stop start TOYOTA PRIUS 2021 (in English) Repair Manual

6577-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)
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When trouble arises
The coolant level is satisfactory if it is between the “MAX” and
“MIN” lines on the reservoir.
Reservoir
“MAX” line
“MIN” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from t he radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating b y checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the neare st Toyota dealer.
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6597-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)
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When trouble arises
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check if “Hybrid System
Overheated” is shown on the multi-information display.
If the message d oes not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the message appears again frequently, contact your To y o t a
dealer.
WARNING
■ To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the ho od until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the “Accessory”,
“Ignition ON” or mileage display ( P. 116) on the main display and the
“READY” indicator are off.
When the hybrid system is operating, the gasoline engine may au tomati-
cally start, or the cooling fans may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as t he fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir caps while the hybrid syste m and radi-
ator are hot.
High temperature steam or coolant could spray out.
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PRIUS_OM_OM47E09U_(U)
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When trouble arises
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Set the parking brake and shift the shift position to P. Stop the
hybrid system.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front wheel s
to help provide traction.
Restart the hybrid system.
Shift the shift position to D or R and release the parking brak e.
Then, while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRAC. ( P. 4 2 2 )
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728Alphabetical index
PRIUS_OM_OM47E09U_(U)
DoorsAutomatic door locking and
unlocking system ................ 188
Back door.............................. 191
Door glasses ......................... 218
Door lock............................... 185
Open door warning buzzer ... 189
Open door warning light........ 594
Outside rear view mirrors...... 216
Rear door child-protectors .... 188
Side doors............................. 185
Side windows ........................ 218
Drive information ..................... 126
Drive-Start Control .................. 230
Driver’s seat belt reminder light......................................... 595
Driving ...................................... 228
Break-in tips .......................... 230
Correct driving posture ........... 28
Driving in the rain .................. 229
Driving mode select switch ... 347
Hybrid vehicle driving tips ..... 427
Procedures ........................... 228
Winter drive tips .................... 430
Dynamic radar cruise control with full-speed range ............ 326
ECB (Electronically Controlled Brake System) .... 420
Eco drive mode ........................ 347
EDR (Event data recorder) ........ 11
Electric motor (traction motor) Location .................................. 84
Specification ......................... 667 Electric Power Steering
(EPS) ...................................... 421
Function ................................ 421
Warning light......................... 593
Electronic key .......................... 180
Battery-saving function ......... 198
If the electronic key does not operate properly ........... 647
Replacing the battery............ 560
Electronically Controlled Brake System (ECB) ............. 420
Emergency flashers ................ 580
Emergency tire puncture repair kit ................................. 613
Emergency, in case of If a warning buzzer sounds... 592
If a warning light turns on ..... 592
If a warning message is displayed ............................ 603
If the 12-volt battery is
discharged.......................... 650
If the electronic key does not operate properly ........... 647
If the hybrid system will not start .............................. 645
If the vehicle becomes stuck ................................... 661
If the vehicle is trapped in rising water ......................... 582
If you have a flat tire ..... 611, 631
If you lose your keys ..... 181, 184
If you think something is wrong .............................. 591
If your vehicle has to be stopped in an emergency ... 581
If your vehicle needs to be
towed.................................. 584
If your vehicle overheats....... 656
Energy monitor ........ 127, 165, 172
E

