TOYOTA MIRAI 2023 Owners Manual

1815-2. Driving procedures
Owners Manual_USA_M62064_en
5
Driving
Shutdown Due to Freezing Stop in
a Safe Place See Owner’s Man-
ual” may be displayed in the multi-
information display.
The fuel cell system is frozen and
cannot be started. Contact your Toy-
ota dealer.
●The power output will be tempo-
rarily limited until the fuel cell sys-
tem reaches full operating
temperature.
●When the traction battery is
extremely cold (below approxi-
mately -22˚F [-3 0˚C]) under the
influence of outsi de temperature,
it may not be poss ible to start the
fuel cell system. In this case, try to
start the fuel ce ll system again
after the temperat ure of the trac-
tion battery increases due to the
outside temperature increase etc.
■If the fuel cell system does not
start
●The immobilizer system may not
have been deactivated. ( P. 7 0 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
●Check that the fuel door is closed.
When the fuel doo r is open, the
fuel cell system cannot be started.
Close the fuel door before starting
the system. ( P.212)
■Sounds and vibrations specific
to a fuel cell electric vehicle
 P. 7 7
■If the 12-volt battery is dis-
charged
The fuel cell system cannot be
started using the smart key system.
Refer to P.485to res tart the fuel cell
system.
■Electronic key battery depletion
 P. 1 2 4
■Conditions affecting operation
 P.138
■Notes for the entry function
 P.138
■If “Smart Key System Malfunc-
tion See Owner’s Manual” is
displayed on the multi-informa-
tion display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer immediately.
■If the “READY” indicator does
not come on
In the event that the “READY” indi-
cator does not come on even after
performing the proper procedures
for starting the vehicle, contact your
Toyota dealer immediately.
■If the fuel cell system is mal-
functioning
 P.464
■Electronic key battery
 P.436
■Operation of the power switch
●If the switch is not pressed shortly
and firmly, the power switch mode
may not change or the fuel cell
system may not start.
●If attempting to restart the fuel cell
system immediately after turning
the power switch off, the fuel cell
system may not start in some
cases. After turning the power
switch off, please wait a few sec-
onds before restarting the fuel cell
system.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.482.

1825-2. Driving procedures
Owners Manual_USA_M62064_en
1Stop the vehicle completely.
2 Set the parking brake.
( P.191)
3 Press the P position switch.
( P.185)
Check that the shift position indica-
tor shows P and the parking brake
indicator is illuminated.
4Press the power switch.
The fuel cell system will stop, and
the meter displa y will be extin-
guished (the shift position indicator will be extinguished
a few seconds
after the meter display).
5 Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the meter.
■Stopping the fuel cell system in
cold temperatures
●When the power switch is pressed
and the fuel cell system is stopped
during cold temperatures, the time
for water purge from the tailpipe
may be longer than usual to pre-
vent liquid in the fuel cell stack
from freezing.
●If the “FCV System Purge in Prog-
ress Purge will St op Automati-
cally” is displayed in the multi-
information display, however it is
no problem to exit the vehicle.
●The water purge time may also be
long if the system is stopped
before fuel cell system warm-up is
completed.
●It is normal to hear hissing and
other sounds during purge.
(  P. 7 7 )
●It is not a problem to do refueling
operations while the system is
purging.
The purging process is carried out
automatically afte r several min-
utes and a white mist may be
emitted, however this is not a mal-
function.
■Parking the vehic le during cold
weather
●Water may automatically purge
from the tailpipe, even when the
fuel cell system is off, in order to
prevent liquid in the fuel cell stack,
hydrogen pipelines, etc., from
freezing. Also, water vapor may
be purged, but this is not malfunc-
tion.
●It is normal to hear hissing and
other sounds during purge.
WARNING
■When starting the fuel cell
system
Always start the fuel cell system
while sitting in the driver’s seat.
Do not depress the accelerator
pedal while starting the fuel cell
system under any circumstances.
Doing so may cause an accident
resulting in death or serious injury.
NOTICE
■When starting the fuel cell
system
If the fuel cell system becomes
difficult to start, have your vehicle
checked by your Toyota dealer
immediately.
■Symptoms indicating a mal-
function with the power
switch
If the power switch seems to be
operating somewh at differently
than usual, such as the switch
sticking slightly, there may be a
malfunction. Contact your Toyota
dealer immediately.
Stopping the fuel cell sys-
tem

