TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

PRIUS PRIME_OM_OM47D71U_(U)
4415-5. Using the driving support systems
5
Driving
The areas that vehicles can be detected in are outlined below.
To give the driver a more consistent time to react, the buzzer can alert
for faster vehicles from farther away.
Example:
■The Rear Cross Traffic Alert function is operational when
●The BSM system is set to on. (P. 246)
●The shift position is in R.
●Vehicle speed is less than approximately 5 mph (8 km/h).
●Approaching vehicle speed is between approximately 5 mph (8 km/h) and
18 mph (28 km/h).
The Rear Cross Traffic Alert function detection areas
IO55PH088
Approaching vehicleSpeedApproximate
alert distance
Fast18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)
1

442
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
■Conditions under which the Rear Cross 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
●<002a005800440055004700550044004c004f0056000f0003005a0044004f004f0056000f00030056004c004a00510056000f0003005300440055004e00480047000300590048004b004c0046004f00480056000300440051004700030056004c0050004c00
4f0044005500030056005700440057004c0052005100440055[y objects
*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle
*
*
: Depending on the conditions, detection of a vehicle and/or object may
occur.
■Conditions under which the Rear Cross 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 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 ●Vehicles that the sensors cannot detect
due to obstructions
IO55PH089

PRIUS PRIME_OM_OM47D71U_(U)
4435-5. Using the driving support systems
5
Driving• 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
IO55PH089

444
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
●Instances of the Rear Cross 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 parking space faces a
street and vehicles are being driven
on the street

445
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
5
Driving
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. 246) 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 area when using this system.
Types of sensors
1
2
3
4
5
6
Turning the intuitive parking assist on/off

446
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
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 opera-
tion displays are not shown until a scan of the side areas is com-
pleted.
Display
1
2
3
4
5
6

PRIUS PRIME_OM_OM47D71U_(U)
4475-5. Using the driving support systems
5
Driving
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
*: The images may differ from those shown in the illustrations depending on
the detection status. (P. 446)
Sensor detection display, 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
16
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Front center sensors
Front corner sensors
Front side sensorsRear side sensors
Rear corner sensors
Rear center sensors1
2
3
4
5
6

448
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
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 1.2 ft. (35 cm) or less
• Distance to obstacle detected by front side sensor or rear side
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 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. 753)
Buzzer

PRIUS PRIME_OM_OM47D71U_(U)
4495-5. Using the driving support systems
5
Driving
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. 450)
• 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. 7 5 3 )
■Operation conditions
The power switch is turned on.
●Front corner sensors:
• Shift position is not in P
• Vehicle speed is approximately 6 mph (10 km/h) or less
●Front side sensors/rear side sensors:
• Shift position is not in P
• Vehicle speed is approximately 6 mph (10 km/h) 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 6 mph (10 km/h) or less
●Rear corner sensors/rear center sensors:
Shift position is in R
■Intuitive parking assist pop-up display
P. 471
Detection range of the sensors
1
2
3
4

450
PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
■Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s
bumper.
●Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.
●<003200450056005700440046004f00480056000300500044005c00030051005200570003004500480003004700480057004800460057004800470003004c004900030057004b0048005c0003004400550048000300570052005200030046004f0052005600
4800030057005200030057004b004800030056004800510056[or.
●There will be a short delay between obstacle detection and display. Even
when traveling at a low speed, if you come too close to an obstacle before
the display and buzzer activate, the display and buzzer may not activate at
all.
●Thin posts or objects lower than the sensor may not be detected when
approached, even if they have been detected once.
●It might be difficult to hear beeps due to the volume of audio system or air
flow noise of the air conditioning system.
■Obstacle warning function
When an obstacle in the side areas is within the vehicle course while the
vehicle is moving forward or backward, this function inform the driver by the
display and the buzzer. (P. 447, 448)
■Obstacle detection in side areas
●Obstacles in the side areas are detected while driving by scanning the side
areas with the side sensors. Recognized obstacles are retained in memory
for up to approximately 2 minutes.
●Obstacles may not be detected in the side areas until the scan completes.
After the power switch is turned on, scanning completes after driving the
vehicle for a short period of time.
●When an obstacle such as another vehicle, pedestrian or animal is detected
by the side sensors, the obstacle may continue to be detected even after it
has left the side sensor detection area. Obstacle
Calculated vehicle course
1
2