battery location TOYOTA MIRAI 2018 Owners Manual (in English)

1284-2. Opening, closing and locking the doors
MIRAI_OM_USA_OM62025U
■Tr u n k l i g h t
The trunk light turns on when the trunk is opened.
■ Function to prevent th e trunk being locked with the electronic key inside
● When all doors are locked, closing the trunk lid with the elect ronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened by pressing the trunk release but-
ton on the trunk lid.
● If the spare electronic key is put in the trunk with all the doors locked, the
key confinement prevention function is activated so the trunk c an be
opened. In order to prevent theft, take all electronic keys wit h you when
leaving the vehicle.
● If the electronic key is put in the trunk with all the doors lo cked, the key may
not be detected depending on the location of the key and the su rrounding
radio wave conditions. In this case, the key confinement preven tion function
cannot be activated, causing the doors to lock when the trunk i s closed.
Make sure to check where the key is before closing the trunk.
● The key confinement prevention function cannot be activated if any one of
the doors is unlocked. In this case, open the trunk using the t runk opener
switch.
■ Internal trunk release lever
■ Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 398)
■ If the smart key system or the wireless remote control does not operate
properly
Use the mechanical key to unlock the trunk. ( P. 398)
Replace the key battery with a new one if it is depleted. ( P. 353)
■ When leaving a key to the vehicle with a parking attendant
P. 117
■ Customization
The trunk unlocking operation can be changed.
(Customizable features: P. 437)
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the
inside of the trunk lid upward.
The lever will continue to glow for some
time after the trunk lid is closed.

1354-2. Opening, closing and locking the doors
4
Operation of each component
MIRAI_OM_USA_OM62025U■
Note for the entry function
●Even when the electronic key is within the effective range (det ection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unl ocked.
• The electronic key is near the ground or in a high place, or t oo close to
the rear bumper center when the trunk is opened.
• The electronic key is on the instrument panel, rear package tr ay or floor,
or in the door pockets or glove box when the fuel cell system i s started or
power switch modes are changed.
● Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio w ave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
● As long as the electronic key is within the effective range, th e doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
● Even if the electronic key is not inside the vehicle, it may be possible to start
the fuel cell system if the electronic key is near the window.
● The doors may unlock or lock if a large amount of water splashe s on the
door handle, such as in the rain or in a car wash when the elec tronic key is
within the effective range. (The doors will automatically be lo cked after
approximately 60 seconds if the doors are not opened and closed.)
● If the wireless remote control is used to lock the doors when t he electronic
key is near the vehicle, there is a possibility that the door m ay not be
unlocked by the entry function. (Use the wireless remote contro l to unlock
the doors.)
● Touching the door lock or unlock sensor while wearing gloves ma y prevent
lock or unlock operation.
● When the lock operation is performed using the lock sensor, rec ognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
● If the door handle becomes wet while the electronic key is with in the effec-
tive range, the door may lock and unlock repeatedly. In this ca se, follow the
following correction procedures to wash the vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more awa y from the
vehicle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the s mart key
system. ( P. 133)
● If the electronic key is inside the vehicle and a door handle b ecomes wet
during a car wash, a message may be shown on the multi-informat ion dis-
play and a buzzer will sound outside the vehicle. To turn off t he alarm, lock
all the doors.

3287-3. Do-it-yourself maintenance
MIRAI_OM_USA_OM62025U
12-volt batter y
The 12-volt battery is located in
the right-hand side of the trunk.
Remove the 12-volt battery cover.
Make sure that the 12-volt battery terminals are not corroded a nd that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
Location
Removing the 12-volt battery cover
Exterior

450Alphabetical index
MIRAI_OM_USA_OM62025U
Back-up lightsReplacing light bulb .............. 358
Battery (12-volt battery) .......... 328 Battery checking ................... 328
If the 12-volt battery is discharged .......................... 401
Preparing and checking before winter....................... 252
Warning message ................. 376
Battery (traction battery)..... 78, 83 Air intake vent ......................... 85
Charging ................................. 81
Location ............................ 78, 83
Warning message ................. 376
Blind Spot Monitor (BSM) ....... 244 Blind Spot Monitor function ... 246
Rear Crossing Traffic Alert function ............................... 250
Bluetooth
®*
Audio system*
Hands-free system (for cellular phone)
*
Navigation system*
Bottle holders .......................... 274
Brake Fluid ...................................... 420
Parking brake........................ 186
Regenerative braking.............. 81
Warning light ......................... 369
Brake assist ............................. 231
Break-in tips ............................ 160
Brightness control Instrument panel light
control................................. 104
BSM (Blind Spot Monitor) ....... 244 Blind Spot Monitor function ... 246
Rear Cross Traffic Alert
function ............................... 249 Care .................................. 306, 310
Aluminum wheels ................. 307
Exterior ................................. 306
Interior .................................. 310
Seat belts.............................. 311
Cargo capacity......................... 169
CD player
*
Chains ...................................... 253
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................. 330, 405
Airbag precautions.................. 39
Child restraint system ............. 56
How your child should wear the seat belt.......................... 32
Power window lock switch .... 154
Power window precautions ... 156
Rear door child-protectors .... 123
Removed electronic key battery precautions............. 354
Seat belt extender precautions........................... 35
Seat belt precautions .............. 34
Seat heater precautions ....... 265
Trunk precautions ................. 129
BC

