111
Keys .......................................... 110
Battery-saving function ......... 136
Electronic key........................ 110
Engine switch ................ 178, 182
If the electronic key does
not operate properly ........... 441
If you lose your keys ............. 112
Ignition switch ............... 178, 182
Key number plate .................. 110
Keyless entry ........................ 111
Mechanical key ..................... 112
Power switch ................. 178, 182
Replacing the battery ............ 361
Warning buzzer ..................... 135
Wireless remote control
key ...................................... 111
Lane Departure Alert (LDA) .... 223
LDA (Lane Departure Alert) .... 223
Lever
Auxiliary catch lever .............. 323
Hood lock release lever ........ 323
Shift lever .............................. 190
Turn signal lever ................... 193
Wiper lever.................... 202, 206
License plate lights ................. 195
Light switch ........................... 195
Replacing light bulbs............. 379
Wattage ................................ 465
Light bulbs
Replacing .............................. 370
Wattage ................................ 465
Lights
Automatic High Beam ........... 228
Fog light switch ..................... 200
Follow me home system ....... 196
Headlight switch.................... 195
Ignition switch light................ 295
Illuminated entry system ....... 296
Interior light ........................... 295
Interior lights list .................... 295
Luggage compartment
light..................................... 130
Personal lights ...................... 296
Power switch light ................. 295
Replacing light bulbs............. 370
Turn signal lever ................... 193
Vanity lights .......................... 304
Wattage ................................ 465
Lock steering column ..... 180, 185
Low traction battery warning
light......................................... 399
Luggage cover ......................... 301
J
K
L

487Alphabetical index
YARIS_HV_EE_OM52F30E
PCS (Pre-Crash Safety
system) ................................... 215
Function ................................ 215
PCS switch............................ 216
Warning light ......................... 398
Personal lights ......................... 296
Switch ................................... 296
Wattage................................. 465
Portable ashtray....................... 305
Power control unit coolant
Capacity ................................ 461
Checking ............................... 331
Preparing and checking
before winter....................... 246
Radiator ................................ 332
Power outlet ............................. 306
Power steering ......................... 237
Warning light ......................... 397
Power switch .................... 178, 182
Auto power off function ......... 184
Changing the power switch
modes................................. 183
If your vehicle has to be
stopped in an emergency ... 387
Starting the hybrid
system ........................ 178, 182
Power windows ........................ 162
Jam protection function ......... 163
Operation .............................. 162
Window lock switch ............... 162
Pre-Crash Safety system
(PCS)....................................... 215
Function ................................ 215
PCS switch............................ 216
Warning light ......................... 398
Radiator .................................... 332
Radio......................................... 256
Radio data system ................... 258
RDS ........................................... 258
Rear fog light ........................... 200
Replacing light bulbs............. 381
Switch ................................... 200
Wattage ................................ 465
Rear passenger’s seat belt
reminder light ........................ 400
Rear seat .................................. 150
Folding down the rear
seatbacks ........................... 150
Rear turn signal lights............. 193
Replacing light bulbs............. 378
Turn signal lever ................... 193
Wattage ................................ 465
Rear view mirror
Inside rear view mirror .......... 157
Outside rear view mirrors...... 159
Rear view monitor*
Rear window defogger ............ 288
Rear window wiper .................. 206
Refueling .................................. 208
Capacity ................................ 458
Fuel types ..................... 208, 458
Opening the fuel tank cap ..... 210
Regenerative braking ................ 77
Replacing
Electronic key battery ........... 361
Fuses .................................... 365
Light bulbs ............................ 370
Tires ...................................... 407
Wireless remote control
battery ................................ 361
Road accident cautions ............ 81
Roof shade ............................... 307
R
*: Refer to “Navigation and multimedia system Owner’s manual”.