2023 TOYOTA MIRAI Owners Manual

1374-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62064_en
4
Before driving
●When an exterior alarm sounds
once for 5 seconds
●When an interior alarm sounds
continuously
■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 Toy-
ota dealer immediately.
■If “Key Detected in Vehicle” is
shown on the multi-information
display
An attempt was m ade to lock the
doors using the smart key system while the electronic key was still
inside the vehicle. Retrieve the elec-
tronic key from the vehicle and lock
the doors again.
■Battery-saving function
The battery-saving function will be
activated in ord er to prevent the
electronic key battery and the 12-
volt battery from being discharged
while the vehicle is not in operation
for a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors.
• The electronic key has been left in an area of approxi mately 6 ft. (2
m) of the outside of the vehicle for
10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key system has not
been used for 14 days or longer,
the doors cannot be unlocked at
any doors except the driver’s door.
In this case, take hold of the
driver’s door handle, or use the
wireless remote c ontrol or the
mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
●When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
SituationCorrection procedure
An attempt was
made to lock the
vehicle while a door was open.Close all of the doors
and lock the
doors again.
The trunk was closed while the electronic key was still inside
the trunk and all the doors were locked.Retrieve the electronic
key from the trunk and close the trunk lid.
SituationCorrection procedure
The power switch
was turned to ACC while the driver’s
door was open (The driver’s door was
opened when the
power switch was in ACC).
Turn the power
switch off
and close
the driver’s door.
The power switch
was turned off while
the driver’s door was open.Close the driver’s door.

1384-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62064_en
●Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating properly. (Ways of coping:
 P.482)
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station , radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
●When carrying a portable radio,
cellular phone, cordless phone or
other wireless communication
device
●When the electronic key is in con-
tact with, or is covered by the fol-
lowing metallic objects
• Cards to which al uminum foil is
attached
• Cigarette boxes that have alumi- num foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that
emit radio waves) are being used
nearby
●When carrying the electronic key
together with the following devices that emit radio waves
• Another electronic key or a wire- less key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint wit h a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is near the ground or in a high place, or too
close to the center of the rear
bumper when the trunk is opened.
• The electronic key is on the instru- ment panel, rear package tray or
floor, or in the door pockets or
glove box when the fuel cell sys-
tem is 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
wave reception conditions, it may
be detected by the antenna out-
side the cabin and the doors 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, the
doors may be locked or unlocked
by anyone. However, only the

1394-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62064_en
4
Before driving
doors detecting the electronic key
can be used to unl ock the vehicle.
●Even if the electronic key is not
inside the vehicle, it may be possi-
ble to start the fuel cell system if
the electronic key is near the win-
dow.
●The doors may unlock or lock if a
large amount of water splashes on
the door handle, such as in the
rain or in a car wash, when the
electronic key is within the effec-
tive range. (The doors will auto-
matically be locked after
approximately 60 seconds if the
doors are not opened and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocke d by the entry
function. (Use the wireless remote
control to unloc k the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation.
●When the lock op eration is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recogniti on signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective ran ge, the door may
lock and unlock repeatedly. In this
case, follow the fo llowing correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca- tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to battery- saving mode to disable the smart
key system. ( P.137)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-informatio n display and a buzzer will sound outside the vehi-
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it comes into contact
with ice, snow, m
ud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that t he doors unlock
before pulling the door handle
again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance.
●Setting the electronic key to bat-
tery-saving mode helps to reduce
key battery depletion. ( P.137)
■To operate the system properly
●Make sure to carry the electronic
key when operating the system.
Do not get the electronic key too
close to the vehicle when operat-
ing the system from the outside of
the vehicle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention function m ay not operate.)
●Do not leave the electronic key
inside the trunk.
The key confinement prevention
function may not operate, depend-

