2020 TOYOTA MIRAI immobilizer

4478-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
8
When trouble arises
If the fuel cell system will not start
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly. (P. 449)
● There may not be sufficient f uel in the vehicle’s tank.
Refuel the vehicle.
● The fuel door may be open. ( P. 2 1 6 )
● There may be a mal function in the immobilizer system.
(  P. 78)
● There may be a malfunction i n the shift control system.
* ( P. 429)
● The fuel cell system may be malf unctioning due to an electrical
problem such as electronic key battery depletion or a blown fus e.
However, depending on the type of malfunction, an interim mea-
sure is available to star t the fuel cell system. (P. 191, 448)
● The electronic key may be in battery-saving mode. ( P. 145)
*: It may not be possible to shift the shift position from P to a nother position.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 452)
● The 12-volt battery terminal conn ections may be loose or corroded.
(  P. 374)
Reasons for the fuel cell system not starting vary depending on
the situation. Check the followi ng and perform the appropriate
procedure:
The fuel cell system will not start even though the correct sta rt-
ing procedure is being followed. ( P. 186)
The interior lights and headlights are dim, or the horn does no t
sound or sounds at a low volume.

519Alphabetical index
MIRAI_OM_USA_OM62073U
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”.

525Alphabetical index
MIRAI_OM_USA_OM62073U
Tail lights .................................. 201Light switch ........................... 201
Replacing light bulbs............. 405
Tailpipe ....................................... 95
Talk switch
*
Telephone switches*
Theft deterrent system Alarm ...................................... 81
Immobilizer system ................. 78
Tire inflation pressure ............. 393 Maintenance data ................. 471
Warning light ......................... 421
Tire information ....................... 472 Glossary................................ 478
Size ....................................... 474
Tire identification number ..... 473
Uniform Tire Quality
Grading............................... 476
Tire pressure warning system Function ................................ 379
Installing tire pressure
warning valves
and transmitters.................. 379
Registering ID codes ............ 379
Warning light ......................... 421 Tires .......................................... 378
Chains .................................. 302
Checking............................... 378
Emergency tire puncture repair kit ............................ 434
If you have a flat tire ............. 432
Inflation pressure .......... 393, 471
Information............................ 472
Replacing.............................. 386
Rotating tires ........................ 378
Size....................................... 471
Snow tires ............................. 301
Tire pressure warning system .......... ...................... 379
Warning light......................... 421
Tools ................................. 386, 434
Top tether strap ......................... 69
Total load capacity .................. 183
Towing Dinghy towing ....................... 185
Emergency towing ................ 411
Trailer towing ........................ 184
TRAC (Traction Control) ......... 295
Traction battery ......................... 91
Air intake vent ......................... 93
Charging ................................. 89
Location ............................ 86, 91
Warning message................. 426
Traction battery air intake vent........................................... 93
Traction Control (TRAC) ......... 295
T
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.