1835-2. Driving procedures
Owners Manual_USA_M62064_en
5
Driving
(  P. 7 7 )
■Automatic fuel cell system shut
off feature
●The vehicle is equipped with a
feature that automatically shuts off
the fuel cell system when the shift
position is in P with the fuel cell
system operating for an extended
period.
●The fuel cell system will automati-
cally shut off after approximately 1
hour if it has been left running
while the shift position is in P.
●The timer for the automatic fuel
cell system shut off feature will
reset if the brake pedal is
depressed or if the shift position is
in a position other than P.
●After the vehicle is parked, if the
door is locked with the door lock
switch ( P.130) from the inside or
the mechanical key from the out-
side, the automat ic fuel cell sys-
tem shut off feature will be
disabled. The tim er for the auto-
matic fuel cell system shut off fea-
ture will be re- enabled if the
driver’s door is opened.
■When the shift c ontrol system
malfunctions
When attempting to turn the power
switch off while there is a malfunc-
tion in the shift control system, the
power switch mode may change to
ACC. In this cas e, ACC may be
turned off by applying the parking
brake and pressing the power
switch again.
If there is a malfunction in the sys-
tem, have the vehicle inspected by
your Toyota dealer immediately.
■Automatic P position selection
function
 P. 1 8 7
■Water release (H2O switch)
 P. 1 9 6
Modes can be changed by
pressing the power switch with
the brake pedal released. (The
mode changes each time the
switch is pressed.)
WARNING
■Stopping the fuel cell system
in an emergency
●If you want to stop the fuel cell
system in an emergency while
driving the vehicle, press and
hold the power s witch for more
than 2 seconds, or press it
briefly 3 times or more in suc-
cession. ( P.446)
However, do not touch the
power switch while driving
except in an emergency. Turn-
ing the fuel cell system off while
driving will not cause loss of
steering or braking control, how-
ever, power assist to the steer-
ing will be lost. This will make it
more difficult to steer smoothly,
so you should pull over and stop
the vehicle as soon as it is safe
to do so.
●If the power switch is operated
while the vehicle is running, a
warning message will be shown
on the multi-information display
and a buzzer sounds.
●When restarting the fuel cell
system after an emergency
shutdown, press the power
switch.
Changing power switch
modes

1845-2. Driving procedures
Owners Manual_USA_M62064_en
“ACCESSORY”
“IGNITION ON”
1 OFF
The emergency flashers can be
used.
2ACC
Some electrical components such
as the audio system can be used.
“ACCESSORY” will be displayed
on the meter.
3ON
All electrical com ponents can be
used.
“IGNITION ON” will be displayed on
the meter.
■Auto power off function
If the vehicle is le ft in ACC for more
than 20 minutes or ON (with fuel cell
system not operating) for more than
an hour with the shif t position in P,
the power switch will automatically
turn off. However, this function can-
not entirely prevent the 12-volt bat-
tery discharge. Do not leave the
vehicle with the power switch in
ACC or ON for long periods of time
when the fuel cell system is not
operating.
NOTICE
■To prevent 12-volt battery dis-
charge
●Do not leave the power switch
in ACC or ON for long periods of
time without the fuel cell system
on.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the meter,
the power switch is not off. Exit
the vehicle after turning the
power switch off.

1855-2. Driving procedures
Owners Manual_USA_M62064_en
5
DrivingBr mode is not a shift position.
( P.189)
■If a message about a shift oper-
ation is shown
To prevent the shift position from
being selected inco rrectly or the
vehicle from moving unexpectedly,
the shift position may be changed
automatically or operating the shift
lever may be requi red. In this case,
change the shift position following
the messages on the multi-informa-
tion display.
Shift lever
Operate the shift lever gently and
Shift position
Select the shift position
depending on your pur-
pose and situation.
Shift position purpose
and functions
Shift posi-
tionObjective or function
P
Parking the vehi-
cle/starting the fuel cell system
RReversing
NNeutral
DNormal driving
NOTICE
■Situations where shift control
system malfunctions are pos-
sible
If any of the follo wing situations
occurs, shift control system mal-
functions are possible.
Immediately stop t he vehicle in a
safe place on level ground, apply
the parking brake, and then con-
tact your Toyota dealer.
●When the warning message
indicating the shift control sys-
tem appears on the multi-infor-
mation display. ( P.464)
●The display indicates that no
shift position is selected for
more than a few seconds.
Shift position display and
how to change the shift
position

