2023 TOYOTA MIRAI ECO mode

4848-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
1With the P shift position
selected, firmly depress the
brake pedal.
2 Touch the Toyota emblem
side of the electronic key to
the power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACC.
3Firmly depress the brake
pedal and check that is
shown on the multi-informa-
tion display.
4 Press the power switch.
In the event that the fuel cell
system still cannot be started,
contact your Toyota dealer.
■Stopping the fuel cell system
Set the parking brake, shift the shift
position to P and press the power
switch as you no rmally do when
stopping the fuel cell system.
■Electronic key battery
As the above proce dure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediatel y when the bat-
tery is depleted. ( P.436)
■Alarm (For Canada)
Using the mechanical key to lock
the doors will not set the alarm sys-
tem. If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered. ( P.71)
■Changing power switch modes
Release the brake pedal and press
the power switch in step 3 above.
The fuel cell system does not start
and modes will be changed each
time the switch is pressed. ( P.183)
Starting the fuel cell sys-
tem

4878-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
8
When trouble arises
■Starting the fuel cell system
when the 12-volt battery is dis-
charged
The fuel cell system cannot be
started by push-starting.
■To prevent 12-volt battery dis-
charge
●Turn off the headlights and the
audio system while the fuel cell
system is off.
●Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stor ed in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at you r Toyota dealer.
●Some systems may require initial-
ization. ( P.526)
●If the 12-volt battery discharges, it
may not be possible to shift the
shift position to other positions.
In this case, the vehicle cannot be
towed without lifting both rear
wheels because the rear wheels will
be locked.
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12-volt battery termi-
nals, contact your Toyota dealer.
■Charging the 1 2-volt battery
The electricity stor ed in the 12-volt
battery will discharge gradually even
when the vehicle is not in use, due
to natural discharge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the fuel cell system
may be unable to s tart. (The 12-volt battery recharges automatically
while the fuel cell
system is operat-
ing.)
■When recharging or replacing
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the 12-
volt battery is discharged. Use the
wireless remote c ontrol or the
mechanical key to lock or unlock
the doors.
●The fuel cell system may not start
on the first attempt after the 12-
volt battery has recharged but will
start normally after the second
attempt. This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the 12-
volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the
power switch was in before the
12-volt battery discharged, be
especially careful when recon-
necting the 12-volt battery.
●When the 12-volt battery is recon-
nected, start the fuel cell system,
depress the brake pedal, and con-
firm that it is possible to shift into
each shift position.
●If the battery is removed or the ter-
minals disconnected without oper-
ating the water release function
during cold weather, the vehicle
may not start due to the fuel cell
system being frozen. To prevent
this, operate th e water release
function before removing the bat-
tery or disconnecting the termi-
nals. ( P.196)

4979-1. Specifications
Owners Manual_USA_M62064_en
9
Vehicle specifications
This number is also on the Certi- fication Label.
*1: H2 quality standard:
EN 17124 (European stan dard for EU27 countries)
ISO 14687 Grade D (European standard)
SAE J2719 (US standard)
*2: This is the maximum possible f ill amount. The actual fuel amount
achieved at hydrogen st ations may be different due to station capacity or
station settings.
*3: For models of JPD20L-CEDSSA*5 and JPD20L-CEDHSA*5
*4
: For models of JPD20L-CEDBSA*5
*5
: The model code is indicated on the manufacturer’s plate or label.
(  P.496)
Fuel
Fuel typeCompressed hydrogen gas*1
Nominal working pressure10150 psi (70 MPa, 714 kgf/cm2, 700
bar)
Hydrogen tanks’ fuel capacity (Refer-
ence)
 37.5 gal. (142.2 L, 31.2 Imp.gal.)
(Approximately 12.6 lb. [5.7
kg.]
*2)*3
30.8 gal. (116.9 L, 25.7 Imp.gal.)
(Approximately 10.4 lb. [4.7
kg.]
*2)*4

