warning TOYOTA COROLLA HYBRID 2021 Owners Manual (in English)

565What to do if... (Troubleshooting)
COROLLA HV_U
 Is the power switch in ON?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON. ( P.165)
 It is locked automatically to
prevent theft of the vehicle.
( P.158)
 Is the window lock switch
pressed?
The power window except for the
one at the driver’s seat cannot be
operated if the win dow lock switch
is pressed. ( P.144)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
hybrid system is not operat-
ing) for a period of time.
( P.160)
 The seat belt reminder light is flashing
Are the driver and the passenger
wearing the seat belts? (
P.481)
 The parking brake indicator is
on
Is the parking br ake released?
(  P.167)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.478, 487)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 9 0 )
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
 Is the electronic key left inside
the vehicle?
Check the message on the
multi-informat ion display. (P.487)
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
hybrid system is stopped
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds
A warning buzzer sounds
when leaving the vehicle

566What to do if... (Troubleshooting)
COROLLA HV_U
 When a warning light turns on
or a warning message is dis-
played, refer to P.478, 487.
 Vehicles with an emergency
tire puncture repair kit: Stop
the vehicle in a safe place and
repair the flat tire temporarily
with the emergency tire punc-
ture repair kit. ( P.490)
 Vehicles with a spare tire:
Stop the vehicle in a safe
place and replace the flat tire
with the spare tire. ( P.501)
 Try the procedure for when
the vehicle becomes stuck in
mud, dirt, or snow. ( P.520)
A warning light turns on
or a warning message is
displayed
When a problem has
occurred
If you have a flat tire
The vehicle becomes
stuck

567Alphabetical Index
COROLLA HV_U
Alphabetical Index
A
A/C Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 386
ABS (Anti-lock Brake System) ............................................... 240Warning light ........................ 480
ACA (Active Cornering Assist) ............................................... 240
Active Cornering Assist (ACA) ............................................... 240
Air conditioning filter ............. 454
Air conditioning system Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 386
Airbags Airbag operating conditions.... 33
Airbag precautions for your child............................................. 36
Correct driving posture ........... 25
Curtain shield airbag operating conditions ............................. 34
Curtain shield airbag precautions ............................................. 36
Front passenger occupant clas- sification system ................... 41
General airbag precautions .... 36
Locations of airbags ............... 31
Modification and disposal of air- bags ..................................... 39
Side airbag operating conditions ............................................. 34
Side airbag precautions ......... 36
Side and curtain shield airbags operating conditions ............. 34
Side and curtain shield airbags precautions........................... 36
SRS airbags ........................... 31
SRS warning light................. 480 Alarm
Alarm ......................................90
Warning buzzer ....................478
AM ............................................303
Anchor brackets ... ..............50, 68
Android Auto ...........................314
Antennas (smart key system)125
Anti-lock Brake System (ABS) ...............................................240Warning light.........................480
Apple CarPlay/Android Auto .284 Troubleshooting ....................287
Approach warning ..................214
Apps button (Menu screen) ...255
Armrest ......... ......................... ..410
Assist grips .............................410
Audio .......................................298 Audio source ........................299
Operating information ...........322
Reordering the audio source 299
Screen adjustment ...............301
Some basics .........................299
Sound settings......................300
Turning the sys tem on and off
...........................................299
USB port ...............................300
Voice command system .......302
AUDIO button ..........................253
Audio button (Menu screen) ..255
Audio buttons overview .........253
Audio settings.........................321 Common settings .................321
Radio settings.......................321
Audio source...........................299
Audio system-linked display .107
Automatic air conditioning sys- tem .........................................386
Automatic High Beam ............175
Automatic light control system ...............................................174
Average fuel economy ...........104
Average vehicle speed ...........107

