2022 TOYOTA MIRAI radio antenna

1324-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62084_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.468)
●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

1344-2. Opening, closing and locking the doors and trunk
Owners Manual_USA_M62084_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.128)
■If the smart key system does
not operate properly
●Locking and unlocking the doors
and trunk: P. 4 6 9
●Starting the fuel cell system:
P. 4 7 0
■Customization
Some functions can be customized.
(  P.498)
■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.121, 127,
469)
●Starting the fuel cell system and
changing power switch modes:
 P. 4 7 0
●Stopping the fuel cell system:
P. 1 7 4
■Certification
 P. 5 4 4
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.130)
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.

3085-5. Using the driving support systems
Owners Manual_USA_M62084_en
■When a parking space can-
not be registered
■If a black screen is displayed on
the multimedia display when
the Advanced Park is operating
The multimed ia system or
Advanced Park is being affected by
radio waves or may be malfunction-
ing. If a radio antenna is installed
near a camera, move it to a location
as far from the cameras as possible.
If a radio antenna is not installed
near a camera, and the screen does
not return to normal after turning the
power switch off and then starting
the fuel cell system again, have the
vehicle inspected by your Toyota
dealer.
For details on the following,
refer to “Panoramic view moni-
tor” of “Peripheral monitoring
system” in the “NAVIGATION
AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
 Displayable range of the
screens 
Cameras
 Differences between dis-
played images and the actual
road
 Differences between dis-
played images and the actual
objects
■Situations in which white
parking space box may not
be recognized properly
In situations such as the follow-
ing, parking space box on the
road surface may not be
detected:
 When the parking space does
not use white lines (parking
space boundaries are marked
with rope, blocks, etc.)
 When the parking space box
are faded or dirty, making
them unclear
 When the road surface is
bright, such as concrete, and
the contrast between it and
the white parking space box is
small
 When the parking space box
are any color other than yel-
low or white
 When the area surrounding
the parking space is dark,
such as at night, in an under-
ground parking lot, parking
garage, etc.
 When it is raining or has
rained and the road surface is
wet and reflective or there are
MessageCondition/Cor-
rective Action
“No available
parking space to
register”
was selected
at a parking
space that can-
not be detected
 Operate the
Advanced Park
at a parking
space where the
road surface can
be recognized
Precautions for use

3115-5. Using the driving support systems
Owners Manual_USA_M62084_en
5
Driving
are detected, they may cause the
target parking space to be mis-
aligned.
Select on the multimedia
display, and then select
“Advanced Park”.
■Speed Profile
The vehicle speed for when
parking assistance is performed
can be set.
This setting cannot be changed for
when registering a parking space to
the memory function.
WARNING
■To ensure the Advanced Park
can operate properly
 P. 2 5 5
In addition, please refer to the
“Panoramic view monitor” of
“Peripheral monito ring system” in
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
■When the sensors do not
operate properly
●In situations such as the follow-
ing, the sensors may not oper-
ate correctly, possibly leading to
an accident. Proceed carefully.
• When a sensor is frozen. (Thawing the area will resolve
this problem.) In especially cold
weather, if a sensor is frozen
the screen may show an abnor-
mal display, or parked vehicles
may not be detected.
• When the vehicl e is tilted at a
steep angle
• When it is extremely hot or cold
• When driving on rough, sloped, or gravel roads, or grass
• When ultrasonic waves are being produced near the vehicle
due to vehicle horns, motorcy-
cle engines, air brakes of large
vehicles, or the sensors of
another vehicle
• When it is raining or a sensor is splashed by water
• When the area around the vehi- cle is dark or backlit
• When a fender pole or radio antenna has been installed to
the vehicle
• When a sensor is extremely close to a parked vehicle
• When there is a parked vehicle next to the target parking space,
if the displayed target parking
space is far from the actual tar-
get parking space, a sensor
may be misaligned. Have the
vehicle inspected by your Toy-
ota dealer.
• Do not install any accessories near the detection area of the
sensors.
●The Advanced Park will guide
the vehicle to appropriate posi-
tions for changing the direction
of travel, however, if you feel
that the vehicle is approaching
too close to an adjacent parked
vehicle at any time, depress the
brake pedal and change the
shift position. However, if this is
performed, the number of turns
necessary may increase, and
the vehicle may be parked at an
angle.
Changing the settings