1404-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62064_ening on the location of the key (the
inside edge of the
trunk), condi-
tions (inside a met al bag, close to
metallic objects) and the radio
waves in the surrounding area.
(  P.134)
■If the smart key system does
not operate properly
●Locking and unlocking the doors
and trunk: P. 4 8 3
●Starting the fuel cell system:
P. 4 8 4
■Customization
Some functions can be customized.
(  P.512)
■If the smart key system has
been deactivated in a custom-
ized setting
●Locking and unlocking the doors
and opening the trunk:
Use the wireless remote control or
mechanical key. ( P.127, 134,
483)
●Starting the fuel cell system and
changing power switch modes:
 P. 4 8 4
●Stopping the fuel cell system:
P. 1 8 2
■Certification
 P. 5 6 0
WARNING
■Caution regarding interfer-
ence with electronic devices
●People with implantable car-
diac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
keep away from the smart key
system antennas. ( P.136)
The radio waves may affect the
operation of such devices. If
necessary, the entry function
can be disabled. Ask your Toy-
ota dealer for details, such as
the frequency of radio waves
and timing of the emitted radio
waves. Then, consult your doc-
tor to see if you should disable
the entry function.
●Users of any electrical medical
device other than implantable
cardiac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
consult the manufacturer of the
device for information about its
operation under the influence of
radio waves.
Radio waves could have unex-
pected effects on the operation
of such medical devices.
Ask your Toyota dealer for details
on disabling the entry function.

1414-3. Adjusting the seats
Owners Manual_USA_M62064_en
4
Before driving
4-3.Adjusting the seats
■Seat adjustment switches Seat position adjustment
Seatback angle adjustment
Seat cushion (front) angle
adjustment (if equipped)
Vertical height adjustment (if
equipped)
Lumbar support adjustment
(for driver’s side)
■When adjusting the seat
●Make sure that any surrounding
passengers or ob jects are not
contact the seat.
●Take care when adjusting the seat
so that the head restraint does not
touch the ceiling.
■Power easy access system (if
equipped)
The driver’s seat and steering wheel
move in accordance with power
switch mode and the driver’s seat
belt condition. ( P.142)
Front seats
Adjustment procedure
WARNING
■When adjusting the seat posi-
tion
●Take care when adjusting the
seat position to ensure that
other passengers are not
injured by the moving seat.
●Do not put your hands under the
seat or near the moving parts to
avoid injury.
Fingers or hands may become
jammed in the seat mechanism.
●Make sure to leave enough
space around the feet so they
do not get stuck.
■Seat adjustment
To reduce the risk of sliding under
the lap belt during a collision, do
not recline the se at more than
necessary.
If the seat is too reclined, the lap
belt may slide past the hips and
apply restraint for ces directly to
the abdomen, or your neck may
contact the shoulder belt, increas-
ing the risk of death or serious
injury in the event of an accident.
Adjustments should not be made
while driving as the seat may
unexpectedly move and cause
the driver to lose control of the
vehicle.

1424-3. Adjusting the seats
Owners Manual_USA_M62064_en
*: If equipped
The driver’s seat and steering
wheel are automatically
adjusted to allow the driver to
enter and exit the vehicle easily.
When all of the following have
been performed, the driver’s
seat and steering wheel are
automatically adjusted to a posi-tion that allows driver to enter
and exit the vehicle easily.

The shift position has been
shifted to P.
 The power switch has been
turned off.
 The driver’s seat belt has
been unfastened.
When any of the following has
been performed, the seat and
steering wheel automatically
return to their original positions.
• The power switch has been turned to ACC or ON.
• The driver’s seat belt has been fastened.
■Operation of the power easy
access system
When exiting the vehicle, the power
easy access syste m may not oper-
ate if the seat is already close to the
rearmost position, etc.
■Customization
Some functions can be customized.
(  P.512)
■Recording procedure
1 Turn the power switch to ON.
2 Check that the shift position
is in P.
3 Adjust the driver’s seat,
steering wheel, outside rear
view mirrors and head-up
display (if equipped) to the
desired positions.
Driving position mem-
or y*
This feature automatically
adjusts the positions of the
driver’s seat, steering
wheel, outside rear view
mirrors and head-up display
(if equipped) to make enter-
ing and exiting the vehicle
easier or to suit your prefer-
ences.
Up to 2 different driving
positions can be recorded.
Each electronic key can be
registered to recall your pre-
ferred driving position.
Power easy access sys-
tem
Recording/recalling a
driving position