5099-1. Specifications
Owners Manual_USA_M62064_en
9
Vehicle specifications
Intended outboard sidewall
(a) The sidewall that c ontains a whitewall,
bears white lettering , or bears manufac-
turer, brand, and/or model name molding
that is higher or deeper than the same
molding on the other s idewall of the tire, or
(b) The outward facing sidewall of an
asymmetrical tire that has a particular side
that must always face outward when
mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as
primarily intended for use on lightweight
trucks or multipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to
carry for a given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum
permissible inflation pressure for that tire
Maximum permissible inflation
pressureThe maximum cold inf lation pressure to
which a tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical
dimension requirements
Open splice
Any parting at any junction of tread, side-
wall, or innerliner that extends to cord
material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors
of the sidewalls of an inflated tire, including
elevations due to labeling, decorations, or
protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars,
multipurpose passenger vehicles, and
trucks, that have a gross vehicle weight
rating (GVWR) of 10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between
adjacent plies
Tire related termMeaning

5249-2. Customization
Owners Manual_USA_M62064_en
■Heated steering wheel* ( P.351)
*: If equipped
■Illumination ( P.355)
FunctionDefault settingCustomized
setting
Steering wheel heating pref-
erence in automatic modeStandard-2 (low) to 2 (high)O—O
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the front per-
sonal lights and interior lights
after the powe r switch is
turned off
OnOff——O
Operation of the front per-
sonal lights and interior lights
when the doors are unlocked
OnOff——O
Operation of the front per-
sonal lights and interior lights
when you appro ach the vehi-
cle with the electronic key on
your person
OnOff——O
Footwell lights*OnOff——O
Inside door handle lights*,
cup holder lights, interior
lights, door trim ornament
lights
* and instrument panel
ornament light
*
OnOff——O
Time elapsed before the
outer foot lights
* turn off15 seconds
Off
O—O7.5 seconds
30 seconds

Owners Manual_USA_M62064_en
543Alphabetical Index
Alphabetical Index
A
A/C ................................... 333, 340Air conditioning filter ............. 432
Automatic air conditioning sys-tem ............................. 333, 340
Eco air conditioning mode .. 334, 341
Front seat concentrated airflow mode (S-FLOW) ................. 345
ABS (Anti-lock Brake System) ............................................... 322Warning light ........................ 456
ACA (Active Cornering Assist) ............................................... 322
ACC ......................................... 183
Active Cornering Assist (ACA) ............................................... 322
Active Sound Control (ASC).. 196
AHB (Automatic High Beam) . 200
Air conditioning filter ............. 432
Air conditioning system 333, 340 Air conditioning filter ............. 432
Automatic air conditioning sys-tem ............................. 333, 340
Eco air conditioning mode .. 334, 341
Front seat concentrated airflow mode (S-FLOW) ................. 345
Air purification screen ........... 119
Airbags ...................................... 34 Airbag operating conditions.... 36
Airbag precautions for your child............................................. 39
Correct driving posture ........... 27
Curtain shield airbag operating conditions ............................. 37
Curtain shield airbag precautions ............................................. 39
Front passenger occupant clas- sification system ................... 46 General airbag precautions ....39
Locations of airbags ...............34
Modification and disposal of air-
bags......................................42
Side airbag operating conditions .............................................37
Side airbag precautions..........39
Side and curtain shield airbags operating conditions .............37
Side and curtain shield airbags precautions ...........................39
SRS airbags ...........................34
SRS warning light .................455
Alarm .........................................71 Warning buzzer ....................454
ALL AUTO control ..................332
Anchor brackets ... ..............54, 62
Antennas (smart key system)136
Anti-lock Brake System (ABS) ...............................................322Warning light.........................456
Approach warning ..................251
Armrest ......... ......................... ..371
ASC (Active Sound Control) ..196
Assist grips .............................371
Audio system-linked display . 111
Automatic air conditioning sys- tem .................................333, 340Eco air conditioning mode ..334, 341
Automatic air conditioning sys- tem (vehicles with 12.3-inch dis-
play) .......................................340
Automatic air conditioning sys- tem (vehicles with 8-inch dis-
play) .......................................333
Automatic headlight leveling system ...................................199
Automatic High Beam ............200
Automatic light control system ...............................................199

