parking sensors TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

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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)
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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

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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

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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

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4515-5. Using the driving support systems
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Driving
■If “Clean Parking Assist Sensor” is displayed on the multi-information
display
A sensor may be dirty or covered with snow or ice. In such cases, if it is
removed from the sensor, the system should return to normal.
Also, due to the sensor being frozen at low temperatures, a malfunction dis-
play may appear or an obstacle may not be detected. If the sensor thaws out,
the system should return to normal.
■If “Parking Assist Malfunction” is displayed on the multi-information dis-
play
Depending on the malfunction of the sensor, the device may not be working
normally. Have the vehicle inspected by your Toyota dealer.
■Certification (Canada only)
This ISM device complies with Canadian ICES-001.
■Customization
Settings (e.g. buzzer volume) can be changed.
(Customizable features: P. 753)
WARNING
■When using intuitive parking assist
Observe the following precautions to avoid an unexpected accident.
●Do not exceed the speed limit of 6 mph (10 km/h).
●The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially
the sides of the vehicle) for safety, and drive slowly, using the brake to
control the vehicle’s speed.
●Do not install accessories within the sensors’ detection areas.

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5-5. Using the driving support systems
WARNING
■Sensors
Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where
this may occur are listed below.
●There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve
this problem.)
●The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen, the screen may show an
abnormal display, or obstacles may not be detected.
●The sensor is covered in any way.
●In harsh sunlight or intense cold weather
●<0032005100030044005100030048005b00570055004800500048004f005c00030045005800500053005c00030055005200440047000f0003005200510003004400510003004c00510046004f004c00510048000f0003005200510003004a00550044005900
48004f000f0003005200550003005200510003004a00550044[ss
●The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing ultra-
sonic waves.
●<0037004b004800030056004800510056005200550003004c0056000300560053004f00440056004b004800470003005a004c0057004b0003005a0044005700480055000300520055000300470055004800510046004b004800470003005a004c0057004b00
03004b004800440059005c000300550044004c00510011[
●The sensor is drenched with water on a flooded road.
●The vehicle is leaning considerably to one side.
●The vehicle is equipped with a fender pole or wireless antenna.
●The vehicle is approaching a tall or curved curb.
●The area directly under the bumpers is not detected.
●If obstacles draw too close to the sensor.
●The bumper or sensor receives a strong impact.
●A non-genuine Toyota suspension (lowered suspension etc.) is installed.
●There is another vehicle equipped with parking assist sensors in the vicin-
ity.
●Towing eyelets are installed.
●A backlit license plate is installed.
In addition to the examples above, depending on the shape and condition of
obstacles, detection may not be possible, or the detection range may be
shortened.

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Driving
WARNING
■Side sensors
In the following situations, the intuitive parking assist may not operate nor-
mally and may result in an unexpected accident. Drive carefully.
●Obstacles may not be detected in the side areas until the vehicle is driven
for a short time and a scan of the side areas is completed. (P. 450)
●Even after the scan of the side areas is completed, obstacles such as
other vehicles, people or animals that approach from the sides cannot be
detected.
●Even after the scan of the side areas is completed, obstacles may not be
detected depending on the surrounding situation of the vehicle.
At that time, the side sensor operation displays (P. 446) temporary turn
off.
■Obstacles which may not be properly detected
The shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles:
●Wires, fences, ropes, etc.
●<002600520057005700520051000f0003005600510052005a0003004400510047000300520057004b00480055000300500044005700480055004c0044004f005600030057004b00440057000300440045005600520055004500030056005200580051004700
03005a0044005900480056[
●Sharply-angled objects
●Low obstacles
●Tall obstacles with upper sections projecting outwards in the direction of
your vehicle
●<0033004800520053004f0048000300500044005c00030051005200570003004500480003004700480057004800460057004800470003004c004900030057004b0048005c00030044005500480003005a004800440055004c0051004a000300460048005500
570044004c005100030057005c005300480056000300520049[ clothing.
●Moving objects such as people or animals

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5-5. Using the driving support systems
NOTICE
■When using intuitive parking assist
In the following situations, the system may not function correctly due to a
sensor malfunction etc. Have the vehicle checked by your Toyota dealer.
●Intuitive parking assist operation display flashes, and a beep sounds when
no obstacles are detected.
●If the area around a sensor collides with something, or is subjected to
strong impact.
●If the bumper collides with something.
●If the display shows up and remains on without a beep.
●If a display error occurs, first check the sensor.
If the error occurs even when there is no ice, snow or mud on the sensor, it
is likely that the sensor is malfunctioning.
■Notes when washing the vehicle
●Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
●When using steam to wash the vehicle, do not direct steam too close to
the sensors. The sensors may not function properly if subjected to steam.

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Driving
Parking Suppor t Brake function
The system operates in the following situations when an obstacle is
detected in the traveling direction of the vehicle.
◆The vehicle is driven at low speeds and the brake pedal is not
depressed, or is depressed too late
◆The accelerator pedal is depressed too far
: If equipped
When a collision may occur with an obstacle while parking or
traveling at low speeds, when the vehicle suddenly moves for-
ward due to mistaken accelerator pedal operation, or when the
vehicle moves due to the wrong shift position being selected,
the sensors detect obstacles to the front or rear in the traveling
direction of the vehicle, and the system operates to lessen
impact with obstacles such as walls, and reduce resulting dam-
age.
Examples of system operation

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PRIUS PRIME_OM_OM47D71U_(U)
5-5. Using the driving support systems
◆The vehicle moves due to the wrong shift position being
selected
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
The Parking Support Brake function can be enabled/disabled on the
screen (P. 246) of the multi-information display.
When the Parking Support Brake
function is off, the PKSB OFF indi-
cator illuminates.
When the Parking Support Brake function is switched off, system operation
does not resume until the function is switched back on through the
screen on the multi-information display. (System operation does not
resume by operating the power switch.)
Types of sensors
1
2
3
4
Changing settings of the Parking Support Brake function