2023 TOYOTA MIRAI sensor

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Driving
■The distance and buzzer
Vehicles without Advanced Park
*: Automatic buzzer mute function is enabled. ( P.268)
Approximate distance to obstacleBuzzer
Front center sensor:
Approximately 3.3 ft. to 2.0 ft. (100
cm to 60 cm)
*
Rear center sensor:
Approximately 4.9 ft. to 2.0 ft. (150
cm to 60 cm)
*
Slow
Approximately 2.0 ft. to 1.5 ft. (60 cm
to 45 cm)
*Medium
Approximately 1.5 ft. to 1.0 ft. (45 cm
to 30 cm)
*Fast
Approximately 1.0 ft. to 0.5 ft. (30 cm
to 15 cm)
ContinuousLess than approximately 0.5 ft. (15
cm)

2685-5. Using the driving support systems
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Vehicles with Advanced Park
*: Automatic buzzer mute function is enabled. (P.268)
■Buzzer operation and dis-
tance to an object
A buzzer sounds when the sen-
sors are operating. 
The buzzer beeps faster as
the vehicle approaches an
object.
When the vehicle comes
within approximately 1.0 ft.
Approximate distance to obstacleBuzzer
Front center sensor:
Approximately 6.6 ft. to 3.3 ft. (200
cm to100 cm)
Rear center sensor:
Approximately 6.6 ft. to 4.9 ft. (200
cm to 150 cm)
Side sensor:
Approximately 6.6 ft. to 4.1 ft. (200
cm to 125 cm)
Corner sensor:
Approximately 6.6 ft. to 2.0 ft. (200
cm to 60 cm)
Does not sound (Display only)
Front center sensor:
Approximately 3.3 ft. to 2.0 ft. (100
cm to 60cm)
*
Rear center sensor:
Approximately 4.9 ft. to 2.0 ft. (150
cm to 60cm)
*
Side sensor:
Approximately 4.1 ft. to 2.0ft. (125
cm to 60 cm)
*
Slow
Approximately 2.0 ft. to 1.5 ft. (60 cm
to 45 cm)
*Medium
Approximately 1.5 ft. to 1.0 ft. (45 cm
to 30 cm)
*Fast
Less than approximately 1.0 ft. (30
cm)Continuous

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Driving
(30 cm) of the object, the
buzzer sounds continuously.
 When 2 or more sensors
simultaneously detect a static
object, the buzzer sounds for
the nearest object.
 Even when the sensors are
operating, the buzzer will be
muted in some situations.
(automatic buzzer mute func-
tion)
■Adjusting the buzzer vol-
ume
The buzzer volume can be
adjusted on the multi-informa-
tion display.
Use the meter control switches
to change settings. ( P.106)
1 Press or of the meter
control switch to select .
2 Press or of the meter
control switch to select
and then press and hold .
3 Select the volume and then
press .
Each time the switch is pressed,
the volume lev el will change
between 1, 2, and 3.
■Muting a buzzer temporarily
When an object is detected, the
temporary mute switch is dis-
played on the multimedia dis-
play system.
Select to mute a buzzer of intuitive parking assist, RCTA
*,
and RCD
* all together.
Mute will be canceled automati-
cally in the following situations:
 When the shift position is
changed.
 When the vehicle speed
exceeds a certain speed.
 When there is a malfunction
in a sensor or the system is
temporarily unavailable.
 When the operating function
is disabled manually.
 When the power switch is
turned off.
*: If equipped
The object warning function
informs the driver of the exis-
tence of objects along the side
of the vehicle, using a display
and buzzer, if the objects are
within the estimated path of the
vehicle.
Object warning function
(vehicles with Advanced
Park)

2705-5. Using the driving support systems
Owners Manual_USA_M62064_en
ObjectCalculated vehicle route
When the vehicle is moving, the side sensors or side cameras ca n
detect objects. While the vehicle is moving, if a detected obje ct can
no longer be detected by the side sensors or side cameras, the loca-
tion of the object relative to the vehicle is estimated. If the object is
determined to be in the estimated path of the vehicle, the obje ct
warning function will operate.
Object detected by side sensors or side cameras
1 The vehicle is stopped and objects along the sides of the vehic le
are not detected.
2 Objects are detected as the vehicle is moving.
3 Even though the objects are out side of the detection area of the
side sensors or side cameras, a warning is displayed and a
buzzer sounds.
■Object warning function operat-
ing conditions
●The Advanced Park is operating.
●The vehicle moves about 23.0 ft.
(7 m) after the fuel cell system is
started.
●The R shift position is selected.
●After the D shift position has been
selected, the vehicle has moved
23.0 ft. (7 m) or less.
●Camera switch has been pressed
and the multimedia display is dis-
played.
●The front or rear s ensor detects a
stationary object.
■Detection of objects along the
sides of the vehicle
●Objects along the sides of the
vehicle are not instantaneously
detected. The location of objects
in relation to the vehicle is esti-
mated after they are first detected
by the front or rear side sensors,
or side cameras. Therefore, after
the power switch is changed to
ON, even if an object is along the
side of the vehicle, it may not be
detected until the vehicle has
been driven a small amount and
the side sensors o r side cameras
completely scan the areas along
the sides of the vehicle.
●If a vehicle, person, animal, etc., is
detected by a side sensors or side
cameras, but then leaves the