568Alphabetical Index
COROLLA HV_U
B
Back-up lights Replacing light bulbs ............ 466
Wattage ................................ 530
Battery (12-volt battery) Battery checking................... 439
If the 12-volt battery is dis-charged .............................. 513
Preparing and c hecking before
winter.................................. 247
Warning light ........................ 479
Battery (traction battery) ......... 83
Blind Spot Monitor (BSM) ...... 221
Bluetooth
® audio .................... 315
Registering/Conn ecting a Blue-
tooth
® device...................... 317
Bluetooth® button (Setup
screen) .................................. 258
Bluetooth
® details settings ... 272
Bluetooth® setup screen ...... 273
Connecting a Bluetooth® device
........................................... 273
Deleting a Bluetooth
® device275
Detailed settings screen ....... 277
Displaying the Bluetooth
® setup
screen ................................ 272
Editing the Bluetooth
® device
information ......................... 276
Registering a Bluetooth
® device
........................................... 275
Bluetooth
® device information
............................................... 276
Bluetooth
® hands-free system
............................................... 343
Bluetooth
® phone message func-
tion......................................... 354 Calling the message sender. 357
Checking received messages ........................................... 355
Displaying the message screen ........................................... 354 Receiving a mess
age ...........354
Replying to a message (dicta- tion reply)............................356
Replying to a message (quick reply) ..................................356
Bottle holders .........................398
Brake Brake hold ............................170
Fluid..............................438, 528
Parking brake .......................167
Regenerative braking .............81
Warning light.........................478
Brake assist ............................240
Break-in tips ............................147
Brightness control Instrument panel light control101
BSM (Blind Spot Monitor) ......221
C
Care Exterior .................................420
Interior ..................................422
Seat belts .............................422
Wheels and wheel ornaments...........................................420
Cargo capacity ........................155
Chains......................................248
Child restraint system Fixed with a LATCH system ...64
Fixed with a seat belt..............59
Front passenger occupant clas-sification system ...................41
Points to remember ................48
Riding with children ................47
Types of child restraint system installation method ...............50
Using an anchor bracket ........68
Child safety 12-volt battery precautions .439, 516
Airbag precautions .................36
Child restraint system .............50

569Alphabetical Index
COROLLA HV_U
Heated steering wheel and seat
heater precautions ............. 393
How your child should wear the seat belt................................ 28
Power window lock switch.... 144
Power window precautions .. 143
Rear door child-protectors.... 122
Removed electronic key battery precautions......................... 460
Seat belt extender precautions ............................................. 28
Seat belt precautions ............. 47
Trunk precautions................. 123
Child-protectors ..................... 122
Cleaning Exterior ................................. 420
Interior .................................. 422
Radar sensor........................ 184
Seat belts ............................. 422
Wheels and wheel ornaments........................................... 420
Clock ......................... 98, 101, 292
Coat hooks .............................. 410
Command list ......................... 337
Condenser .............................. 437
Console box ............................ 399
Cooling system ...................... 436 Engine overheating .............. 517
Hybrid system overheating... 518
Cruise control Dynamic radar cruise control with full-speed range .......... 207
Cup holders ............................ 398
Current fuel consumption ..... 104
Curtain shield airbags ............. 31
Customizable features ........... 544
D
Daytime running light system173
DCM ................................. 376, 377
Defogger Outside rear view mirrors ..... 387 Rear window.........................387
Windshield ............................387
Dimensions .............................524
Dinghy towing .........................156
Display Dynamic radar cruise control with full-speed range ..........207
Energy monitor .....................109
LTA (Lane Tracing Assist) .....202
Multi-information display.......103
RCTA ....................................226
Warning message.................487
Display change button ...........100
Do-it-yourself maintenance ...426
Door lock Doors .................................... 119
Smart key system .................125
Wireless remote control........ 117
Doors Automatic door locking and unlocking system ................122
Door glasses ........................142
Door lock .............................. 119
Open door warning buzzer .120, 122
Outside rear view mirrors .....140
Rear door child-protectors ....122
Side doors ............................ 119
Drive distance .........................107
Drive information ....................107
Drive-start control ..................147
Driving Break-in tips .........................147
Correct driving posture ...........25
Driving mode select switch ...239
Hybrid vehicle dri ving tips .....245
Procedures ...........................146
Winter drive tips....................247
Driving informatio n display ...104
Driving range ..........................104
Driving support system informa- tion display............................107

570Alphabetical Index
COROLLA HV_U
Dynamic radar cruise control with full-speed range ........... 207Warning message ................ 216
E
ECB (Electronically Controlled Brake System) ...................... 240
ECO Accelerator Guidance ... 105
Eco score ................................ 105
EDR (Event data recorder)......... 8
Elapsed time ........................... 107
Electric motor (traction motor)80
Electric Power Steering (EPS) ............................................... 240Warning light ........................ 481
Electronic key ......................... 116 Battery-saving function......... 126
If the electronic key does not operate properly ................. 511
Replacing the battery ........... 459
Electronically Controlled Brake System (ECB) ....................... 240
Emergency flashers ............... 470
Emergency tire puncture repair kit ........................................... 490
Emergency, in case of If a warning buzzer sounds .. 478
If a warning light turns on ..... 478
If a warning message is dis-played................................. 487
If the 12-volt battery is dis- charged .............................. 513
If the electronic key does not operate properly ................. 511
If the fuel filler door cannot be opened ............................... 511
If the hybrid sy stem will not start
........................................... 509
If the vehicle is trapped in rising water .................................. 472
If you have a fla t tire ..... 490, 501
If you lose your keys ............ 510 If you think something is wrong
...........................................476
If your vehicle becomes stuck ...........................................520
If your vehicle has to be stopped in an emergency .................471
If your vehicle needs to be towed ...........................................473
If your vehicle ove rheats ......517
Energy monitor .......................109
Engine ACCESSORY mode . ............160
Compartment........................434
Engine switch .......................157
Hood .....................................432
How to start the hybrid system ...........................................157
Identification number ............525
If the hybrid sys tem will not start
...........................................509
If your vehicle has to be stopped in an emergency .................471
Ignition switch (power switch) ...........................................157
Overheating ..........................517
Power switch ........................157
Tachometer.............................98
Engine coolant Capacity ...............................527
Checking ..............................436
Preparing and checking before winter ..................................247
Engine coolant temperature gauge .......................................98
Engine oil Capacity ...............................526
Checking ..............................434
Preparing and checking before winter ..................................247
Warning light.........................479

