2018 TOYOTA PRIUS V key battery

582What to do if... (Troubleshooting)
PRIUS v_OM_OM47B78U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. (P. 111 )
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact your Toyota dealer immediately. ( P. 1 1 3 )
●Is the electronic key battery weak or depleted? (P. 449)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 169)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (P. 126)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 11 7 )
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

583What to do if... (Troubleshooting)
PRIUS v_OM_OM47B78U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(P. 168)
●Is the shift position in P? ( P. 176)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 124)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(P. 521)
●Is the 12-volt battery discharged? ( P. 523)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 146)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. (P. 170)
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

587Alphabetical index
PRIUS v_OM_OM47B78U_(U)
AntennaSmart key system ................. 124
Radio .................................... 288
Anti-lock brake system (ABS) ...................................... 252
Function ................................ 252
Warning light ......................... 479
Approach warning ................... 235
Armrest ..................................... 382
Assist grips .............................. 383
Audio input............................... 273
Audio system (Entune Audio) ...................... 269Antenna ................................ 288
Audio input ............................ 273
AUX port ............................... 305
Basic operations ................... 274
Bluetooth
® audio................... 317
CD player .............................. 289
iPod....................................... 295
MP3/WMA disc ..................... 289
Optimal use........................... 286
Portable music player ........... 273
Radio .................................... 287
Steering wheel audio switches.............................. 272
USB memory ........................ 300
Audio system (Entune Premium Audio with Navigation)
*
Automatic air conditioning systemAir conditioning filter ............. 445
Automatic air conditioning system ................................ 360 Automatic door locking
and unlocking systems ........ 117
Automatic headlight leveling system ..................... 184
Automatic High Beam ............. 185
Automatic light control
system.................................... 183
AUX port................................... 273
Auxiliary boxes ................ 375, 377
Back door ................................. 119
Back-up lights Replacing light bulbs ............ 464
Wattage ................................ 544
Battery (12-volt battery) Battery checking ................... 427
If the 12-volt battery is discharged.......................... 523
Preparing and checking
before winter ...................... 262
Warning light......................... 478
Battery (traction battery) .......... 78
Bluetooth
®............................... 348
Audio system ........................ 317
Hands-free system (for cellular phone) ............. 319
Registering/removing a Bluetooth
® device ........... 311
Selecting a Bluetooth®
device ................................. 313
Wireless communication....... 306
B
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

588Alphabetical index
PRIUS v_OM_OM47B78U_(U)
Bluetooth® audio ..................... 317
Bluetooth® phone .................... 319
Deleting the call history......... 339
Making a call ......................... 322
Managing the contacts.......... 335
Message function.................. 329
Phone settings ...................... 334
Receiving a call..................... 325
Speaking on the phone ......... 326
Bottle holders .......................... 373
Brake Fluid ...................................... 542
Parking brake........................ 181
Regenerative braking.............. 76
Warning light ......................... 478
Brake assist ............................. 252
Brake Override System ........... 151
Break-in tips ............................. 151
Brightness control Instrument panel light control ........................... 92
Card holder .............................. 375
Care Aluminum wheels.................. 395
Exterior ................................. 394
Interior................................... 398
Panoramic roof ..................... 397
Radar sensor ........................ 201
Seat belts .............................. 399
Cargo capacity ......................... 165
Cargo hooks............................. 376
CD player .................................. 289
Chains....................................... 263 Child restraint system............... 59
Booster seats definition .......... 60
Booster seat installation ......... 69
Convertible seat definition ...... 60
Convertible seat installation.... 67
Front passenger occupant classification system ............ 53
Infant seat definition ............... 60
Infant seat installation ............. 66
Installing CRS with LATCH system .................................. 64
Installing CRS with seat belt ....................................... 66
Installing CRS with top tether strap ........................... 70
LATCH system ....................... 63
Child safety ................................ 58
12-volt battery precautions......................... 429
Airbag precautions.................. 44
Back door precautions .......... 121
Child restraint system ............. 59
How your child should wear the seat belt ................. 36
Installing child restraints ......... 63
Power window lock switch .... 146
Power window precautions......................... 148
Rear door child-protectors .... 117
Removed key battery precautions......................... 450
Seat belt extender precautions........................... 40
Seat belt precautions .............. 38
Seat heater precautions ....... 367
C

590Alphabetical index
PRIUS v_OM_OM47B78U_(U)
DoorsAutomatic door locking and unlocking system ......... 117
Back door.............................. 119
Door glasses ......................... 146
Door lock............................... 114
Open door warning buzzer ... 480
Open door warning light........ 480
Outside rear view mirrors...... 144
Rear door child-protectors .... 117
Side doors............................. 114
Drive information ....................... 96
Drive-Start Control ................. 151
Driver’s seat belt reminder light......................................... 480
Driving Break-in tips .......................... 151
Correct posture ....................... 30
Driving in the rain .................. 151
Driving mode select
switch ................................. 251
Hybrid vehicle driving tips ..... 259
Procedures ........................... 150
Winter drive tips .................... 262
Dynamic radar cruise control Function ................................ 227
Warning message ......... 488, 490 ECB (Electronically
Controlled Brake System) .... 252
Eco drive mode........................ 251
EDR (Event data recorder)........ 11
Electric motor Location .................................. 74
Specification ......................... 538
Electric Power Steering (EPS)
Function ................................ 252
Warning light......................... 479
Electronic key If the electronic key does not operate properly ........... 521
Replacing the battery............ 449
Electronically Controlled Brake System (ECB) ............. 252
Emergency flashers ................ 470
Emergency, in case of If a warning buzzer sounds................................ 478
If a warning light turns on ..... 478
If a warning message is displayed ............................ 487
If the 12-volt battery is discharged.......................... 523
If the electronic key does not operate properly ........... 521
If the hybrid system will not start .............................. 519E

