2022 TOYOTA PRIUS check engine light

491
PRIUS_OM_OM47F01U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 492
Cleaning and protecting the vehicle interior ........... 498
6-2. Maintenance Maintenance requirements ................... 501
General maintenance........ 504
Emission inspection and maintenance (I/M)
programs......................... 507
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 508
Hood ................................. 511
Positioning a floor jack ...... 513
Engine compartment ......... 514
Tires .................................. 528
Tire inflation pressure ....... 537
Wheels .............................. 540
Air conditioning filter.......... 543
Cleaning the hybrid battery (traction battery) air intake
vent and filter .................. 546
Wiper insert replacement .................... 551
Electronic key battery........ 555
Checking and replacing fuses ............................... 558
Headlight aim .................... 561
Light bulbs......................... 563

5907-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
Slip indicator lightIndicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
 Have the vehicle inspected by your Toyota dealer
immediately.
The light will flash when the ABS, VSC or TRAC system is
operating.
High coolant temperature warning light • When the light flashes:
Indicates that the engine coolant temperature is too high
The light changes from a flashing to a solid light when
the temperature further increases
 Immediately stop the vehicle in a safe place. ( P. 652)
• When the light comes on without flashing: Indicates a malfunction in the exhaust heat recirculator
system
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
(If equipped)
PKSB OFF indicator
Indicates a malfunction in the Parking Support Brake func-
tion
 Have the vehicle inspected by your Toyota dealer.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the Parking Support Brake function is turned off ( P. 372)
• The light will come on when the Parking Support Brake function is operating ( P. 376)
• The light will flash when the system cannot be temporar- ily used ( P. 378)
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 1.7 gal.
(6.4 L, 1.4 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

6487-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
To install the engine cover, conduct the removal procedure in
reverse. After installing, check that the fixed pins are inserted
securely.
Once the hybrid system starts, have the vehicle inspected at yo ur
Toyota dealer as soon as possible.
■ When opening the cover of the positive (+) battery terminal
P. 521
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid s ystem is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic .
■ When the 12-volt battery is removed or discharged
● Information stored in the ECU is cleared. When the 12-volt batt ery is
depleted, have the vehicle inspected at your Toyota dealer.
● Some systems may require initialization. ( P. 697)
■ When removing the 12-vo lt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact your
Toyota dealer.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gr adually even when
the vehicle is not in use, due to natural discharge and the dra ining effects of
certain electrical appliances. If the vehicle is left for a lon g time, the 12-volt
battery may discharge, and the hybrid system may be unable to s tart. (The
12-volt battery recharges automatically while the hybrid system is operating.)
7
8

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

735Alphabetical index
PRIUS_OM_OM47F01U_(U)
Warning lights.......................... 107ABS....................................... 589
Brake Override System......... 592
Brake system ....... ................. 588
Charging system ................... 588
Drive-Start Control ................ 592
Driver’s seat belt reminder light ..................................... 591
Electronic engine control system ......... ....................... 588
Electric power steering
system ......... ....................... 589
Front passenger’s seat belt reminder light...................... 591
High coolant temperature ..... 590
Low engine oil pressure ........ 588
Low fuel level ........................ 590
Malfunction indicator lamp .... 588
Master warning light.............. 591
Open door ............................. 590
Parking Support Brake function ............................... 592
PCS ...................................... 589
PKSB OFF indicator ............. 590
Rear passengers’ seat belt
reminder light...................... 591
Seat belt reminder light ......... 591
Slip indicator ......................... 590
SRS ...................................... 589
Tire pressure......................... 591 Warning messages.................. 599
Warning reflector storage
space ...................................... 464
Washer ............................. 269, 275 Checking............................... 526
Preparing and checking
before winter ...................... 425
Switch ........................... 269, 275
Washing and waxing ............... 492
Water-repellent coating .......... 493
Weights .................................... 660 Cargo capacity...................... 236
Load limits ............................ 660
Wheels ...................................... 540
Replacing wheels ................. 627
Size....................................... 668
Window glasses ...................... 212
Window lock switch ................ 212
Windows Power windows..................... 212
Rear window
defogger ..................... 434, 444
Washer ......................... 269, 275
Windshield wipers ................... 269 Handling the wiper arms ....... 497
Rain-sensing windshield wipers ................................. 271
Replacing the wiper insert .... 551
Winter driving tips ................... 425
Wiper insert replacement ....... 551
Wireless charger ..................... 471
Wireless remote control ......... 176 Battery-Saving Function ....... 194
Locking/Unlocking ................ 182
Panic mode........................... 177
Replacing the battery............ 555
WMA disc
*1
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: Refer to “NAVIGATION S YSTEM OWNER’S MANUAL”.