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Driving
detection area of the side sensors
or side cameras, the system will
assume the object has not moved.
WARNING
■Side sensors and side cam-
eras
In situations such as the following,
the function may n ot operate cor-
rectly, possibly leading to an acci-
dent. Proceed carefully.
●When starting off shortly after
the power switch is turned to
ON and a small vehicle or other
object which cannot be detected
by a front side sensor is next to
the vehicle.
In the situation shown in the fol-
lowing illustration, even if the
vehicle starts off, the vehicle on
the left will not be detected and
the object warni ng function will
not operate.
●When an object or person is in a
position which cannot be
detected by the side sensors or
side cameras.
●When, after the side sensors
have completed scanning the
areas along the sides of the
vehicle, a vehicle, person, or
other object approaches the
side of the vehic le and cannot
be detected.
●When the outside rear view mir-
ror is closed, the side sensors
or side cameras cannot detect
objects.
●If the 12-volt battery was dis-
charged or has been removed
and installed, fold and extend
the outside rear view mirrors.

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Driving
The buzzer also sounds for approx-
imately 1 second immediately after
the RCTA function is turned on.
Use the meter control switches
to enable/disable the RCTA
function. ( P.106)
1 Press or to select .
2 Press or to select
“RCTA” and then press .
When the RCTA function is dis-
abled, the RCTA OFF indicator
( P.97) illuminates. (Each time the
power switch is turned off then
changed to ON, the RCTA function
will be enabled a utomatically.)
■Outside rear view mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicato r may be difficult
to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises, such as high
audio volume.
■When “Rear Cross Traffic Alert
Unavailable” is shown on the
multi-information display
The sensor voltage has become
abnormal, or water, snow, mud, etc.,
may be built up in the vicinity of the
sensor area of t he rear bumper.
(  P.258)
Removing the water, snow, mud,
etc., from the vicinity of the sensor
area should return it to normal. Also,
the sensor may not function nor-
mally when used in extremely hot or
cold weather.
■When “Rear Cross Traffic Alert
Malfunction Visit Your Dealer”
is shown on the multi-informa-
tion display
There may be a sensor malfunction
or misaligned. Have the vehicle
inspected at your Toyota dealer.
■Radar sensors
 P.258
■Operation of the RCTA
function
The RCTA function uses radar
sensors to detect vehicles
approaching from the right or left
at the rear of the vehicle and
alerts the driver of the presence
of such vehicles by flashing the
outside rear view mirror indica-
tors and sounding a buzzer.
Approaching vehicles
Detection areas of approach-
ing vehicles
■RCTA icon display
When a vehicle approaching
from the right or left at the rear
of the vehicle is detected, the
following will be displayed on
the multimedia display.
Turning the RCTA func-
tion on/off
RCTA function

2755-5. Using the driving support systems
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Driving
●When there is a malfunction in a
sensor or the system is temporar-
ily unavailable.
●When the operating function is
disabled manually.
●When the power switch is turned
off.
*: If equipped
■Conditions under which the
system will not detect a vehicle
The RCTA function is not designed
to detect the following types of vehi-
cles and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking
space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
vehicle
●Vehicles approaching from the
parking spaces next to your vehi-
cle
*
●The distance between the sensor
and approaching vehicle gets too
close
*: Depending on the conditions, detection of a vehicle and/or
object may occur.
■Situations in which the system
may not operate properly
The RCTA function may not detect
vehicles correctly in the following
situations:
●When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
●When mud, snow, ice, a sticker,
etc.,is covering the sensor or sur-
rounding area on the rear bumper
●When driving on a road surface
that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
●When multiple vehicles are
approaching with only a small gap
between each vehicle
●When a vehicle is approaching at
high speed
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle car rier, or snow plow
●When backing up on a slope with
a sharp change in grade

2765-5. Using the driving support systems
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●When backing out of a sharp
angle parking spot
●Immediately after the RCTA func-
tion is turned on
●Immediately after the fuel cell sys-
tem is started with the RCTA func-
tion on
●When the sensors cannot detect a
vehicle due to obstructions
●When towing a trailer
●When there is a significant differ-
ence in height between your vehi-
cle and the vehicle that enters the
detection area
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a size other than
specified are installed
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the
detection area
■Situations in which the system
may operate even if there is no
possibility of a collision
Instances of the RCTA function
unnecessary detec ting a vehicle
and/or object may increase in the
following situations:
●When the parking space faces a
street and vehicles are being
driven on the street
●When the distance between your
vehicle and metal objects, such as
a guardrail, wall, sign, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle car rier, or snow plow