2020 TOYOTA PRIUS PLUG-IN HYBRID Owners Manual

4975-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
■ Conditions under which the Rear Crossing Traffic Alert function may not
function correctly
● The Rear Crossing Traffic Alert function may not detect vehicles correctly in
the following situations:
• When the sensor is misaligned due to a strong impact to the sensor 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 between
each vehicle
• When a vehicle is approaching at high speed
• 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

4985-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
●Instances of the Rear Crossing Traffic Alert function unnecessarily detecting
a vehicle and/or object may increase in the following situations:
• When a vehicle passes by the side of your vehicle
• When the distance between your vehicle and metal objects, such as a
guardrail, wall, sign, or parked vehicle, which may reflect electrical waves
toward the rear of the vehicle, is short
• When the sensors cannot detect a
vehicle due to obstructions
• When the parking space faces a
street and vehicles are being driven
on the street
IO55PH089

4995-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
Toyota parking assist-sensor
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors
Rear side sensors
The Toyota parking assist-sensor
can be enabled/disabled on the
screen ( P. 257) of the
multi-information display.
When on is selected, Toyota park-
ing assist-sensor indicator will
come on.
Once off is selected, the Toyota parking assist-sensor 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 sys-
tem 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 area when using this system.
Types of sensors
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3
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5
6
Turning the Toyota parking assist-sensor on/off

5005-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
When the sensors detect an obstacle, the following displays inform
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 operation
displays are not shown until a scan of the side areas is completed.
■
Audio system screen
When the Toyota parking assist
monitor is displayed:
A simplified image is displayed
on the right upper corner of the
audio system screen when an
obstacle is detected.
Display
1
2
3
4
5
6

5015-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
Sensor detection display, obstacle distance
Multi-informa-
tion display
*
Audio system
screen
*
Approximate distance to obstacle
Front corner,
front center and
front side
sensorsRear corner,
rear center and
rear side
sensors
(continuous)(blinking
slowly)
100 cm (3.3 ft.)
to 60 cm (2.0 ft)150 cm (4.9 ft.)
to 60 cm
(2.0 ft.)
(continuous)(blinking)
60 cm (2.0 ft.) to
45 cm (1.5 ft)
60 cm (2.0 ft.)
to 45 cm
(1.5 ft.)
100 cm (3.3 ft.)
to 70 cm (2.3 ft.)100 cm (3.3 ft.)
to 70 cm (2.3 ft.)
60 cm (2.0 ft.)
to 45 cm
(1.5 ft.)
60 cm (2.0 ft.) to
45 cm (1.5 ft)
(continuous)(blinking
rapidly)
45 cm (1.5 ft.) to
35 cm (1.2 ft.)
45 cm (1.5 ft.)
to 35 cm
(1.2 ft.)
70 cm (2.3 ft.) to
30 cm (1.0 ft.)70 cm (2.3 ft.) to
30 cm (1.0 ft.)
45 cm (1.5 ft.)
to 35 cm
(1.2 ft.)
45 cm (1.5 ft.) to
35 cm (1.2 ft.)
(blinking)(continuous)
Less than
35 cm (1.2 ft.)
Less than
35 cm (1.2 ft.)
Less than
30 cm (1.0 ft.)Less than
30 cm (1.0 ft.)
Less than
35 cm (1.2 ft.)
Less than
35 cm (1.2 ft.)
Far
Near
16
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2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6

5025-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
*: The images may differ from those shown in the illustrations depending on
the detection status. (P. 500)
Front center sensors
Front corner sensors
Front side sensorsRear side sensors
Rear corner sensors
Rear center sensors1
2
3
4
5
6

5035-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
When an obstacle is detected, 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 continuously (a long beep).
• Distance to obstacle detected by front corner sensor is approxi-
mately 35 cm (1.2 ft.) or less
• Distance to obstacle detected by front side sensor or rear side
sensor is approximately 30 cm (1.0 ft.) or less
• Distance to obstacle detected by front sensor is approximately
35 cm (1.2 ft.) or less
• Distance to obstacle detected by rear corner sensor is approxi-
mately 35 cm (1.2 ft.) or less
• Distance to obstacle detected by back sensor is approximately
35 cm (1.2 ft.) or less
●When an obstacle is detected by multiple sensors simultaneously,
the buzzer sounds according to the distance to the closest obsta-
cle.
●When obstacles are simultaneously detected to the front and rear
of the vehicle, separate buzzers sound patterns according to the
distance to each obstacle.
The volume and timing of the buzzer can be changed. (P. 782)
Buzzer

5045-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 60 cm (2.0 ft.)
Approximately 100 cm (3.3 ft.)
• 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. 505)
• 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 detection range can be changed. ( P. 782)
■Operation conditions
The power switch is turned on.
● Front corner sensors:
• Shift position is not in P
• Vehicle speed is approximately 10 km/h (6 mph) or less
● Front side sensors/rear side sensors:
• Shift position is not in P
• Vehicle speed is approximately 10 km/h (6 mph) or less
• Steering wheel is turned approximately 90  or more
● Front center sensors:
• Shift position is not in P or R
• Vehicle speed is approximately 10 km/h (6 mph) or less
● Rear corner sensors/rear center sensors:
Shift position is in R
■ Toyota parking assist-sensor pop-up display
 P. 527
Detection range of the sensors
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