1434-3. Adjusting the seats
Owners Manual_USA_M62064_en
4
Before driving
4 While pressing the “SET” but-
ton, or within 3 seconds after
the “SET” button is pressed,
press button “1” or “2” until
the buzzer sounds.
If the selected button has already
been preset, the previously
recorded position will be overwrit-
ten.
■Recall procedure
1 Turn the power switch to ON.
2 Check that the shift position
is in P.
3 Press one of the buttons for
the driving position you want
to recall until the buzzer
sounds.
■To stop the position recall oper-
ation part-way through
Perform any of the following opera-
tions:
●Press the “SET” button.
●Press button “1” or “2”.
●Operate any of t he seat adjust-
ment switches (only cancels seat
position recall).
●Operate the tilt and telescopic
steering control switch (only can-
cels steering wheel position
recall).
■Seat positions that can be
memorized ( P.141)
The positions adjusted by the fol-
lowing procedure can be recorded:
●Seat position adjustment
●Seatback angle adjustment
●Seat cushion (front) angle adjust-
ment
●Vertical height adjustment
■Operating the driving position
memory after turning the power
switch off
Recorded seat positions can be
activated up to 180 seconds after
the driver’s door is opened and
another 60 seconds after it is closed
again.
■In order to corre ctly use the
driving position memory func-
tion
If a seat position is already in the
furthest possible position and the
seat is operated in the same direc-
tion, the recorded position may be
slightly different w hen it is recalled.
■When recalling the driving posi-
tion
Take care when recalling the driving
position so that the head restraint
does not touch the ceiling.
■When the recorded seat posi-
tion cannot be recalled
The seat positi on may not be
recalled in some situations when the
seat position is recorded in a certain
range. For details, contact your Toy-
ota dealer.

1444-3. Adjusting the seats
Owners Manual_USA_M62064_en
■Registering procedure
Record your driving position to
button “1” or “2” before perform-
ing the following:
Carry only the key you want to
register, and then close the
driver’s door.
If 2 or more keys are in the vehi-
cle, the driving position cannot
be recorded properly.
1 Turn the power switch to ON.
2 Check that the shift position
is in P.
3 Recall the driving position
that you want to record.
4 While pressing the recalled
button, press and hold the
door lock switch (either lock
or unlock) until the buzzer
sounds.
If the button could not be regis-
tered, the buzzer sounds continu- ously for approxim
ately 3 seconds.
■Recall procedure
1 Make sure that the doors are
locked before recalling the
driving position. Carry the
electronic key that has been
registered to the driving posi-
tion, and then unlock and
open the driver’s door using
the smart key system wire-
less remote control.
The driving position will move to the
recorded position (not including the
steering wheel and head-up display
[if equipped]). However, the seat
will move to a position slightly
behind the recorded position in
order to make entering the vehicle
easier.
If the driving position is in a position
that has already been recorded, the
seat and outside rear view mirrors
will not move.
2Turn the power switch to
ACC or ON, or fasten a seat
belt.
The seat, steering wheel and head-
up display (if equipped) will move to
the recorded position.
■Cancelation procedure
Carry only the key you want to
cancel and then close the
driver’s door.
WARNING
■Seat adjustment caution
Take care during seat adjustment
so that the seat d oes not strike
the rear passenger or squeeze
your body again st the steering
wheel.
Registering/recall/cancel-
ing a driving position to
an electronic key (mem-
ory recall function)