729Alphabetical index
PRIUS_OM_OM47E09U_(U)
Engine....................................... 666Accessory mode ................... 247
Compartment ........................ 518
Engine switch (power switch) ................................ 245
Exhaust gas precautions ........ 54
Hood ..................................... 515
How to start the hybrid system ......... ....................... 245
Identification number ............ 666
If the hybrid system will not start .............................. 645
If your vehicle has to be stopped in an emergency ... 581
Ignition switch (power switch) ................................ 245
Overheating .......................... 656
Power switch......................... 245
Engine coolant ......................... 522 Capacity ................................ 670
Checking ............................... 522
Preparing and checking before winter....................... 430
Engine oil ................................. 519 Capacity ................................ 668
Checking ............................... 519
Oil pressure warning light ..... 592
Preparing and checking before winter....................... 430
Engine switch (power
switch) .................................... 245 Auto power off function ......... 247
Automatic hybrid system shut off feature ........................... 249
Changing the power switch modes................................. 247
If your vehicle has to be stopped in an emergency ... 581
Starting the hybrid system .... 245 EPS (Electronic Power
Steering) ................................ 421
Function ................................ 421
Warning light......................... 593
EV drive mode ......................... 252
EV indicator ............................. 129
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 54
Flat tire ............................. 611, 631
Floor mat .................................... 26
Fluid Brake .................................... 671
Transmission ........................ 671
Washer ................................. 530
Fog lights ................................. 273
Replacing light bulbs ............ 577
Switch ................................... 273
Footwell lights ......................... 458
Front camera............................ 289
Front doors .............................. 185
Front fog lights ........................ 273
Replacing light bulbs ............ 577
Switch ................................... 273
Front passenger occupant classification system .............. 49
Front passenger’s seat belt reminder light ........................ 595
Front seat concentrated
airflow mode
(S-FLOW) ....................... 438, 448
Front seats ............................... 204
Adjustment............................ 204
Cleaning ............................... 502
Correct driving posture ........... 28
Head restraints ..................... 209
Seat heaters ......................... 456
Front side marker lights ......... 263
Light switch ........................... 263
Replacing light bulbs ............ 571
Wattage ................................ 674
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730Alphabetical index
PRIUS_OM_OM47E09U_(U)
Front turn signal lights ........... 261Replacing light bulbs............. 577
Turn signal lever ................... 261
Fuel ........................................... 675 Capacity ................................ 667
Fuel gauge ............................ 116
Information ............................ 675
Refueling............................... 283
Type ...................................... 667
Warning light ......................... 594
Fuel consumption............ 133, 170
Fuel filler door.......................... 283
Opener .................................. 285
Refueling............................... 283
When the fuel filler door cannot be opened............... 286
Fuses ........................................ 563
Garage door opener ................ 488
Glove box ................................. 462
Hands-free system (for
cellular phone)
*
Head restraints ........................ 209
Head-up display ....................... 158
Headlights ................................ 263 AHB (Automatic High Beam) ................................. 268
Headlight aim ................ 566, 716
Light switch ........................... 263
Replacing light bulbs............. 577
Heated steering wheel............. 456
Heaters Automatic air conditioning
system ....... ................. 436, 446
Heated steering wheel .......... 456
Outside rear view mirrors ........................ 440, 450
Seat heaters ......................... 456 High coolant temperature
warning light.......................... 594
High mounted stoplight Replacing.............................. 577
High-voltage components ........ 88
Hill-start assist control ........... 421
Hood ......................................... 515
Hooks
Cargo hooks ......................... 468
Coat hooks ........................... 486
Grocery bag hook ................. 469
Retaining hooks (floor mat) .... 26
Horn .......................................... 212
Hybrid battery (tr action battery)
Air intake vent ......................... 89
Location .................................. 88
Specification ......................... 667
Hybrid battery (traction battery) air intake vent............ 89 Cleaning ............................... 551
Hybrid system............................ 84 Brake Override System ........ 229
Drive-Start Control ................ 230
Emergency shut off system .... 89
Energy monitor/consumption
screen ................ 127, 165, 172
EV drive mode ...................... 252
High voltage components ....... 88
Hybrid System Indicator ....... 129
Hybrid system precautions ..... 88
Hybrid vehicle driving tips ..... 427
If the hybrid system will not start .................................... 645
Overheating .......................... 656
Power switch ........................ 245
Regenerative braking ............. 86
Starting the hybrid system .... 245
Vehicle proximity notification system .......... ..................... ... 85
Hybrid System Indicator ......... 129
Hybrid transmission................ 255
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H

731Alphabetical index
PRIUS_OM_OM47E09U_(U)
I/M test ...................................... 511
Identification ............................ 665Engine................................... 666
Vehicle .................................. 665
Ignition switch (power
switch) .................................... 245 Auto power off function ......... 247
Automatic hybrid system shut off feature ........................... 249
Changing the power switch modes................................. 247
If your vehicle has to be stopped in an emergency ... 581
Starting the hybrid system .... 245
Illuminated entry system ........ 460
Immobilizer system ................... 95
Indicators ................................. 107
Initialization .............................. 701 Items to initialize ................... 701
Maintenance data ................. 506
Moon roof.............................. 225
Parking Support Brake function ............................... 383
Power windows ..................... 219
S-APGS (Simple Advanced Parking Guidance
System) .............................. 410
Tire pressure warning system ......... ....................... 535
Inside rear view mirror ............ 214
Instrument cluster light
control .................................... 100
Interior lights............................ 458
Switch ........................... 459, 460
Wattage ................................ 674
Intuitive parking assist............ 362 Jack
Positioning a floor jack.......... 517
Vehicle-equipped
jack ............................. 613, 632
Jack handle ...................... 613, 632
Jam protection function
Moon roof ............................. 224
Power windows..................... 219
Keyless entry ........................... 186 Smart key system ................. 196
Wireless remote control ........ 186
Keys .......................................... 180
Battery-saving function ......... 198
Electronic key ....................... 180
Engine switch (power switch) ................................ 245
If the electronic key does not operate properly ........... 647
If you lose your keys ..... 181, 184
Key number plate ................. 180
Keyless entry ........................ 186
Mechanical key ..................... 181
Power switch ........................ 245
Replacing the battery............ 560
Smart key system ................. 196
Warning buzzer .................... 197
Wireless remote control ........ 186
Knee airbag ................................ 35
IJ
K
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

