sensor TOYOTA PRIUS 2021 (in English) Owner's Guide

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PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
The Blind Spot Monitor function uses radar sensors to detect ve hicles
that are traveling in an adjacent lane in the area that is not reflected in
the outside rear view mirror (the blind spot), and advises the driver of
the vehicle’s existence via the outside rear view mirror indica tor.
The areas that vehicles can be detected in are outlined below.
The range of the detecti on area extends to:
Approximately 11.5 ft. (3.5 m)
from the side of the vehicle
The first 1.6 ft. (0.5 m) from the
side of the vehicle is not in the
detection area
Approximately 9.8 ft. (3 m) from
the rear bumper
Approximately 3.3 ft. (1 m) for-
ward of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor f unction detection areas
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2
3

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■Conditions under which the Blind Spot Monitor function may not func-
tion correctly
● The Blind Spot Monitor function may not detect vehicles correct ly in the fol-
lowing situations:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When mud, snow, ice, a sticker, etc. is covering the sensor or surround-
ing 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 b etween
each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your v ehicle and
the vehicle that enters the detection area
• When the difference in speed between your vehicle and another vehicle
is changing
• When a vehicle enters a detection area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the d etection area
• When driving up and down consecutive steep inclines, such as hills, dips
in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or uneven
surfaces
• When vehicle lanes are wide, or when driving on the edge of a lane, and
the vehicle in an adjacent lane is far away from your vehicle
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When there is a significant difference in height between your vehicle and
the vehicle that enters the detection area
• Immediately after the Blind Spot Monitor function is turned on
● Instances of the Blind Spot Monitor function unnecessarily dete cting a vehi-
cle and/or object may increase in the following situations:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When the distance between your vehicle and a guardrail, wall, etc. that
enters the detection area is short
• When driving up and down consecutive steep inclines, such as h ills, dips
in the road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehicle traveling in a lane other than the adjacent lanes enters the
detection area
• When driving on roads with sharp bends, consecutive curves, or uneven
surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the vehicle

PRIUS_OM_OM47E09U_(U)
3574-5. Using the driving support systems
4
Driving
The Rear Cross Traffic Alert func tions when your vehicle is in reverse.
It can detect other vehicles appr oaching from the right or left rear of
the vehicle. It uses radar sensors to alert the driver of the other vehi-
cle’s existence through flashing the outside rear view mirror i ndicators
and sounding a buzzer.
The Rear Cross Tra ffic Alert function
Approaching vehicles Detection areas
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The Rear Cross Traffic Alert function is only an assist and is not a replace-
ment for careful driving. The driver must be careful when backing up, even
when using the Rear Cross Traffic Alert function. The driver’s own visual
confirmation of behind you and your vehicle is necessary and be sure there
are no pedestrians, other vehicles etc. before backing up. Fail ure to do so
could cause death or serious injury.
According to conditions, the system may not function correctly. Therefore
the driver’s own visual confirmation of safety is necessary.
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PRIUS_OM_OM47E09U_(U)
3594-5. Using the driving support systems
4
Driving
■Conditions under which the Rear C ross Traffic Alert function will not
detect a vehicle
The Rear Cross Traffic Alert function is not designed to detect the following
types of vehicles and/or objects:
● Vehicles approaching from directly behind
● Vehicles backing up in a parking space next to your vehicle
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
*
: Depending on the conditions, detection of a vehicle and/or obj ect may
occur.
■ Conditions under which the Rear C ross Traffic Alert function may not
function correctly
● The Rear Cross Traffic Alert function may not detect vehicles correctly in the
following situations:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When mud, snow, ice, a sticker, etc. is covering the sensor or surround-
ing 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 b etween
each vehicle
• When a vehicle is approaching at high speed
●
Vehicles that the sensors cannot detect
due to obstructions

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PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
• Immediately after the Blind Spot Monitor function is turned on
• Immediately after the hybrid system is started with the Blind Spot Monitor
function on
• When backing up on a slope with a
sharp change in grade
• When backing out of a shallow angle parking spot
• When the sensors cannot detect a vehicle due to obstructions