1865-2. Driving procedures
Owners Manual_USA_M62064_ensecurely in the direction of the
arrow on the shift position indicator.
To shift to N, slide the shift lever in
the direction of t
he arrow and hold
it.
Release the shift lever after each
shifting operation to allow it to
return to its regu lar position ( ).
Shifting to Br mode is only possible
when the shift position is in D.
When shifting from P to N, D or R,
from N, D, Br mode or R to P, from
D or Br mode to R, or from R to D,
ensure that the brake pedal is being
depressed and the vehicle is sta-
tionary.
Shift position indicator
Meter display:
The current shift position is high-
lighted.
When any shift position other than
D position or Br mode is selected,
the Br mode indicator are displayed
in gray.
P position switch
Fully stop the vehicle and set the
parking brake, and then press the P
position switch.
When the shift position is changed
to P, the switch illuminates.
Check that the shift position indica-
tor shows P.
■Changing the shift position in
each power switch mode
●The shift position cannot be
changed when the power switch is
in ACC or off.
●When the power switch is in ON, if
the READY indicator is not illumi-
nated, the shift position can only
be changed to N.
●When the READY indicator is illu-
minated, the shift position can be
changed from P to D, N, or R.
●When the READY indicator is
flashing, the shift position cannot
be changed from P to any other
position, even if the shift lever is
operated. Operate the shift lever
again after the READY indicator
changes from fla shing to illumi-
nated.
■Shifting the shift position from
P to other positions
●While depressing the brake pedal
firmly, operate the shift lever. If the
shift lever is operated without
depressing the brake pedal, the
buzzer will sound and the shifting
operation will be disabled.
●When selecting the shift position,
make sure that th e shift position
has been changed to the desired
position by checking the shift posi-
tion indicator provided on the
instrument cluster.
●The shift position cannot be
changed from P to Br mode
directly.
■The shift position cannot be
changed when
In the following situations, a buzzer
will sound to inform you that the shift
position cannot be changed. Use
the appropriate oper ation to attempt
to change the shift position again.
●When attempting to change the
shift position from P with the brake
pedal not depressed
●When attempting to change the
shift position from P with the
accelerator pedal depressed
●When attempting to change the
shift position from N while stopped
or driving at an extremely low
speed with the brake pedal not
depressed
●When attempting to change the
shift position from N while stopped
or driving at an extremely low

1875-2. Driving procedures
Owners Manual_USA_M62064_en
5
Driving
speed with the accelerator pedal
depressed
●When attempting to change the
shift position from P or N to Br
mode
●When the P position switch is
pressed while driving
When driving at an extremely low
speed, the shift position may
change to P.
■The shift position automatically
changes to N when
In the following situations, a buzzer
will sound to inform you that the shift
position has been changed to N.
Use the appropriate operation to
attempt to change the shift position
again.
●When attempting to change the
shift position to R while the vehicle
is moving forward
When driving at a low speed, the
shift position may change to R.
●When attempting to change the
shift position to D while the vehicle
is moving backward
When driving at a low speed, the
shift position may change to D.
●When attempting to change the
shift position from R to Br mode
■If the N shift position is selected
while driving
If the shift lever is moved to N while
driving above a certain speed, the
shift position will change to N with-
out holding the shi ft lever in the N
position. In this situation, a buzzer
will sound and a message will be
displayed on the multi-information
display to inform you that the shift
position has been changed to N.
■Automatic P position selection
function
In the following situations, the shift
position is automatically changed to
P.
●When pressing t he power switch
with the vehicle stopped while the
power switch is in ON and the shift
position is in a position other than
P (after the shift position has
changed to P, the power switch
will turn off)
*
●If the driver’s door is opened and
all of the following conditions are
met, while the shift position is in a
position other than P
• The power switch is in ON.
• The driver is not wearing the seat
belt.
• The brake pedal is not depressed.
To start off the vehicle after the shift
position is changed to P, operate the
shift lever again.
●When the vehicle is stopped after
the fuel cell system has been
stopped in an emergency while
driving
●When voltage of the 12-volt bat-
tery drops while the shift position
is in a position other than P
*: When the power switch is pressed
while driving at extremely slow
speeds, such as immediately
before stopping th e vehicle, the
shift position may automatically
change to P. Make sure that the
vehicle is completely stopped
before pressing the power switch.
■If the shift position cannot be
shifted from P
There is a possibility that the 12-volt
battery is dischar ged. Check the 12-
volt battery in this situation.
(  P.485)

