2021 TOYOTA PRIUS PLUG-IN HYBRID brake sensor

796What to do if... (Troubleshooting)
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
●The seat belt reminder light is flashing
Are the driver and all the passengers wearing the seat belts? (P. 720)
●The parking brake indicator is on
Is the parking brake released? (P. 386)
Depending on the situation, other types of warning buzzer may also sound.
(P. 714, 723)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (P. 87)
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?
Check the message on the multi-information display. (P. 723)
●When a warning light turns on or a warning message is displayed, refer to
P. 714, 723.
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

798Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Alphabetical index
A/C............................................. 572
Air conditioning filter.............. 681
Automatic air conditioning
system ................................ 572
Blower customization ............ 576
Eco score (A/C score) ........... 254
Front seat concentrated
airflow mode (S-FLOW)...... 575
Humidity sensor .................... 584
Remote Air Conditioning
System................................ 585
ABS (Anti-lock Brake
System) .................................. 559
Function ................................ 559
Warning light ......................... 715
AHS (Adaptive High-beam
System) .................................. 391
Air conditioning filter .............. 681
Air conditioning system .......... 572
Air conditioning filter.............. 681
Automatic air conditioning
system ................................ 572
Blower customization ............ 576
Eco score (A/C score) ........... 254
Front seat concentrated
airflow mode (S-FLOW)...... 575
Humidity sensor .................... 584
Remote Air Conditioning
System................................ 585
Air intake vent .......................... 109
Cleaning ................................ 623Airbag manual on-off
system ...................................... 51
Airbags ....................................... 39
Airbag manual on-off
system .................................. 51
Airbag operating conditions .... 45
Airbag precautions for your
child ...................................... 41
Airbag warning light .............. 715
Correct driving posture ........... 32
Curtain shield airbag
operating conditions ............. 45
Curtain shield airbag
precautions........................... 43
General airbag precautions .... 41
Locations of airbags................ 39
Modification and disposal of
airbags.................................. 44
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 42
Side and curtain shield
airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 43
SRS airbags............................ 39
Alarm .......................................... 87
Alarm ...................................... 87
Intrusion sensor ...................... 90
A

799Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Antenna
Smart entry & start system.... 293
Anti-lock brake system
(ABS) ...................................... 559
Function ................................ 559
Warning light ......................... 715
Approach warning ................... 461
Armrest ..................................... 613
Assist grips .............................. 614
Audio input
*
Audio system*
Automatic air conditioning
system .................................... 572
Air conditioning filter.............. 681
Automatic air conditioning
system ................................ 572
Blower customization ............ 576
Eco score (A/C score) ........... 254
Front seat concentrated
airflow mode (S-FLOW)...... 575
Humidity sensor .................... 584
Remote Air Conditioning
System................................ 585
Automatic headlight leveling
system .................................... 389
Automatic light control
system .................................... 388
AUX port
*
Auxiliary boxes ........................ 598
Back door ................................. 288
Back-up light ............................ 695
Replacing light bulbs ............. 696
Wattage................................. 779Battery (12-volt battery) .......... 644
Battery checking ................... 644
Exchanging ........................... 758
If the 12-volt battery is
discharged .......................... 755
Preparing and checking
before winter....................... 566
Replacing .............................. 758
Warning light ......................... 714
Battery (traction battery)......... 108
Air intake vent ....................... 109
Charging ............................... 121
Location ................................ 108
Specification ......................... 773
Status indicator ..................... 123
Blind Spot Monitor (BSM) ....... 473
Blind Spot Monitor function ... 489
Rear Crossing Traffic Alert
function ............................... 493
Bluetooth
®*
Bottle holders .......................... 597
Brake
Fluid ...................................... 778
Parking brake........................ 386
Regenerative braking............ 103
Warning light ......................... 714
Brake assist ............................. 559
Brake Override System ........... 360
Break-in tips ............................. 361
Brightness control
Instrument cluster light
control................................. 206
BSM (Blind Spot Monitor) ....... 473
Blind Spot Monitor function ... 489
Rear Crossing Traffic Alert
function ............................... 493
B
*: Refer to “Navigation system Owner’s manual”.

801Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Child-protectors ....................... 286
Cleaning............................ 616, 622
Aluminum wheels .................. 617
Exterior.................................. 616
Front camera......................... 408
Hybrid battery (traction
battery) air intake vent ........ 623
Interior ................................... 622
Radar sensor ........................ 407
Seat belts .............................. 625
Water-repellent coating ......... 617
Clock ......................................... 204
Adjustment ............................ 210
Coat hooks ............................... 613
Combination meter .................. 204
Clock adjustment .................. 210
Main display .......................... 222
Multi-information display ....... 230
Warning lights and
indicators ............................ 214
Condenser ................................ 643
Console box ............................. 595
Consumption screen ............... 275
Coolant ..................................... 641
Capacity ................................ 776
Checking ............................... 641
Preparing and checking
before winter....................... 566
Cooling system ........................ 641
Engine overheating ............... 761
Hybrid system overheating ... 763
Cruise control
Dynamic radar cruise control
with full-speed range .......... 451
Cup holders .............................. 596
Curtain shield airbags ............... 39
Customizable features ............ 782Daytime running light
system .................................... 388
Deck board ............................... 600
Defogger
Outside rear view mirrors...... 577
Rear window ......................... 577
Windshield ............................ 577
Dimension ................................ 770
Display
Drive information................... 232
Dynamic radar cruise control
with full-speed range .......... 451
Energy monitor ............. 233, 272
Head-up display .................... 264
LTA (Lane Tracing Assist) .... 438
Main display .......................... 222
Multi-information display ....... 230
Parking Support Brake
function ............................... 516
Pre-collision warning............. 419
RCTA detection screen......... 473
RSA (Road Sign Assist)........ 446
S-IPA (Simple Intelligent
Parking Assist System) ...... 527
Toyota parking assist
sensor................................. 500
Warning messages ............... 723
Do-it-yourself maintenance .... 631
Door courtesy lights................ 591
Location ................................ 591
Wattage ................................ 779D

805Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Horn .......................................... 346
HV mode ..................................... 95
Hybrid battery (traction
battery) ................................... 108
Air intake vent ....................... 109
Charging ............................... 121
Location ................................ 108
Specification.......................... 773
Status indicator ..................... 123
Hybrid battery (traction
battery) air intake vent .......... 109
Cleaning ................................ 623
Hybrid system ............................ 94
Brake Override System ......... 360
Consumption screen ..... 244, 275
Drive-Start Control ................ 360
Emergency shut off system... 109
Energy monitor.............. 233, 272
High voltage components ..... 108
Hybrid System Indicator ........ 236
If the hybrid system will not
start..................................... 749
Overheating .......................... 761
Plug-in hybrid system
precautions ......................... 108
Plug-in hybrid vehicle driving
tips ...................................... 115
Power switch ......................... 373
Regenerative braking ............ 103
Starting the hybrid system .... 373
Vehicle proximity notification
system ................................ 103
Hybrid System Indicator ......... 236
Hybrid transmission ................ 379Identification ............................ 771
Engine................................... 772
Vehicle .................................. 771
Ignition switch (power
switch) .................................... 373
Auto power off function ......... 375
Changing the power switch
modes................................. 375
If your vehicle has to be
stopped in an emergency ... 705
Starting the hybrid system .... 373
Illuminated entry system ........ 593
Immobilizer system ................... 74
Indicators ................................. 214
Initialization .............................. 792
Items to initialize ................... 792
Parking Support Brake
function ............................... 520
Power windows ..................... 353
S-IPA (Simple Intelligent
Parking Assist System) ...... 548
Tire pressure warning
system ................................ 652
Inside rear view mirror ............ 348
Instrument cluster light
control .................................... 206
Interior lights............................ 591
Switch ........................... 592, 593
Wattage ................................ 779
Intrusion sensor ........................ 90
ISOFIX lower anchorages ......... 70I
*: Refer to “Navigation system Owner’s manual”.

807Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Main display ............................. 222
Maintenance
Do-it-yourself maintenance ... 631
Maintenance data ................. 770
Maintenance requirements ... 628
Malfunction indicator lamp ..... 715
Master warning light ................ 723
Meter ......................................... 204
Clock adjustment .................. 210
Combination meter................ 204
Head-up display .................... 264
Indicators .............................. 216
Instrument cluster light
control................................. 206
Main display .......................... 222
Multi-information display ....... 230
Warning lights ....................... 215
Warning messages ............... 723
Microphone
*
Mirrors
Inside rear view mirror .......... 348
Outside rear view mirror
defoggers............................ 577
Outside rear view mirrors ...... 350
Vanity mirrors ........................ 605Multi-information display ........ 230
Air conditioning system
settings screen ................... 252
Audio system-linked
display ................................ 251
BSM (Blind Spot Monitor) ..... 473
Display contents ................... 230
Drive information................... 232
Driving assist system
information.......................... 256
Dynamic radar cruise control
with full-speed range .......... 451
Energy monitor ..................... 233
Language .............................. 260
LTA (Lane Tracing Assist) .... 438
Parking Support Brake
function ............................... 516
Pre-collision warning............. 419
RSA (Road Sign Assist)........ 446
S-IPA (Simple Intelligent
Parking Assist System) ...... 527
Settings ................................. 257
Toyota parking assist
sensor................................. 500
Warning message ................. 256
M
*: Refer to “Navigation system Owner’s manual”.

808Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Navigation system*
Odometer .................................. 224
Oil
Engine oil .............................. 773
Opener
Back door .............................. 288
Fuel filler door ....................... 403
Hood ..................................... 634
Outside rear view mirrors ....... 350
Adjustment ............................ 350
BSM (Blind Spot Monitor) ..... 473
Folding .................................. 350
Outside rear view mirror
defoggers............................ 577
Outside temperature
display .................................... 222
Overhead console.................... 598
Overheating .............................. 761
P position switch ..................... 380
Panoramic view monitor
*
Parking assist sensors
Parking Support Brake
function ............................... 510
S-IPA (Simple Intelligent
Parking Assist System)....... 523
Toyota parking
assist-sensor ...................... 499Parking brake ........................... 386
Operation .............................. 386
Parking brake engaged
warning buzzer ................... 386
Parking lock ............................. 380
Parking Support Brake
function .................................. 510
PCS (Pre-Collision System) .... 418
Enabling/disabling the
system ................................ 422
Function ................................ 418
Warning light ......................... 716
Personal lights ......................... 591
Switch ................................... 592
Wattage ................................ 779
Plug-in hybrid system ............... 94
Driving tips ............................ 115
EV City mode .......................... 95
EV driving range ................... 119
EV mode ................................. 95
EV/HV mode selection
switch ................................... 98
Features.................................. 94
How to charge....................... 165
HV mode ................................. 95
Hybrid battery (traction
battery) charge mode ........... 95
Power control unit coolant ..... 641
Capacity ................................ 776
Checking ............................... 641
Preparing and checking
before winter....................... 566
Radiator ................................ 643
N
O
P

810Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
S-FLOW (Front seat
concentrated airflow
mode)...................................... 575
S-IPA (Simple Intelligent
Parking Assist System) ........ 523
Seat back pockets ................... 599
Seat belts .................................... 34
Adjusting the seat belt............. 35
Child restraint system
installation............................. 68
Cleaning and maintaining
the seat belt ........................ 625
Emergency Locking
Retractor (ELR) .................... 36
How to wear your seat belt ..... 32
How your child should wear
the seat belt .......................... 36
Pregnant women, proper
seat belt use ......................... 37
Reminder light and buzzer .... 717
Seat belt pretensioners ........... 35
SRS warning light ................. 715
Seat heaters ............................. 589
Seats ................................. 339, 341
Adjustment ............................ 339
Adjustment precautions ........ 340
Armrest ................................. 613
Child seats/child restraint
system installation ................ 67
Cleaning ................................ 622
Front seats ............................ 339
Head restraint ....................... 343
Properly sitting in the seat....... 32
Rear seats............................. 341
Seat back pocket .................. 599
Seat heaters.......................... 589Sensor
AHS (Adaptive High-beam
System) .............................. 391
Automatic headlight
system ................................ 388
BSM (Blind Spot Monitor) ..... 488
Door handle .......................... 283
Front camera ........................ 406
Humidity sensor .................... 584
Inside rear view mirror .......... 349
Intrusion sensor ...................... 90
LTA (Lane Tracing Assist) .... 429
Parking Support Brake
function ............................... 499
Radar sensor ........................ 406
Rain-sensing windshield
wipers ................................. 399
RCTA (Rear Crossing Traffic
Alert function) ..................... 488
S-IPA (Simple Intelligent
Parking Assist System) ...... 553
Toyota parking
assist-sensor ...................... 499
Service plug ............................. 108
Service reminder indicators ... 214
Shift lever ................................. 379
Shift lever light......................... 591
Side airbags ............................... 39
Side doors ................................ 283
Side mirrors ............................. 350
Adjustment ............................ 350
BSM (Blind Spot Monitor) ..... 473
Folding .................................. 350
Outside rear view mirror
defoggers ........................... 577
S