571Alphabetical Index
COROLLA HV_U
Engine switch (power switch)157 If your vehicle has to be stopped in an emergency................. 471
Enhanced VSC ........................ 240
Entering letters and num- bers/list screen operation ... 263Entering letters and numbers263
List screen ............................ 264
EPS (Electric Power Steering) ............................................... 240Warning light ........................ 481
Establishing an Android Auto connection ............................ 285
Establishing an Apple CarPlay connection ............................ 284
EV drive mode ........................ 162
EV indicator .............................. 81
Event data recorder (EDR)......... 8
F
Flat tire Tire pressure warning system........................................... 443
Vehicles with a spare tire ..... 501
Vehicles without a spare tire 490
Floor mats ................................. 24
Fluid Brake .................................... 528
Hybrid transmission.............. 528
Washer ................................. 440
FM ............................................ 303
Front passenger occupant clas- sification system .................... 41
Front seats Adjustment ........................... 133
Cleaning ............................... 422
Correct driving posture ........... 25
Head restraints ..................... 136
Seat heaters ......................... 393
Front side marker lights Light switch .......................... 173
Replacing light bulbs ............ 464 Wattage ................................530
Front turn signal lights Replacing light bulbs ............464
Turn signal lever ...................166
Fuel Capacity ...............................525
Fuel gauge .............................98
Information ......... ..................531
Refueling ..............................180
Type......................................525
Warning light.........................481
Fuel consumption Average fuel economy ..........104
Current fuel consumption .....104
Fuel economy .........................104
Fuel filler door If the fuel filler door cannot be opened ............................... 511
Refueling ..............................180
Fuel gauge.................................98
Functional overview ...............372
Fuses .......................................461
G
Garage door opene r ............... 411
Gauges ......................................98
General button (Setup screen) .......................................258, 291
General settings .....................291 Displaying the general settings screen.................................291
General settings screen .......291
Glove box ................................398
H
Hands-free system .................343
Head restraints .......................136
Headlights Automatic High Beam system...........................................175
Light switch...........................173

572Alphabetical Index
COROLLA HV_U
Headlights/daytime running lightsReplacing light bulbs ............ 464
Heated steering wheel ........... 393
Heaters Automatic air conditioning sys-tem ..................................... 386
Heated steering wheel ......... 393
Outside rear view mirrors ..... 387
Seat heaters ......................... 393
High mounted stoplight Replacing light bulbs ............ 464
High-voltage components ....... 83
Hill-start assist control .......... 240
HOME button .......................... 262
Home screen ........................... 262
Hood Open .................................... 432
Hooks Coat hooks ........................... 410
Retaining hooks (floor mat) .... 24
Horn ......................................... 138
Hybrid battery (tr action battery)
Location.................................. 83
Specification ......................... 526
Warning message .................. 87
Hybrid battery (traction battery) air intake vent ....................... 455
Hybrid battery (traction battery) air vents .................................. 86
Hybrid system .......................... 80 Emergency shut off system .... 87
Energy monitor/consumption screen ................................ 109
EV drive mode...................... 162
High voltage components....... 83
Hybrid system precautions ..... 83
If the hybrid sy stem will not start
........................................... 509
Overheating.......................... 518
Power (ignition) switch ......... 157
Regenerative braking ............. 81 Starting the hybrid system ....157
Hybrid System Indicator ........105
Hybrid transmissio n ...............164
Hybrid vehicle dri ving tips.....245
I
I/M test .....................................429
Identification
Engine ..................................525
Vehicle ..................................524
Ignition switch (power switch) ...............................................157Auto power off fun ction .........160
Changing the power switch modes.................................160
If your vehicle has to be stopped in an emergency .................471
Illuminated entry system .......396
Immobilizer system ..................88
Indicators ..................................96
Info button (Menu screen) .....255
Initial screen............................259 Caution screen .....................259
Restarting the system ...........259
Initialization Items to initialize ...................552
Maintenance .........................426
Power windows ....................142
Tire pressure w arning system
...........................................447
Inside rear view m irror ...........139
Instrument panel light control ...............................................101
Interior lights...........................395 Front interior light .................395
Rear interior light ..................395
Wattage ................................530
Internet radio...........................308
iPod/iPhone(Apple Carplay) .. 311