1885-2. Driving procedures
Owners Manual_USA_M62064_en
By performing the following
operation, the shift position
can be held in N until the shift
position switches to P without
activating the automatic P
position selection function.
1 Operate the shift lever and
change the shift position to N
when the fuel cell system is
operating.
2 Return the shift lever to its
regular position ( ).
3 Operate the shift lever to N
and hold it there until the
buzzer sounds.
4 Press the power switch within
5 seconds after the buzzer
sounds.
The fuel cell system stops with the
shift position in N.*
Make sure to check that the buzzer
sounds and “Holding N Push P
Switch When Done” is displayed on
the multi-information display.
In order to shift to a position
other than N, first press the P
position switch to change the
WARNING
■For the shift lever
●Do not remove the shift lever
knob or use anything but a gen-
uine TOYOTA shift lever knob.
Also, do not hang anything on
the shift lever. Doing so could
prevent the shift lever from
returning to position, causing
unexpected accidents to occur
when the vehicle is in motion.
●In order to prevent the shift
position from accidentally being
changed, do not touch the shift
lever when not using them.
■P position switch
●Do not press the P position
switch while the vehicle is mov-
ing.
If the P position switch is
pressed when driving at very
low speeds (for example,
directly before stopping the
vehicle), the vehicle may stop
suddenly when the shift position
switches to P, which could lead
to an accident.
●In order to prevent the shift
position from accidentally being
changed, do not touch the P
position switch when not using
them.
NOTICE
■Notes regarding shift lever
and P position switch opera-
tion
Avoid repeatedly operating the
shift lever and P position switch in
quick succession. The system
protection function may activate
and it will not be temporarily pos-
sible to shift the shift position
other than P. If this happens,
please wait for a while before
attempting to c hange the shift
position again.
■When exiting the vehicle
(driver’s seat only)
Check that the shi ft position indi-
cator shows P and that the park-
ing brake indicator is illuminated
before opening the door and exit-
ing the vehicle.
Keeping the shift position
in N without activating the
automatic P position
selection function

1895-2. Driving procedures
Owners Manual_USA_M62064_en
5
Driving
shift position to P.
 Make sure to operate the shift
lever with the fuel cell system
is operating.
If the fuel cell system is not
operating, it may not be possi-
ble to hold the shift position in
N.
*: To keep this state, do not operate
the power switch. If the power
switch is operated repeatedly, the
power switch will turn off after the
shift position has automatically
changed to P.
■Driving mode
 P. 3 2 0
■Snow mode
 P. 3 2 1
■Br mode
Suitable for driving that requires
strong deceleration force, such
as down-hill driving, etc.
To select Br mode, shift the shift
lever down.
The Br mode indicator will illumi-
nate on the meter.
To return to normal driving mode,
depress the accelerator pedal or
select the D position again with the
shift lever.
■Br mode
Depending on the condition of the
traction battery, Br mode may not be
available. In that case, a message is
displayed on the multi-information
display.
■Sounds when in Br mode
 P. 7 7
Selecting the driving
mode

1905-2. Driving procedures
Owners Manual_USA_M62064_en
1Right turn
2 Lane change to the right
(move the lever partway and
release it)
The right hand signals will flash 3
times.
3Lane change to the left
(move the lever partway and
release it)
The left hand signals will flash 3
times.
4Left turn
■Turn signals can be operated
when
The power swit ch is in ON.
■If the indicator flashes faster
than usual
Check that a light bulb in the front or
rear turn signal lights has not burned out.
■If the turn signals stop flashing
before a lane change has been
performed
Operate the lever again.
■Customization
Some functions can be customized.
(  P.512)
Tur n signal lever
Operating instructions