2022 TOYOTA MIRAI fuse

4668-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
One of the following may be the
cause of the problem:
The electronic key may not be
functioning properly.
( P.468)
 There may not be sufficient
fuel in the vehicle’s tank.
Refuel the vehicle.
 The fuel door may be open.
( P.205)
 There may be a malfunction
in the immobilizer system.
( P. 6 9 )
 There may be a malfunction
in the shift control system.
*
( P.175, 453)
 There may be a malfunction
in the steering lock system.
 The fuel cell system may be
malfunctioning due to an elec-
trical problem such as elec- tronic key battery depletion or
a blown fuse. However,
depending on the type of mal-
function, an interim measure
is available to start the fuel
cell system. (
P.467)
 There is a possibility that the
temperature of the traction
battery is extremely low
(approximately below -22˚F [-
30˚C]). ( P.83, 172)
 It is possible the fuel cell sys-
tem is frozen. ( P.172)
*: It may not be possible to shift the
shift position from P.
One of the following may be the
cause of the problem:
 The 12-volt battery may be
discharged. ( P.471)
 The 12-volt battery terminal
connections may be loose or
corroded. ( P.400)
One of the following may be the
cause of the problem:
 One or both of the 12-volt bat-
tery terminals may be discon-
If the fuel cell system
will not start
Reasons for the fuel cell
system not starting vary
depending on the situation.
Check the following and
perform the appropriate
procedure:
The fuel cell system will
not start even though the
correct starting procedure
is being followed.
( P.172)
The interior lights and
headlights are dim, or the
horn does not sound or
sounds at a low volume.
The interior lights and
headlights do not turn on,
or the horn does not
sound.

4718-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
8
When trouble arises
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1 Confirm that the electronic
key is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the ala rm may activate and doors locked. (
P. 7 1 )
2 Open the hood. Remove the
fuse box cover. ( P.393)
Push the tabs in and lift the lid off.
3 Open the exclusive jump
starting terminal cover.
4 Connect a positive jumper cabl e clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
on the second vehicle and connect the clamp at the other end of
the negative cable to .
When connecting to an unpaint ed metallic point , make the connection
If the 12-volt batter y is
discharged
The following procedures
may be used to start the fuel
cell system if the 12-volt
battery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.
Restarting the fuel cell
system

4728-2. Steps to take in an emergency
Owners Manual_USA_M62084_enafter checking the surrounding a
rea. Also, do not make any connections
where parts nearby may interfere.
Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery term inal (second vehicle)
Solid, stationary, unpainted metallic point away from the exclu sive
jump starting terminal and any m oving parts as shown in the illus-
tration
5 Start the engine of the sec-
ond vehicle. Increase the
engine speed slightly and
maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery
of your vehicle.
6 Open and close any of the
doors of your vehicle with the
power switch off.
7 Maintain the engine speed of
the second vehicle and start
the fuel cell system of your
vehicle by turning the power
switch to ON.
8 Make sure the “READY” indi-
cator comes on. If the indica- tor does not come on, contact
your Toyota dealer.
9 Once the fuel cell system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10Close the exclusive jump starting terminal cover and
install the fuse box cover.
Once the fuel cell system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.

