2022 TOYOTA PRIUS heating

652
PRIUS_OM_OM47F01U_(U)
7-2. Steps to take in an emergency
If your vehicle overheats
■If the high coolant temperature warning light comes on or
flashesStop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect t he
hoses and radiator core (ra diator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
The following may indicate that your vehicle is overheating.
● The high coolant temperature warning light ( P. 590) comes on
or flashes, or a loss of hybrid system power is experienced. (F or
example, the vehicle s peed does not increase.)
● “Hybrid System Overheated” is shown on the multi-information
display.
● Steam comes out from under the hood.
Correction procedures
1
2
3
1
2

723Alphabetical index
PRIUS_OM_OM47F01U_(U)
CleaningAluminum wheels.................. 493
Exterior ................................. 492
Front camera ........................ 285
Hybrid battery (traction
battery) air intake vent ........ 546
Interior................................... 498
Radar sensor ........................ 284
Seat belts .............................. 499
Water-repellent coating......... 493
Clock ........................................... 98
Adjustment ............................ 103
Coat hooks ............................... 480
Combination meter .................... 98 Clock adjustment .................. 103
Main display .......................... 115
Multi-information display ....... 124
Warning lights and indicators ............................ 107
Condenser ................................ 520
Console box ............................. 456
Consumption screen ....... 165, 170
Coolant ..................................... 518
Capacity ................................ 666
Checking ............................... 518
Preparing and checking before winter....................... 425
Cooling system ........................ 518 Engine overheating ............... 652
Hybrid system overheating ... 654
Cruise control Cruise control........................ 337
Dynamic radar cruise control with full-speed range .......... 321
Cup holders.............................. 457
Curtain shield airbags ............... 35
Customizable features ............ 686 Daytime running light
system.................................... 260
Deck board ............................... 461
Defogger Outside rear view
mirrors ........................ 434, 444
Rear window ................. 434, 444
Windshield .................... 434, 444
Dimension ................................ 660
Dinghy towing.......................... 238
Display BSM (Blind Spot Monitor) ..... 344
Drive information .................. 126
Dynamic radar cruise control with full-speed range .......... 321
Energy monitor ..... 127, 165, 170
Head-up display.................... 158
Intuitive parking assist .......... 359
LTA (Lane Tracing Assist) .... 311
Main display.......................... 115
Multi-information display ....... 124
Parking Support Brake function............................... 376
RCTA detection screen ........ 344
RSA (Road Sign Assist) ....... 318
S-APGS (Simple Advanced Parking Guidance
System) .............................. 385
Pre-collision warning ............ 292
Trip information..................... 119
Warning messages ............... 599
Do-it-yourself maintenance .... 508
Door courtesy lights ............... 452 Location ................................ 452
Wattage ................................ 670D
*: Refer to “MULTIMEDIA OWNER’S MANUAL”.

725Alphabetical index
PRIUS_OM_OM47F01U_(U)
Engine....................................... 662Accessory mode ................... 241
Compartment ........................ 514
Engine switch (power switch) ................................ 239
Exhaust gas precautions ........ 54
Hood ..................................... 511
How to start the hybrid system ......... ....................... 239
Identification number ............ 662
If the hybrid system will not start .............................. 641
If your vehicle has to be stopped in an emergency ... 577
Ignition switch (power switch) ................................ 239
Overheating .......................... 652
Power switch......................... 239
Engine coolant ......................... 518 Capacity ................................ 666
Checking ............................... 518
Preparing and checking before winter....................... 425
Engine oil ................................. 515 Capacity ................................ 664
Checking ............................... 515
Oil pressure warning light ..... 588
Preparing and checking before winter....................... 425
Engine switch (power
switch) .................................... 239 Auto power off function ......... 241
Automatic hybrid system shut off feature ........................... 243
Changing the power switch modes................................. 241
If your vehicle has to be stopped in an emergency ... 577
Starting the hybrid system .... 239 EPS (Electric Power
Steering) ................................ 416
Function ................................ 416
Warning light......................... 589
EV drive mode ......................... 246
EV indicator ............................. 129
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 54
Flat tire ............................. 607, 627
Floor mat .................................... 26
Fluid Brake .................................... 667
Transmission ........................ 667
Washer ................................. 526
Fog lights ................................. 267
Replacing light bulbs ............ 572
Switch ................................... 267
Footwell lights ......................... 452
Front camera............................ 283
Front doors .............................. 181
Front fog lights ........................ 267
Replacing light bulbs ............ 572
Switch ................................... 267
Front passenger occupant classification system .............. 49
Front passenger’s seat belt reminder light ........................ 591
Front seat concentrated
airflow mode
(S-FLOW) ....................... 432, 442
Front seats ............................... 198
Adjustment............................ 198
Cleaning ............................... 498
Correct driving posture ........... 28
Head restraints ..................... 203
Seat heaters ......................... 450
Front side marker lights ......... 257
Light switch ........................... 257
Replacing light bulbs ............ 566
Wattage ................................ 670
F

