
550What to do if... (Troubleshooting)
PRIUS +_OM_OM47D30E_(EE)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 450)
●The parking brake indicator is on
Is the parking brake released? (P. 240)
Depending on the situation, other types of warning buzzer may also sound. 
(P. 444, 458)
●Did anyone inside the vehicle open a door during setting the alarm? 
The sensor detects it and the alarm sounds. (P. 104)
To stop the alarm, turn the power switch to ON mode or start the hybrid sys-
tem.
●Is the electronic key left inside the vehicle?
Vehicles without multi-information display: P. 154
Vehicles with multi-information display: P. 475
●When a warning light turns on or a warning message is displayed, refer to 
P. 444, 458.
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (vehicles with
alarm)
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed 

554Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Card holder............................... 350
Care
Aluminum wheels .................. 363
Exterior.................................. 362
Interior ................................... 367
Panoramic roof...................... 366
Radar sensor ........................ 262
Seat belts .............................. 368
Cargo hooks ............................. 351
CD player
*
Chains ....................................... 328
Child restraint system ............... 59
Baby seat definition................. 60
Baby seat installation .............. 68
Child seat definition................. 60
Child seat installation .............. 70
Installing CRS with ISOFIX 
rigid anchors ......................... 74
Installing CRS with seat belt ... 68
Installing CRS with top strap ... 76
Junior seats definition ............. 60
Junior seat installation ............ 72
Child safety ................................ 58
12-volt battery precautions.... 391
Airbag precautions .................. 48
Back door precautions .......... 150
Child restraint system ............. 59
How your child should wear 
the seat belt .......................... 42
Installing child restraints.......... 67
Power window lock switch .... 208
Power window precautions ... 210Rear door child-protectors .... 147
Removed key battery 
precautions......................... 418
Seat belt precautions .............. 44
Seat heater precautions........ 341
Child-protectors....................... 147
Cleaning
Aluminum wheels.................. 363
Exterior ................................. 362
Interior................................... 367
Panoramic roof ..................... 366
Radar sensor ........................ 262
Seat belts .............................. 368
Climate remote control ........... 340
Clock ......................................... 355
Condenser ................................ 386
Console box ............................. 346
Coolant
Capacity ................................ 532
Checking ............................... 385
Preparing and checking 
before winter....................... 327
Cooling system ........................ 385
Hybrid system overheating ... 518
Consumption screen ............... 134
Cruise control
Cruise control........................ 313
Dynamic radar cruise 
control................................. 299
Cup holders.............................. 347
Curtain shield airbags ............... 46
Customizable features ............ 539
C 

555Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Daytime running light 
system .................................... 242
Defogger
Outside rear view mirrors ...... 335
Rear window ......................... 335
Windshield ............................ 335
Dimension ................................ 526
Display
Drive information ................... 128
Dynamic radar cruise 
control................................. 299
Energy monitor............... 128,134
LDA (Lane Departure 
Alert) ................................... 284
Multi-information display ....... 126
RSA (Road Sign Assist) ........ 295
Trip information ..................... 121
Warning messages ............... 458
Do-it-yourself maintenance .... 373
Door courtesy lights ................ 342
Location ................................ 342
Wattage................................. 536
Doors
Back door .............................. 148
Door glasses ......................... 208
Door lock ............................... 144
Open door warning buzzer.... 449
Open door warning light ........ 449
Outside rear view mirrors ...... 206
Rear door child-protectors .... 147
Side doors ............................. 144
Double locking system............ 103
Drive information ..................... 128Drive-Start Control .................. 213
Driver’s seat belt reminder 
light......................................... 450
Driving
Break-in tips .......................... 214
Correct posture ....................... 36
Driving in the rain .................. 213
Driving mode select switch ... 317
Hybrid vehicle driving tips ..... 324
Procedures ........................... 212
Winter drive tips .................... 327
Dynamic radar cruise control
Function ................................ 299
Warning 
message ............. 459, 461, 462
ECB (Electronically 
Controlled Brake System) .... 318
Eco drive mode ........................ 317
Electric motor
Location .................................. 81
Specification ......................... 529
Electric Power Steering (EPS)
Function ................................ 318
Warning light ......................... 445
Electronic key
If the electronic key does not 
operate properly ................. 511
Replacing the battery ............ 417
Electronically Controlled 
Brake System (ECB) ............. 318
Emergency brake signal ......... 319
Emergency flashers ................ 434
D
E
*: Refer to the “Navigation and multimedia system Owner’s Manual”. 

556Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Emergency, in case of
If a warning buzzer sounds ... 444
If a warning light turns on ...... 444
If a warning message is 
displayed ............................ 458
If the 12-volt battery is 
discharged .......................... 513
If the electronic key does not 
operate properly ................. 511
If the hybrid system will not 
start..................................... 509
If the vehicle is trapped in 
rising water ......................... 436
If you have a flat tire...... 478, 492
If you lose your keys ............. 143
If you think something is 
wrong .................................. 443
If your vehicle becomes 
stuck ................................... 523
If your vehicle has to be 
stopped in an emergency ... 435
If your vehicle needs to be 
towed .................................. 437
If your vehicle overheats ....... 518
Energy monitor ........................ 134Engine
Accessory mode ................... 227
Compartment ........................ 379
Engine switch........................ 224
Exhaust gas precautions ........ 80
Hood ..................................... 375
How to start the hybrid 
system ................................ 224
Identification number ............ 528
If the hybrid system will not 
start .................................... 509
If your vehicle has to be 
stopped in an emergency ... 435
Ignition switch 
(power switch) .................... 224
Overheating .......................... 518
Power switch......................... 224
Engine coolant
Capacity ................................ 532
Checking ............................... 385
Preparing and checking 
before winter....................... 327
Engine coolant temperature 
warning light .......................... 449 

559Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Identification
Engine ................................... 528
Vehicle .................................. 527
Ignition switch 
(Power switch) ....................... 224
Auto power off function ......... 228
Changing the power switch 
modes................................. 227
If your vehicle has to be 
stopped in an emergency ... 435
Starting the hybrid 
system ................................ 224
Ignition switch light 
(power switch light)............... 342
Illuminated entry system......... 344
Immobilizer system ................... 91
Indicators.................................. 112
Initialization
Item to initialize ..................... 546
Tire pressure warning 
system ................................ 395
Inside rear view mirror ............ 204
Instrument cluster light 
control .................................... 120
Interior lights ............................ 342
Switch ........................... 343, 344
Wattage................................. 536
Intrusion sensor....................... 107
ISOFIX rigid anchors ................. 67Jack
Positioning a floor jack .......... 377
Vehicle-equipped jack... 479, 494
Jack handle ...................... 479, 494
Jam protection function
Panoramic roof shades ......... 358
Power windows ..................... 208
Keyless entry
Smart entry & start system ... 153
Wireless remote control ........ 140
Keys .......................................... 140
Electronic key ....................... 140
Engine switch........................ 224
If the electronic key does not 
operate properly ................. 511
If you lose your keys ............. 143
Key number plate.................. 140
Keyless entry ........................ 140
Keys ...................................... 140
Mechanical key ..................... 140
Power switch......................... 224
Replacing the battery ............ 417
Warning buzzer..................... 154
Wireless remote control 
key...................................... 140
Knee airbags .............................. 46
IJ
K 

562Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Radar cruise control 
(dynamic radar cruise 
control) ................................... 299
Radiator .................................... 386
Radio
*
Rear door sunshades .............. 360
Rear fog light
Replacing light bulbs ............. 428
Switch ................................... 250
Wattage................................. 536
Rear passenger’s seat belt 
reminder light ........................ 450
Rear seat........................... 191, 196
Adjustment .................... 191, 196
Second seats ........................ 191
Third seats ............................ 196
Rear sunshade ......................... 360
Rear turn signal lights
Replacing light bulbs ............. 428
Turn signal lever ................... 239
Wattage................................. 536
Rear view mirror
Inside rear view mirror .......... 204
Outside rear view mirrors ...... 206
Rear view monitor system
*
Rear window defogger ............ 335
Rear window wiper .................. 255
Refueling .................................. 256
Capacity ................................ 528
Fuel types ............................. 528
Opening the fuel tank cap ..... 258
Regenerative braking ................ 82
Replacing
Electronic key battery............ 417
Fuses .................................... 419
Light bulbs............................. 423
Tires .............................. 478, 492
Road accident cautions ............ 89Seat belts.................................... 38
Adjusting the seat belt ............ 41
Child restraint system 
installation ............................ 68
Cleaning and maintaining 
the seat belt........................ 368
Emergency Locking 
Retractor............................... 42
How to wear your seat belt ..... 36
How your child should wear 
the seat belt.......................... 42
Pregnant women, proper 
seat belt use ......................... 44
Reminder light and buzzer .... 450
Seat belt pretensioners ........... 41
SRS warning light ................. 445
Seat heaters ............................. 341
Seats
Adjustment ............ 187, 191, 196
Adjustment precautions ........ 189
Child seats/child restraint 
system installation .......... 59, 67
Cleaning................................ 367
Front seats ............................ 187
Head restraint ....................... 199
Properly sitting in the seat ...... 36
Seat heaters ......................... 341
Second seats ........................ 191
Third seats ............................ 196
RS 

566Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Warning lights
ABS ....................................... 445
Automatic headlight leveling 
system ................................ 449
Brake Override System ......... 213
Brake system ........................ 444
Charging system ................... 444
Cruise control ........................ 449
Drive-Start Control ................ 213
Driver’s seat belt reminder .... 450
Electronic engine control 
system ................................ 445
Electric power steering.......... 445
Front passenger’s seat belt 
reminder ............................. 450
Go to service ......................... 451
High coolant temperature...... 449
Hybrid battery indicator ......... 448
Hybrid system ....................... 445
Hybrid system overheat ........ 449
LED headlight ....................... 448
Low engine oil pressure ........ 445
Low fuel level ........................ 449
Low hybrid battery 
(traction battery) ................. 449
Malfunction indicator lamp .... 445
Master warning light .............. 450
Open door ............................. 449
Parking lock system ...... 447, 448
P position request 
indicator .............................. 448
PCS....................................... 446
Rear passenger’s seat belt 
reminder ............................. 450
Seat belt reminder light ......... 450
Slip indicator ......................... 446
SRS....................................... 445
Tire pressure ......................... 450Warning messages .................. 458
Washer
Checking ............................... 387
Preparing and checking 
before winter....................... 327
Switch ........................... 251, 255
Washing and waxing ............... 362
What to do if...
(Troubleshooting) ................. 548
Wheels ...................................... 411
Replacing wheels.................. 478
Size ....................................... 535
Window glasses....................... 208
Window lock switch ................ 208
Windows
Power windows ..................... 208
Rear window defogger .......... 335
Washer ......................... 251, 255
Windshield wipers ................... 251
Winter driving tips ................... 327
Wireless communication
*
Wireless remote control 
key .......................................... 140
Locking/Unlocking................. 140
Replacing the battery ............ 417
WMA disc
*