573Alphabetical Index
COROLLA HV_U
J
Jack Positioning a floor jack ......... 433
Vehicle-equipped jack .. 492, 502
Jack handle ..................... 492, 502
Jam protection function Power windows .................... 142
K
Keyless entrySmart key system................. 125
Wireless remote control ....... 117
Keys Battery-saving function......... 126
Electronic key ....................... 116
If the electronic key does not operate properly ................. 511
If you lose your keys ............ 510
Key number plate ................. 116
Keyless entry................ 119, 125
Mechanical key .................... 116
Power switch ........................ 157
Replacing the battery ........... 459
Warning buzzer .................... 126
Wireless remote control ....... 117
Knee airbags ............................. 31
L
Lane Tracing Assist (LTA) Operation ............................. 197
Warning messages............... 206
Language (multi-information dis- play) ....................................... 108
LATCH anchors ........................ 64
LED accent lights Light switch .......................... 173
Replacing light bulbs ............ 464
Lever Auxiliary catch lever ............. 432
Hood lock release lever........ 432 Internal trunk rele
ase lever ...125
Shift lever .............................164
Turn signal lever ...................166
Wiper lever ...........................178
License plate lights Light switch...........................173
Replacing light bulbs ............464
Wattage ................................530
Light bulbs Replacing .............................463
Lights Automatic High Beam system...........................................175
Front interior lights................395
Headlight switch ...................173
Interior lights .........................395
Interior lights list ...................395
Personal lights ......................396
Rear interior lights ................395
Replacing light bulbs ............464
Trunk light .............................124
Turn signal lever ...................166
Vanity lights ..........................409
Wattage ................................530
Linking multi-information display and the system .....................267
Lock steering column ............158
LTA (Lane Tracing Assist) Operation..............................197
Warning messages ...............206
M
MaintenanceDo-it-yourself maintenance ..430
General maintenance ...........426
Maintenance data .................524
Maintenance requirements ...425
Malfunction indicator lamp ....479
Media button (Menu screen) ..255
Menu icons ..............................103
Menu screen............................255 Menu screen operation.........255

574Alphabetical Index
COROLLA HV_U
Meter Clock ...................................... 98
Indicators................................ 96
Instrument panel light control101
Meter control switches ......... 103
Meters .................................... 98
Multi-information display ...... 103
Settings ................................ 108
Warning lights....................... 478
Warning message ................ 487
Microphone ............................. 346
Mirrors Inside rear view mirror.......... 139
Outside rear view mirror defog-gers .................................... 387
Outside rear view mirrors ..... 140
Vanity mirrors ....................... 409
Mobile Assistant ..................... 341 Connectable devices and avail-able functions ..................... 341
Mobile Assistant operation ... 341
Multi-information display Audio system-linked display . 107
Clock .................................... 101
Driving information display ... 104
Driving support system informa-tion display ......................... 107
Dynamic radar cruise control with full-speed range .......... 207
ECO Accelerator Guidance .. 105
Eco score ............................. 105
Energy monitor ..................... 109
Fuel economy....................... 104
Hybrid System Indicator ....... 105
LTA (Lane Tracing Assist) ..... 202
Menu icons ........................... 103
Meter control switches ......... 103
Settings ................................ 108
Tire pressure ........................ 443
Vehicle information display... 107
Warning message ................ 487N
Noise from under ve hicle...........6
O
Odometer.................................100
Odometer and trip meter display
Display change button ..........100
Display items ........................100
Oil Engine oil..............................526
Open trays ...............................399
Opener Fuel filler door.......................180
Hood .....................................432
Trunk ....................................124
Outside rear view mirrors Adjustment ...........................140
BSM (Blind Spot M onitor) .....221
Folding..................................141
Outside rear view mirror defog- gers ....................................387
RCTA function.......................226
Outside temperature ................98
Overheating.............................517
P
Panic mode ............................. 118
Parking brake Operation..............................167
Parking brake engaged warning buzzer.................................169
Warning light.........................484
Warning message.................169
Parking lights Light switch...........................173
Replacing light bulbs ............464
PCS (Pre-Collision System) Function................................189
Warning light.........................483