Owners Manual_USA_M62084_en
Alphabetical Index531
Front seats .............................. 135Adjustment ........................... 135
Cleaning ............................... 384
Correct driving posture ........... 27
Driving position memory....... 136
Head restraints ..................... 139
Memory recall function ......... 138
Power easy access system .. 136
Seat heaters ......................... 342
Seat position memory .......... 136
Seat ventilators .................... 342
Front side marker light Light switch .......................... 191
Replacing light bulbs ............ 429
Front turn signal lights .......... 182 Replacing light bulbs ............ 429
Turn signal lever ................... 182
Fuel .......................................... 203 Capacity ............................... 483
Fuel gauge ............................. 97
Refueling .............................. 203
Type ..................................... 483
Warning light ........................ 447
Fuel cell stack ..................... 74, 79 Fuel cell stack cover............. 396
Fuel cell stack coolant ........... 397 Checking .............................. 397
Preparing and c hecking before
winter.................................. 320
Fuel cell stack cover .............. 396
Fuel cell system ....................... 74 Acoustic vehicle alerting system............................................. 76
Emergency shut off system .... 87
High voltage components....... 79
If the fuel cell system will not
start .................................... 466
Overheating.......................... 477
Power switch ........................ 172
Precautions ............................ 79
Predictive efficient drive ......... 77
Starting the fuel cell system . 172 Water release .......................189
Fuel cell system indicator....102, 111
Fuel cell unit Compartment........................395
Fuel cell unit compartment cover...........................................396
Fuel cell unit compartment cover ...............................................396
Fuel cell vehicle ........................74 Charging the traction battery ..76
Driving tips..............................89
Handling hydrogen gas ..........84
Hydrogen gas .........................83
Hydrogen-related components79
Maintenance, repair, recycling, and disposal .........................75
Power output restriction ..........82
Power switch ........................172
Regenerative braking .............76
Road accident cautions ..........86
Running out of fuel .................81
Service plugs ..........................85
Sounds and vibrations ............75
Starting the system ...............172
Traction battery air intake vents .............................................88
Fuel cell vehicle driving tips....89
Fuel consumption Average fuel economy ..........101
Current fuel economy ...........101
Fuel door .................................203 Refueling ..............................203
When the fuel door cannot be opened ...............................468
Fuel economy .........................101
Fuel gauge.................................97
Fuses .......................................425
G
Garage door opene r ...............371
Gauges ......................................97

536Alphabetical Index
Owners Manual_USA_M62084_en
Rear sunshades ..................... 370
Rear turn signal lights ........... 182 Replacing light bulbs ............ 429
Turn signal lever ................... 182
Rear view mirror Digital Rearview Mirror ......... 144
Inside rear view mirror.......... 143
Outside rear view mirrors ..... 154
Rear window defogger ... 327, 334
Refueling ................................. 203 Capacity ............................... 483
Fuel types............................. 483
When the fuel door cannot be opened ............................... 468
Regenerative braking ............... 76 Warning lights....................... 441
Replacing Electronic key battery ........... 423
Fuses ................................... 425
Light bulbs ............................ 429
Tires ..................................... 411
Road accident cautions ........... 86
Road Sign Assist .................... 234
Roof film .................................. 381
RSA (Road Sign Assist) ......... 234
Running out of fuel .................. 81
S
Safety Connect ......................... 65
Seat belt reminder light ......... 448
Seat belts .................................. 29 Automatic Locking Retractor .. 31
Child restraint system installation............................................. 54
Cleaning and maintaining the seat belt.............................. 384
Emergency Locking Retractor 31
How to wear your seat belt..... 30
How your child should wear the seat belt................................ 30
Pregnant women, proper seat belt use................................. 29 Reminder light and buzzer ...448
Seat belt extender ..................30
Seat belt pretensioners ..........32
SRS warning light .................442
Seat heaters ............................342
Seat position memory ............136
Seat ventilators .. .....................342
Seating capacity .............170, 482
Seats ........................................135 Adjustment ...........................135
Adjustment precautions ........135
Child seats/child restraint system installation ............................52
Cleaning ...............................384
Driving position memory .......136
Head restraints .....................139
Power easy access system ..136
Properly sitting in the seat ......27
Seat heaters ....... ..................342
Seat position memory...........136
Seat ventilators.....................342
Self-restoring coat ..................380
Sensor Automatic headlight system .192
Automatic High Beam system...........................................193
BSM (Blind Spot M onitor) .....250
Dynamic radar cruise control with full-speed range ..........207
Inside rear view mirror ..........144
Intuitive parking assist ..........254
LTA (Lane Tracing Assist) .....223
Parking Support Brake function (rear-crossing vehicles) ......250
Parking Support Brake function (static objects) ....................254
PCS (Pre-Collisio n System) .207
Radar sensor ........................207
Rain-sensing windshield wipers ...........................................199
RCTA (Rear Cross Traffic Alert) ...........................................250