TOYOTA MIRAI 2019 Owners Manual (in English)

511What to do if... (Troubleshooting)
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
●Did you press the power switch while firmly depressing the brake pedal?
( P. 186)
●Is the shift position in P? ( P. 194)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 144)
●Is the electronic key battery weak or depleted?
In this case, the fuel cell system can be started in a temporary way.
( P. 450)
●Is the 12-volt battery discharged? ( P. 452)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 167)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the fuel cell system is not operating) for a p eriod of
time. ( P. 188)
If you think something is wrong
The fuel cell syst em does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

512What to do if... (Troubleshooting)
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 421)
●The brake system warning light is on
Is the parking brake released? ( P. 200)
Depending on the situation, other types of warning buzzer may also sound.
( P. 418, 426)
●Did anyone inside the vehicle open a door during setting the al arm?
The sensor detects it and the alarm sounds. ( P. 81)
To stop the alarm, turn the power switch to ON mode or start the fuel cell sys-
tem.
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 426)
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 418, 426.
●Stop the vehicle in a safe place and replace the flat tire with the spare
tire. ( P. 432)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 463)
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
An alarm is activated and the horn sounds
A warning light turns on or a warning message or indicator
is displayed
When a problem has occurred If you have a flat tire
The vehicle becomes stuck

513Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Alphabetical index
A/C ............................................ 306Air conditioning filter ............. 398
Automatic air conditioning
system ......... ....................... 306
ABS
(Anti-lock Brake System)...... 295
Function ................................ 295
Warning light ......................... 419
Air conditioning filter .............. 398
Air conditioning system .................................... 306
Air conditioning filter ............. 398
Airbags ....................................... 36 Airbag operating conditions .... 44
Airbag preca utions for
your child .............................. 39
Airbag warning light .............. 419
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 45
Curtain shield airbag precautions ........................... 42
Front passenger occupant
classification syst em............. 49
General airbag precautions .... 39
Locations of airbags................ 36
Modification and disposal of airbags ............... 43
Seat cushion airbag ................ 36
Side airbag operating conditions ............................. 45
Side airbag precautions .......... 41
Side and curtain shield airbags operating conditions ............. 45
Side and curtain shield airbags precautions ........................... 42
SRS airbags............................ 36 Alarm .......................................... 81
Anchor brackets ........................ 69
Antennas
(smart key system) ............... 143
Anti-lock Brake System
(ABS) ...................................... 295 Function ................................ 295
Warning light......................... 419
Armrest..................................... 329
Assist grips .............................. 330
Audio input
*
Audio system*
Steering wheel audio switch*
Automatic air conditioning system.................................... 306 Air conditioning filter ............. 398
Automatic headli ght leveling
system.................................... 204
Automatic High Beam ............. 205
Automatic light control system.................................... 201
AUX port
*
Auxiliary box ............................ 324
A
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

514Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Back-up lightsReplacing light bulb .............. 405
Battery (12-volt battery) .......... 374 Battery checking ................... 374
If the 12-volt battery is discharged .......................... 452
Preparing and checking before winter....................... 301
Warning message ................. 426
Battery (traction battery)..... 86, 91 Air intake vent ......................... 93
Charging ................................. 89
Location ............................ 86, 91
Warning message ................. 426
Blind Spot Monitor (BSM) ....... 300 Blind Spot Monitor function ... 289
Rear Crossing Traffic Alert function ............................... 292
Bluetooth
®*
Audio system*
Hands-free system (for cellular phone)
*
Navigation system*
Bottle holders .......................... 324
Brake Fluid ...................................... 470
Parking brake........................ 200
Regenerative braking.............. 89
Warning light ......................... 418
Brake assist ............................. 295
Break-in tips ............................ 174
Brightness control Instrument panel light
control................................. 113
BSM (Blind Spot Monitor) ....... 300 Blind Spot Monitor function ... 289
Rear Cross Traffic Alert
function ............................... 292 Care .................................. 352, 356
Aluminum wheels ................. 353
Exterior ................................. 352
Interior .................................. 356
Seat belts.............................. 357
Cargo capacity......................... 183
CD player
*
Chains ...................................... 302
Child restraint system............... 56 Booster seats installation........ 64
Convertible seats installation ............................ 63
Front passenger occupant classification syst em ............ 49
Infant seats definition.............. 58
Infant seats installation ........... 62
Installing a CRS to the passenger seat..................... 59
Installing CRS with LATCH anchors ................................ 67
Installing CRS with seat belts...................................... 62
Installing CRS with top tether
strap ..................................... 69
Child safety ................................ 55 12-volt battery precautions................. 376, 456
Airbag precautions.................. 39
Child restraint system ............. 56
How your child should wear the seat belt.......................... 32
Power window lock switch .... 167
Power window precautions ... 169
Rear door child-protectors .... 135
Removed electronic key battery precautions............. 401
Seat belt extender precautions........................... 35
Seat belt precautions .............. 34
Seat heater precautions ....... 315
Trunk precautions ................. 141
BC

515Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Child-protectors....................... 135
Cleaning ........................... 352, 356Aluminum wheels.................. 353
Exterior ................................. 352
Interior................................... 356
Seat belts .............................. 357
Clock ......................................... 328
Coat hooks ............................... 329
Condenser ................................ 371
Console box ............................. 321
Coolant Capacity ................................ 469
Checking ............................... 370
Preparing and checking Warning light ...................... 418
Cooling system ........................ 370 Fuel cell system
overheating......................... 457
Cruise control Dynamic radar cruise
control................................. 253
Cup holders.............................. 322
Curtain shield airbags ............... 37
Customizable features ............ 484 Daytime running light
system.................................... 203
Defogger Outside rear view mirrors ..... 309
Rear window ......................... 309
Windshield ............................ 309
Dimensions .............................. 466
Dinghy towing.......................... 185
Display Drive information .................. 118
Dynamic radar cruise control ................................ 253
Energy monitor ..................... 118
LDA (Lane Departure Alert
with steering control) .......... 238
Multi-information display ....... 117
Parking Support
Brake function
(for static objects) .............. 279
Warning message ................ 426
Do-it-yourself maintenance .... 364
Door courtesy lights Location ................................ 317
Wattage ................................ 471
Door lock Doors .................................... 132
Key ....................................... 449
Smart key system ................. 132
Wireless remote control ........ 132D
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

516Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
DoorsAutomatic door locking
and unlocking systems ....... 135
Door glasses ......................... 167
Door lock............................... 134
Door windows ....................... 167
Open door warning buzzer ... 136
Open door warning light........ 420
Outside rear view mirrors...... 164
Rear door child-protector ...... 135
Drive information ..................... 118
Driver’s seat belt reminder
light......................................... 421
Driver’s seat position
memory .................................. 153
Driving Break-in tips .......................... 174
Correct driving posture ........... 28
Driving advice ....................... 102
Fuel cell vehicle driving
tips ...................................... 102
Procedures ........................... 172
Winter drive tips .................... 301
Driving position memory ........ 153 Memory recall function.......... 155
Dynamic radar cruise control .................................... 253 ECB (Electronically Controlled
Brake System) ...................... 295
Eco drive mode........................ 195
EDR (Event data recorder).......... 9
Electric motor (traction motor) Location ............................ 86, 91
Specification ......................... 468
Electric Power Steering
(EPS) ...................................... 296 Function ................................ 296
Warning light......................... 419
Electronic key Battery-saving function ......... 145
If the electronic key does not operate properly ................. 449
Replacing the battery............ 400
Electronically Controlled
Brake System (ECB) ............. 295
Emergency flashers ................ 408E

517Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Emergency, in case ofIf a warning buzzer sounds ... 418
If a warning light turns on...... 418
If a warning message is displayed ............................ 426
If the 12-volt battery is discharged .......................... 452
If the electronic key does not
operate properly ................. 449
If the fuel cell system will not start ........................ 447
If the vehicle is trapped in rising water ..................... 410
If you have a flat tire ............. 432
If you lose your keys ..... 129, 131
If you think something is wrong.................................. 417
If your vehicle becomes stuck ................................... 463
If your vehicle has to be
stopped in an emergency ... 409
If your vehicle needs to be towed .................................. 411
If your vehicle overheats ....... 457
Emergency shut off system...... 92
Emergency tire puncture repair kit ................................. 432
Energy monitor ........................ 118
Enhanced VSC ......................... 295
EPS (Electric Power Steering)...... 296 Function ................................ 296
Warning light ......................... 419
Event data recorder (EDR) .......... 9 Flat tire ..................................... 432
Floor mats .................................. 26
Fluid
Brake .................................... 470
Transmission ........................ 470
Washer ................................. 373
Front interior lights ................. 318 Wattage ................................ 471
Front passenger occupant classification system .............. 49
Front seats ............................... 151
Adjustment............................ 151
Cleaning ............................... 356
Correct driving posture ........... 28
Driving position memory ....... 153
Head restraints ..................... 158
Power easy access system .......... ...................... 153
Seat heaters ......................... 316
Seat position memory ........... 153
Front side marker lights ......... 201 Light switch ........................... 201
Replacing light bulbs ............ 405
Front turn signal lights ........... 199 Replacing light bulbs ............ 405
Turn signal lever ................... 199
Fuel
Capacity................................ 468
Fuel gauge............................ 111
Hydrogen station information ......................... 528
Refueling .............................. 213
Type.............................. 213, 468
Warning light......................... 420F

518Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Fuel cell stack ............................ 94
Fuel cell stack coolantCapacity ................................ 469
Checking ............................... 370
Fuel cell system
Characteristics ........................ 86
Cold temperatures ................ 189
Coolant type.......................... 469
Indicators .............................. 109
Multi-information display ....... 117
Precautions ............................. 90
Starting the system ............... 186
Stopping the system ............. 187
Warning lights ....................... 107
Fuel cell system indicator....... 120
Fuel cell vehicles Characteristics ........................ 86
Charging the traction
battery .................................. 89
Driving advice ....................... 102
Emergency shut off system .... 92
Emergency start function ...... 448
Emergency stops .................. 409
Fuel ....................................... 468
Handling hydrogen gas ........... 98
High-voltage components ....... 91
Hydrogen gas ......................... 97
Hydrogen-related
components .......................... 90
If the 12-volt battery is
discharged .......................... 452
If the fuel cell system will not start ........................ 447
Maintenance, repair, recycling, and disposal ......... 89 Opening the fuel door ........... 213
Overheating .......................... 457
Power output restriction .......... 96
Power switch ........................ 186
Precautions............................. 90
Regenerative braking ............. 89
Road accident cautions ........ 100
Running out of fuel ................. 93
Service plugs .......................... 99
Sounds and vibrations ............ 88
Starting the system ............... 186
Traction battery air intake
vent ...................................... 93
Vehicle proximity notification
system .......... ..................... ... 92
Warning message................. 426
Water release ....................... 187
Fuel consumption ........... 121, 122
Fuel door .................................. 213 Refueling .............................. 213
Fuses ........................................ 402
Garage door opener ................ 343
Gauges ..................................... 111
Glove box ................................. 321
Grocery bag hooks.................. 325
G

519Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
H2O switch ............................... 187
Hands-free system
(for cellular phone)
*
Head restraints ........................ 158
Headlights ................................ 201 Automatic High Beam system ......... ....................... 205
Light switch ........................... 201
Replacing light bulbs............. 405
Heated steering wheel............. 315
Heaters Automatic air conditioning system ......... ....................... 306
Heated steering wheel .......... 315
Outside rear view mirrors...... 309
Seat heaters ......................... 316
High mounted stoplight
Replacing light bulbs............. 405
High-voltage components ........ 91
Hill-start assist control............ 295
Hood ......................................... 366 Warning message ................. 426
Hooks
Coat hooks............................ 329
Grocery bag hooks ............... 325
Retaining hooks (floor mat)..... 26
Horn .......................................... 160
Hydrogen detectors................... 95
Hydrogen-related components ............................. 90
Hydrogen tanks ......................... 94 Capacity ................................ 468
Location ............................ 86, 90 Identification
Vehicle .................................. 467
Illuminated entry system ........ 319
Immobilizer system ................... 78
Indicators ................................. 109
Initialization Ion filter ................................. 490
Parking Support Brake function
(for static objects) ............... 283
Power windows..................... 168
Inside rear view mirror ............ 162
Instrument panel light control .................................... 113
Interior lights ........................... 317 Switch ................................... 318
Wattage ................................ 471
Intuitive parking assist ........... 265
Inverter coolant Capacity................................ 469
Checking............................... 370
Ion filter ...................................... 95
Jack Positioning a floor jack.......... 367
Vehicle-equipped jack ............................. 386, 434
Jack handle ...................... 386, 434
Jam protection function Power window ...................... 168
HI
J
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

520Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Keyless entrySmart key system ......... 132, 138
Wireless remote
control......................... 132, 138
Keys .......................................... 128
Battery-saving function ......... 145
Electronic key ....................... 128
If the electronic key does not operate properly ................. 449
If you lose your keys ..... 129, 131
Key number plate.................. 128
Keyless entry ................ 132, 138
Mechanical key ..................... 129
Power switch......................... 186
Replacing the battery ............ 400
Warning buzzer..................... 144
Wireless remote control ........ 128
Knee airbags .............................. 36 Lane Departure Alert (LDA) .... 238
LATCH anchors ......................... 67
LDA (Lane Departure Alert
with steering control) ........... 238
Lever
Auxiliary catch lever.............. 366
Hood lock release lever ........ 366
Internal trunk release lever ... 140
Shift lever.............................. 193
Turn signal lever ................... 199
Wiper lever ........................... 210
License plate lights ................. 201 Light switch ........................... 201
Replacing light bulbs ............ 405
Light bulbs Replacing.............................. 405
Lights
Automatic High Beam system .......... ...................... 205
Headlight switch ................... 201
Illuminated entry system ....... 319
Interior lights ......................... 318
Interior lights list.................... 317
Personal lights ...................... 318
Replacing light bulbs ............ 405
Trunk light ............................. 140
Turn signal lever ................... 199
Vanity lights .......................... 327
Wattage ................................ 471
Load capacity .......................... 183
KL