734Alphabetical index
PRIUS_OM_OM47E09U_(U)
Personal lights ......................... 458Switch ................................... 459
Wattage ................................ 674
Power control unit coolant ..... 522 Capacity ................................ 670
Checking ............................... 522
Preparing and checking before winter....................... 430
Radiator ................................ 524
Power outlets ........................... 474
Power steering (Electric Power Steering) ..................... 421 Function ................................ 421
Warning light ......................... 593
Power switch............................ 245 Auto power off function ......... 247
Automatic hybrid system shut off feature ........................... 249
Changing the power switch modes................................. 247
If your vehicle has to be stopped in an emergency ... 581
Starting the hybrid system .... 245
Power windows........................ 218 Catch protection function ...... 219
Door lock linked window operation ............................ 220
Jam protection function......... 219
Operation .............................. 218
Window lock switch............... 218
Pre-Collision System (PCS) .... 296 Enabling/disabling the system ......... ....................... 300
Function ................................ 296
Warning light ......................... 593
Radar cruise control Dynamic radar cruise control
with full-speed range .......... 326
Radiator .................................... 524
Radio
*
RCTA (Rear Cross Traffic Alert)....................................... 357
Blind Spot Monitor function............................... 354
Rear Cross Traffic Alert
function............................... 357
Rear Cross Traffic Alert (RCTA).................................... 357
Blind Spot Monitor function............................... 354
Rear Cross Traffic Alert
function............................... 357
Rear passengers’ seat belt reminder light ........................ 595
Rear seat .................................. 206
Rear side marker lights........... 263 Light switch ........................... 263
Replacing light bulbs ............ 572
Wattage ................................ 674
Rear turn signal lights ............ 261
Replacing light bulbs ............ 572
Turn signal lever ................... 261
Wattage ................................ 674
Rear view mirror Inside rear view mirror .......... 214
Outside rear view mirrors ..... 216
Rear view monitor system
*
Rear window defogger .... 440, 450
Rear window wiper .................. 281
Refueling .................................. 283
Capacity................................ 667
Fuel types ............................. 667
Opening the fuel tank cap..... 285
When the fuel filler door cannot be opened .............. 286
Regenerative braking ................ 86
Replacing
Electronic key battery ........... 560
Fuses .................................... 563
Light bulbs ............................ 568
Tires...................................... 631
Wiper insert .......................... 556
Reporting safety defects for U.S. owners...................... 704
R

736Alphabetical index
PRIUS_OM_OM47E09U_(U)
Side marker lights ................... 263Light switch ........................... 263
Replacing light bulbs..... 571, 572
Wattage ................................ 674
Side mirrors ............................. 216
Adjustment ............................ 216
BSM (Blind Spot Monitor) ..... 349
Folding .................................. 216
Outside rear view mirror defoggers ................... 440, 450
Side windows ........................... 218
Water-repellent coating......... 497
Simple Advanced Parking Guidance System
(S-APGS) ................................ 386
Smart key system .................... 196 Antenna location ................... 196
Entry functions .............. 185, 191
Starting the hybrid system .... 245
Snow tires ................................ 430
“SOS” button ............................. 76
Spare tire .................................. 631 Inflation pressure .................. 672
Storage location .................... 632
Spark plug ................................ 670
Specifications .......................... 664
Speedometer ............................ 116
SRS airbags ............................... 35
Steering wheel ......................... 212 Adjustment ............................ 212
Audio switches
*
Heated steering wheel .......... 456
Meter control switches ............ 99
Talk switch
*
Telephone switches*
TRIP switch........................... 119
Stop lights Replacing light bulbs............. 577
Storage feature ........................ 461
Storage precautions ................ 461 Stuck
If the vehicle becomes
stuck ................................... 661
Sun visors ................................ 473
Sunshade Moon roof ............................. 224
Switch Audio remote control
switches
*
Automatic High Beam switch ................................. 268
Cruise control switch .... 326, 342
Door lock switches................ 187
Driving mode select switch ... 347
Emergency flashers switch ... 580
Engine switch (power switch) ................................ 245
EV drive mode switch ........... 252
Fog light switch ..................... 273
Fuel filler door opener switch ................................. 285
Garage door opener buttons ............................... 488
Heated steering wheel .......... 456
“HUD” (Head-up display) switch ................................. 158
Ignition switch (power
switch) ................................ 245
Instrument cluster light control switch ..................... 100
Light switch ........................... 263
LTA (Lane Tracing Assist) switch ................................. 315
Meter control switches ............ 99
Moon roof switches............... 223
Outside rear view mirror switches ............................. 216