
4797-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_HV_OM_Europe_OM52J66E
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 retailer or Toyota
authorized repairer, or any reliable repairer, 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

4807-3. Do-it-yourself maintenance
YARIS_HV_OM_Europe_OM52J66E
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
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.

5738-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
If the electronic key does not operate properly
(vehicles with a smart entry & start system)
Use the mechanical key ( P. 142)
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. 168) 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

5798-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
■ Precautions when the 12-volt battery is discharged (vehicles with a
smart entry & start system)
● 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.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery 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 retailer or
Toyota authorized repairer, or any reliable repairer as soon as possible. If
the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, whic h may be detrimental to the health of
passengers.

6069-2. Customization
YARIS_HV_OM_Europe_OM52J66E
■Smart entry & start system* ( P. 152, 159, 164)
*: If equipped
■Wireless remote control ( P. 141, 153)
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
123
FunctionDefault
setting
Customized
setting
Wireless remote control ON OFF — — O
Operation signal
(Emergency flashers) ON OFF — O 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
123

619Alphabetical index
YARIS_HV_OM_Europe_OM52J66E
CRS
(Child Restraint System)......... 60
Cruise control .......................... 299
Warning light ......................... 520
Warning messages ............... 301
Cup holders .............................. 402
Curtain shield airbags ............... 43
Customizable features ............ 603
Daytime running light
system .................................... 241
Replacing the light
bulbs .......................... 492, 502
Wattage................................. 600
Defogger
Outside rear view
mirrors ................................ 390
Rear window ......................... 390
Windshield ............................ 390
Dimensions .............................. 590
Display
Drive information ........... 122, 127
Energy monitor...................... 133
Multi-information
display ........................ 121, 125
RSA (Road Sign Assist) ........ 293
Trip information ..................... 136
Warning messages ............... 531
Do-it-yourself maintenance .... 430
Door lock
Back door.............................. 159
Side doors............................. 152
Smart entry & start system ... 164
Wireless remote control ........ 153
Doors
Back door.............................. 159
Door glasses ......................... 199
Door lock............................... 152
Open door warning buzzer ... 165
Open door warning light........ 521
Outside rear view mirrors...... 196
Rear door child-protector ...... 157
Side doors............................. 152
Side windows ........................ 199
Double locking system ........... 104
Driver’s seat belt reminder
light......................................... 521
Driving ...................................... 204
Break-in tips .......................... 205
Correct driving posture ........... 34
Hybrid vehicle driving tips ..... 310
Procedures ........................... 204
Winter drive tips .................... 313
D
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual”.

624Alphabetical index
YARIS_HV_OM_Europe_OM52J66E
Jack
Positioning a floor jack .......... 435
Vehicle-equipped jack ........... 557
Jack handle ...................... 539, 557
Jam protection function
Power window ....................... 200
Keyless entry
Smart entry & start system.... 164
Wireless remote control ........ 141
Keys .......................................... 140
Battery-saving function ......... 167
Electronic key........................ 140
Engine switch ................ 216, 220
If the electronic key does
not operate properly ........... 573
If you lose your keys ............. 143
Ignition switch ............... 216, 220
Key number plate .................. 140
Keyless entry ........................ 141
Mechanical key ..................... 142
Power switch ................. 216, 220
Replacing the battery ............ 477
Warning buzzer ..................... 165
Wireless remote control
key ...................................... 141
Knee airbags .............................. 43
Lane Departure Alert (LDA) .... 279
LDA (Lane Departure Alert) .... 279
Lever
Auxiliary catch lever .............. 433
Hood lock release lever ........ 433
Shift lever .............................. 232
Turn signal lever ................... 236
Wiper lever.................... 246, 250
License plate lights ................. 238
Light switch ........................... 238
Replacing light bulbs............. 498
Wattage ................................ 600
Light bulbs
Replacing .............................. 486
Wattage ................................ 600
Lights
Automatic High Beam ........... 287
Fog light switch ..................... 244
Follow me home system ....... 239
Headlight switch.................... 238
Ignition switch light................ 398
Illuminated entry system ....... 399
Interior light ........................... 398
Interior lights list .................... 398
Luggage compartment
light..................................... 161
Personal lights ...................... 399
Power switch light ................. 398
Replacing light bulbs............. 486
Turn signal lever ................... 236
Vanity lights .......................... 407
Wattage ................................ 600
Lock steering column ..... 218, 226
Low traction battery warning
light......................................... 521
Low traction battery warning
message ................................. 531
Luggage cover ......................... 404
J
K
L

627Alphabetical index
YARIS_HV_OM_Europe_OM52J66E
Replacing
Electronic key battery............ 477
Fuses .................................... 481
Light bulbs............................. 486
Tires .............................. 537, 556
Wireless remote control
battery................................. 477
Road accident cautions ............ 93
Roof shade ............................... 411
RSA (Road Sign Assist) .......... 293
Seat belt reminder light ........... 521
Seat belts .................................... 36
Child restraint system
installation............................. 65
Cleaning and maintaining
the seat belt ........................ 423
Emergency Locking Retractor
(ELR) .................................... 39
How to wear your seat belt ..... 36
How your child should wear
the seat belt .......................... 39
Pregnant women, proper
seat belt use ......................... 40
Reminder light and buzzer .... 521
Seat belt pretensioners ........... 39
SRS warning light ................. 518
Seat heaters ............................. 396
Seats ................................. 182, 184
Adjustment ............................ 182
Adjustment precautions ........ 183
Child seats/child restraint
system installation ................ 65
Cleaning................................ 419
Folding down the rear
seatbacks ........................... 184
Head restraints ..................... 188
Properly sitting in the seat ...... 34
Seat heaters ......................... 396
Sensor
Automatic headlight
system ................................ 241
Automatic High Beam ........... 257
Camera sensor ..................... 257
Inside rear view mirror .......... 194
Laser sensor ......................... 257
LDA
(Lane Departure Alert)........ 279
PCS (Pre-Crash Safety
System) .............................. 257
Rain-sensing windshield
wipers ................................. 248
RSA (Road sign Assist) ........ 293
Service reminder
indicators ............................... 108
Shift lever ................................. 232
Hybrid transmission .............. 232
If the shift lever cannot
be shifted from P ................ 234
Shift lock system ..................... 234
Side airbags ............................... 43
Side doors ................................ 152
S
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual”.