594Alphabetical index
PRIUS v_OM_OM47B78U_(U)
JackPositioning a floor jack .......... 411
Vehicle-equipped jack........... 507
Jack handle .............................. 507
Jam protection function Panoramic roof shades ......... 384
Power windows ..................... 147
Keyless entry Smart key system ................. 124
Wireless remote control ........ 110
Keys .......................................... 110 Electronic key ....................... 110
Engine switch........................ 168
If the electronic key does not operate properly ........... 521
If you lose your keys ............. 113
Key number plate.................. 110
Keyless entry ........................ 110
Keys ...................................... 110
Mechanical key ..................... 110
Power switch......................... 168
Replacing the battery ............ 449
Warning buzzer..................... 125
Wireless remote control key...................................... 110
Knee airbags .............................. 41 Language
(multi-information display)... 559
LATCH system ........................... 63
LDA (Lane Departure Alert) .... 217
Lever Auxiliary catch lever.............. 409
Hood lock release lever ........ 409
Shift lever.............................. 175
Turn signal lever ................... 180
Wiper lever ........................... 192
License plate lights Light switch ........................... 182
Replacing light bulbs ............ 465
Wattage ................................ 544
Light Automatic High Beam system ................................ 185
Door courtesy lights .............. 368
Fog light switch ..................... 191
Headlight switch ................... 182
Illuminated entry system ....... 370
Interior lights ................. 369, 370
Interior light list ..................... 368
Luggage compartment light..................................... 120
Personal lights ...................... 369
Power switch light ................. 368
Replacing light bulbs ............ 454
Shift lever light ...................... 368
Turn signal lever ................... 180
Vanity lights .......................... 380
Wattage ................................ 544
Light bulbs
Replacing.............................. 454
Wattage ................................ 544
Luggage cover ......................... 378
J
K
L

597Alphabetical index
PRIUS v_OM_OM47B78U_(U)
Radar cruise control (dynamic radar cruise
control) ................................... 227
Radiator .................................... 421
Radio......................................... 287
Rear seat .................................. 135
Rear side marker lights Light switch ........................... 182
Rear turn signal lights Replacing light bulbs............. 464
Turn signal lever ................... 180
Wattage ................................ 544
Rear view mirror Inside rear view mirror .......... 142
Outside rear view mirrors...... 144
Rear view monitor system ...... 241
Rear window defogger ............ 362
Rear window wiper .................. 194
Refueling .................................. 195 Capacity ................................ 538
Fuel types ............................. 538
Opening the fuel tank cap ..... 196
Regenerative braking ................ 76
Replacing Electronic key battery ........... 449
Fuses .................................... 451
Light bulbs ............................ 454
Tires ...................................... 506
Road accident cautions ............ 81 Seat belts ................................... 32
Adjusting the seat belt ............ 35
Automatic Locking
Retractor .............................. 36
Child restraint system installation ............................ 66
Cleaning and maintaining the seat belt........................ 399
Comfort guide ......................... 35
Emergency Locking Retractor .............................. 36
How to wear your seat belt ..... 32
How your child should wear the seat belt.......................... 36
Pregnant women, proper seat belt use ......................... 38
Reminder light and buzzer.... 480
Seat belt extender .................. 37
Seat belt instructions for Canadian owners ............... 570
Seat belt pretensioners........... 36
SRS warning light ................. 479
Seat heaters ............................. 367
Seating capacity ...................... 165
RS

602Alphabetical index
PRIUS v_OM_OM47B78U_(U)
Warning lightsABS....................................... 479
Automatic headlight leveling system ................... 480
Brake Override System......... 151
Brake system ........................ 478
Charging system ................... 478
Drive-Start Control ................ 151
Driver’s seat belt
reminder ............................. 480
Electronic engine control
system ................................ 478
Electric power steering ......... 479
Front passenger’s seat belt reminder ...................... 480
High coolant temperature ..... 480
Low fuel level ........................ 480
Malfunction indicator lamp .... 478
Master warning light.............. 480
Open door ............................. 480
PCS ...................................... 479
Seat belt reminder light ......... 480
Slip indicator ......................... 479
SRS ...................................... 479
Tire pressure......................... 481
Warning messages .................. 487 Washer
Checking............................... 425
Preparing and checking before winter ...................... 262
Switch ........................... 192, 194
Washing and waxing ............... 394
Weights Cargo capacity...................... 165
Load limits ............................ 536
What to do if... (Troubleshooting) ................. 582
Wheels ...................................... 443 Replacing wheels ................. 506
Size....................................... 543
Window glasses ...................... 146
Window lock switch ................ 146
Windows Power windows..................... 146
Rear window defogger.......... 362
Washer ......................... 192, 194
Windshield wipers ................... 192
Winter driving tips ................... 262
Wireless communication ........ 306
Wireless remote control key .......................................... 110Locking/Unlocking ................ 110
Panic mode........................... 111
Replacing the battery............ 449
WMA disc ................................. 289