452Alphabetical index
MIRAI_OM_USA_OM62025U
DrivingBreak-in tips .......................... 160
Correct driving posture ........... 28
Driving advice ......................... 94
Fuel cell vehicle driving
tips ........................................ 94
Procedures ........................... 158
Winter drive tips .................... 252
Driving position memory ........ 140 Memory recall function.......... 142
Dynamic radar cruise
control .................................... 203
ECB (Electronically Controlled Brake System) ...................... 231
Eco drive mode ........................ 181
EDR (Event data recorder) .......... 9
Electric motor (traction motor) Location ............................ 78, 83
Specification ......................... 418
Electric Power Steering (EPS)....................................... 232
Function ................................ 232
Warning light ......................... 370
Electronic key Battery-saving function ......... 133
If the electronic key does not
operate properly ................. 398
Replacing the battery ............ 353
Electronically Controlled Brake System (ECB) ............. 231
Emergency flashers ................ 360 Emergency, in case of
If a warning buzzer sounds... 369
If a warning light turns on ..... 369
If a warning message is displayed ............................ 376
If the 12-volt battery is discharged.......................... 401
If the electronic key does not
operate properly ................. 398
If the fuel cell system will not start ........................ 396
If you have a flat tire ............. 381
If you lose your keys ..... 117, 119
If you think something is wrong ................................. 368
If your vehicle becomes stuck ................................... 412
If your vehicle has to be stopped in an emergency ... 361
If your vehicle needs to be
towed.................................. 362
If your vehicle overheats....... 406
Emergency shut off system ..... 84
Emergency tire puncture
repair kit ................................. 381
Energy monitor ........................ 108
Enhanced VSC ......................... 231
EPS (Electric Power Steering) ..... 232 Function ................................ 232
Warning light......................... 370
Event data recorder (EDR).......... 9
E

454Alphabetical index
MIRAI_OM_USA_OM62025U
Opening the fuel door ........... 198
Overheating .......................... 406
Power output restriction .......... 88
Power switch......................... 172
Precautions ............................. 82
Regenerative braking.............. 81
Road accident cautions .......... 92
Running out of fuel.................. 85
Service plugs .......................... 91
Sounds and vibrations ............ 80
Starting the system............... 172
Traction battery air intake vent....................................... 85
Vehicle proximity notification
system ......... ......................... 84
Warning message ................. 376
Water release ....................... 173
Fuel consumption............ 111, 112
Fuel door .................................. 198 Refueling............................... 198
Fuses ........................................ 355
Garage door opener ................ 292
Gauges ..................................... 102
Glove box ................................. 271
Grocery bag hooks .................. 275 H
2O switch ............................... 173
Hands-free system
(for cellular phone)
*
Head restraints ........................ 145
Headlights ................................ 187 Automatic High Beam system .......... ...................... 190
Light switch ........................... 187
Replacing light bulbs ............ 358
Heated steering wheel ............ 265
Heaters Automatic air conditioning system .......... ...................... 256
Heated steering wheel .......... 265
Outside rear view mirrors ..... 259
Seat heaters ......................... 266
High mounted stoplight
Replacing light bulbs ............ 358
High-voltage components ........ 83
Hill-start assist control ........... 231
Hood ......................................... 320 Warning message................. 376
Hooks
Coat hooks ........................... 279
Grocery bag hooks ............... 275
Retaining hooks (floor mat) .... 26
Horn .......................................... 147
Hydrogen detectors .................. 87
Hydrogen-related components............................. 82
Hydrogen tanks ......................... 86 Capacity................................ 418
Location ............................ 78, 82
G
H

461Alphabetical index
MIRAI_OM_USA_OM62025U
Tire pressure warning systemFunction ................................ 333
Installing tire pressure
warning valves
and transmitters.................. 333
Registering ID codes ............ 333
Warning light ......................... 371
Tires .......................................... 332
Chains................................... 253
Checking ............................... 332
Emergency tire puncture repair kit............................. 383
If you have a flat tire ............. 381
Inflation pressure .......... 346, 421
Information ............................ 422
Replacing .............................. 339
Rotating tires......................... 332
Size ....................................... 421
Snow tires ............................. 252
Tire pressure warning system ......... ....................... 333
Warning light ......................... 371
Tools ................................. 339, 383
Top tether strap ......................... 69
Total load capacity .................. 169
Towing Dinghy towing ....................... 171
Emergency towing ................ 362
Trailer towing ........................ 170 TRAC (Traction Control) ......... 231
Traction battery ......................... 83
Air intake vent ......................... 85
Charging ................................. 81
Location ............................ 78, 83
Warning message................. 376
Traction battery air intake vent........................................... 85
Traction Control (TRAC) ......... 231
Traction motor (electric motor) Location ............................ 78, 83
Specification ......................... 418
Trailer towing .......................... 170
Transmission ........................... 179
Trip meters ............................... 102
Trunk ........................................ 126 Grocery bag hooks ............... 275
Internal trunk release lever ... 128
Luggage security system ...... 127
Smart key system ................. 126
Trunk features ...................... 275
Trunk grip ............................. 127
Trunk light ............................. 128
Trunk opener main switch .... 127
Trunk opener switch ............. 126
Wireless remote control ........ 126
Trunk light
Trunk light ............................. 128
Wattage ................................ 421
Turn signal lights .................... 185
Replacing light bulbs ............ 358
Turn signal lever ................... 185
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.