546Alphabetical Index
Owners Manual_USA_M62064_en
Driving ..................................... 169 Break-in tips ......................... 170
Correct driving posture ........... 27
Driving mode select switch... 320
Fuel cell electric vehicle driving tips........................................ 91
Procedures ........................... 169
Winter drive tips ................... 327
Driving information display ... 107
Driving position memory ....... 142 Memory recall function ......... 144
Power easy access system .. 142
Driving range .................... 99, 102
Driving support system informa- tion display ........................... 110
Dynamic radar cruise control with full-speed range ........... 244Approach warning ................ 251
Warning message ................ 254
E
ECB (Electronically Controlled Brake System) ...................... 322Warning light ........................ 454
ECO Accelerator Guidance ... 108
Eco score ................................ 108
EDR (Event data recorder)......... 8
Elapsed time ........................... 111
Electric motor (traction motor) ........................................... 76, 81Location.................................. 81
Specification ......................... 498
Electric Power Steering (EPS) ............................................... 322Warning light ........................ 456
Electronic key ......................... 124 Battery-saving function......... 137
If the electronic key does not operate properly ................. 482
Replacing the battery ........... 436
Electronic sunshade .............. 363 Operation ............................. 363 Electronically Controlled Brake
System (ECB) ........................322Warning light.........................454
Emergency flashers ...............446
Emergency shut off system.....89
Emergency tire puncture repair kit ...........................................467Storage location ...................469
Emergency, in case of If a warning buzzer sounds ..454
If a warning light turns on .....454
If a warning message is dis-played .................................464
If the 12-volt battery is dis- charged ..............................485
If the electronic key does not operate properly .................482
If the fuel cell system will not start ....................................480
If the fuel door cannot be opened ...........................................482
If the vehicle is submerged or water on the road is rising ..447
If you have a flat tire .............467
If you lose your keys.............481
If you think something is wrong ...........................................453
If your vehicle becomes stuck ...........................................494
If your vehicle has to be stopped in an emergency .................446
If your vehicle needs to be towed ...........................................449
If your vehicle ove rheats ......490
Energy monitor ....................... 119
EPS (Electric Po wer Steering)
...............................................322 Warning light.........................456
Event data recorder (EDR) .........8

554Alphabetical Index
Owners Manual_USA_M62064_en
Speedometer .................... 99, 102
Steering wheel Adjustment ........................... 147
Heated steering wheel ......... 351
Meter control switches ......... 106
Power easy access system .. 142
Steering wheel position memory........................................... 142
Stop lights Replacing light bulbs ............ 443
Storage features ..................... 358
Storage precautions .............. 358
Stuck If the vehicle becomes stuck 494
Suggestion function............... 112
Sun visors ............................... 379
Sunshade ................................ 363
Switch Rear automatic air conditioning system ........................ 348, 349
Switches Activating the Automatic High Beam .................................. 200
ASC switch ........................... 196
Automatic High Beam .......... 200
Brake Hold switch ................ 194
Display change button.. 100, 104
Door lock switches ............... 130
Driving mode select switch... 320
Driving position memory switches ............................. 142
Dynamic radar cruise control with full-speed range switch245
Electronic sunshade switch .. 363
Emergency flashers switch .. 446
Garage door opener switches ........................................... 382
H
2O switch ........................... 196
Heated steering wheel switch ........................................... 351
HUD (Head-up display) switch ........................................... 116 Light switches .......................198
LTA (Lane Tracing Assist) switch
...........................................236
Meter control switches..........106
Outside rear v iew mirror
switches..............................160
Parking brake switch ............191
Power door lock switch.........130
Power switch ........................180
Power window switches .......162
Rear sunshade switch ..........381
Rear window and outside rear view mirror defoggers switch...................................335, 342
Seat heater switches ............351
Seat ventilator switches........351
Snow mode switch ...............321
“SOS” button ..........................65
Tilt and telescopic steering con- trol switch ...........................147
Tire pressure warning reset switch .................................420
Trunk opener main switch ....135
Trunk opener switch .............133
Vehicle-to-vehicle distance switch .................................245
VSC OFF switch ...................323
Window lock switch ..............164
Windshield defogger switch 334, 342
Windshield wiper and washer switch .................................204
Windshield wiper de-icer switch ...................................337, 347
T
Tail lights Light switch...........................198
Replacing light bulbs ............443
Tailpipe ......................................84
The Secondary Collision Brake ...............................................323