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PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
Intuitive parking assist
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors
Rear side sensors
The intuitive parking assist can be
enabled/disabled on the
screen ( P. 151) of the multi-
information display.
When on is selected, intuitive park-
ing assist indicator will come on.
Once off is selected, the intuitive parking assist will not return to on until it
is turned to on by the screen of multi-information display again. (The
system does not automatically return to on even when the hybrid system is
restarted.)
: If equipped
The distance from your vehicle to nearby obstacles when paral-
lel parking or maneuvering into a garage is measured by the
sensors and communicated via the displays and a buzzer.
Always check the surrounding ar ea when using this system.
Types of sensors
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2
3
4
5
6
Turning the intuitive parking assist on/off

PRIUS_OM_OM47E09U_(U)
3634-5. Using the driving support systems
4
Driving
When the sensors detect an obstacle, the following displays inf orm
the driver of the position and distance to the obstacle.
■Multi-information display
Front center sensor opera-
tion
Front corner sensor opera-
tion
Front side sensor operation
Rear side sensor operation
Rear corner sensor operation
Rear center sensor operation
• The operation display is gray when the sensors are operating.
• The front side sensor operation displays and rear side sensor opera-
tion displays are not shown until a scan of the side areas is com-
pleted.
Display
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2
3
4
5
6

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4-5. Using the driving support systems
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
*: The images may differ from those shown in the illustrations de pending on
the detection status. ( P. 363)
Sensor detection displa y, obstacle distance
Display*
Approximate distance to obstacle
Front corner,
front center and
front side sensorsRear corner,
rear center and
rear side sensors
(continuous)
3.3 ft. (100 cm) to
2.0 ft (60 cm)4.9 ft. (150 cm) to
2.0 ft. (60 cm)
(continuous)
2.0 ft. (60 cm) to
1.5 ft (45 cm)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
3.3 ft. (100 cm) to
2.3 ft. (70 cm)3.3 ft. (100 cm) to
2.3 ft. (70 cm)
2.0 ft. (60 cm) to
1.5 ft (45 cm)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
(continuous)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
2.3 ft. (70 cm) to
1.0 ft. (30 cm)2.3 ft. (70 cm) to
1.0 ft. (30 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
(blinking)
Less than
1.2 ft. (35 cm)
Less than
1.2 ft. (35 cm)
Less than
1.0 ft. (30 cm)Less than
1.0 ft. (30 cm)
Less than
1.2 ft. (35 cm)
Less than
1.2 ft. (35 cm)
Far
Near
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6
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6
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Front center sensors
Front corner sensors
Front side sensors Rear side sensors
Rear corner sensors
Rear center sensors1
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PRIUS_OM_OM47E09U_(U)
3654-5. Using the driving support systems
4
Driving
When an obstacle is detect ed, the buzzer sounds.
● As the obstacle is approached, the buzzer sounds more rapidly.
When the obstacle is extremely close, the buzzer switches from
sounding intermittently (short beeps) to continuo usly (a long beep).
• Distance to obstacle detected by front corner sensor is approx i-
mately 1.2 ft. (35 cm) or less
• Distance to obstacle detected by front side sensor or rear sid e
sensor is approximately 1.0 ft. (30 cm) or less
• Distance to obstacle detected by front sensor is approximately
1.2 ft. (35 cm) or less
• Distance to obstacle detected by rear corner sensor is approxi-
mately 1.2 ft. (35 cm) or less
• Distance to obstacle detected by back sensor is approximately 1.2 ft. (35 cm) or less
● When an obstacle is detected by multiple sensors simultaneously ,
the buzzer sounds according to the distance to the closest obst a-
cle.
● When obstacles are simultaneously detected to the front and rear
of the vehicle, separate buzzers s ound patterns according to the
distance to each obstacle.
The volume and timing of t he buzzer can be changed. ( P. 690)
Buzzer

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4-5. Using the driving support systems
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 2.0 ft. (60 cm)
Approximately 3.3 ft. (100 cm)
• The detection range is shown in
the illustration to the right. How-
ever, the sensor will not detect
the obstacle if it is too close.
• For details regarding obstacle detection in the side areas.
(P. 368)
• The distance at which an obsta- cle can be detected and whether
it can be detected depends on
the shape and condition of the
obstacle.
The obstacle detecti on range can be changed. ( P. 6 9 0 )
Detection range of the sensors
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