726Alphabetical index
PRIUS_OM_OM47F01U_(U)
Front turn signal lights ........... 255Replacing light bulbs............. 572
Turn signal lever ................... 255
Fuel ........................................... 671 Capacity ................................ 663
Fuel gauge ............................ 116
Information ............................ 671
Refueling............................... 277
Type ...................................... 663
Warning light ......................... 590
Fuel consumption............ 133, 168
Fuel filler door.......................... 277
Opener .................................. 279
Refueling............................... 277
When the fuel filler door cannot be opened............... 280
Fuses ........................................ 558
Garage door opener ................ 482
Glove box ................................. 456
Hands-free system (for
cellular phone)
*
Head restraints ........................ 203
Head-up display ....................... 158
Headlights ................................ 257 AHB (Automatic High Beam) ................................. 262
Headlight aim ................ 561, 713
Light switch ........................... 257
Replacing light bulbs............. 572
Heated steering wheel............. 450
Heaters Automatic air conditioning
system ....... ................. 430, 440
Heated steering wheel .......... 450
Outside rear view mirrors ........................ 434, 444
Seat heaters ......................... 450 High coolant temperature
warning light.......................... 590
High mounted stoplight Replacing.............................. 572
High-voltage components ........ 89
Hill-start assist control ........... 416
Hood ......................................... 511
Hooks
Cargo hooks ......................... 462
Coat hooks ........................... 480
Grocery bag hook ................. 463
Retaining hooks (floor mat) .... 26
Horn .......................................... 206
Hybrid battery (tr action battery)
Air intake vent ......................... 90
Location .................................. 89
Specification ......................... 663
Hybrid battery (traction battery) air intake vent............ 90 Cleaning ............................... 546
Hybrid system............................ 84 Brake Override System ........ 223
Drive-Start Control ................ 224
Emergency shut off system .... 90
Energy monitor/consumption
screen ................ 127, 165, 170
EV drive mode ...................... 246
High voltage components ....... 89
Hybrid System Indicator ....... 129
Hybrid system precautions ..... 89
Hybrid vehicle driving tips ..... 422
If the hybrid system will not start .................................... 641
Overheating .......................... 652
Power switch ........................ 239
Regenerative braking ............. 87
Starting the hybrid system .... 239
Vehicle proximity notification system .......... ..................... ... 85
Hybrid System Indicator ......... 129
Hybrid transmission................ 249
G
H

729Alphabetical index
PRIUS_OM_OM47F01U_(U)
Multi-information display ........ 124Air conditioning system
settings screen ................... 146
Audio system-linked display ................................ 145
Display contents ................... 124
Drive information................... 126
Driving assist system information.......................... 150
Dynamic radar cruise control with full-speed range .......... 321
Energy monitor ..................... 127
Intuitive parking assist .......... 359
Language .............................. 153
LTA (Lane Tracing Assist) .... 311
Navigation system-linked display ................................ 145
Parking Support Brake function ............................... 376
Pre-collision warning............. 292
RCTA detection screen......... 344
RSA (Road Sign Assist)........ 318
S-APGS (Simple Advanced
Parking Guidance
System) .............................. 385
Settings display..................... 151
Warning message display..... 150
Navigation system
*2
Noise from under vehicle............ 8
Odometer.................................. 119
Oil Engine oil .............................. 664 Opener
Back door ............................. 187
Fuel filler door ....................... 279
Garage door ......................... 482
Hood ..................................... 511
Outside rear view mirrors ....... 210 Adjustment............................ 210
BSM (Blind Spot Monitor) ..... 344
Folding .................................. 210
Outside rear view mirror defoggers ................... 434, 444
Outside temperature display.................................... 116
Overhead console ................... 459
Overheating ............................. 652
P position switch ..................... 250
Panic mode .............................. 177
Parking assist sensors
Intuitive parking assist .......... 358
Parking Support Brake function............................... 370
S-APGS (Simple Advanced Parking Guidance
System) .............................. 381
Parking brake........................... 256
Operation .............................. 256
Parking brake engaged warning buzzer ................... 256
Parking lights........................... 257 Light switch ........................... 257
Replacing light bulbs .... 565, 572
Wattage ................................ 670
Parking lock ............................. 250
PCS (Pre-Collision System).... 291 Enabling/disabling the system .......... ...................... 295
Function ................................ 291
Warning light......................... 589
N
O
P
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: Refer to “NAVIGATION S YSTEM OWNER’S MANUAL”.