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PRIUS_OM_OM47B89U_(U)
3294-5. Using the driving support systems
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Driving
■When “Blind Spot Monitor System  Malfunction Visit Your Dealer” is
shown on the multi- information display
There may be a sensor malfunction or misaligned. Have the vehicle
inspected by your Toyota dealer.
■ Certification for the Blind Spot Monitor
For vehicles sold in U.S.A.
For vehicles sold in Canada 
         
        
        
     
        
        Page 339 of 820
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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   screen
( → P. 139) of the multi-information display.
When ON is selected, Intuitive
parking 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
Changing settings of the Intuitive parking assist 
         
        
        
     
        
        Page 340 of 820
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4-5. Using the driving support systems
When the sensors detect an obstacle,  the following displays inform
the driver of the position an d 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 di splays 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 
         
        
        
     
        
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3414-5. Using the driving support systems
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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. 340)
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 sensors Rear side sensors
Rear corner sensors
Rear center sensors1
2
3
4
5
6 
         
        
        
     
        
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■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
■ Clearance sonar pop-up display
→P. 367
■ 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.
● Obstacles may not be detected if they are too close to the sensor.
● 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 befo\
re
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. 
         
        
        
     
        
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3454-5. Using the driving support systems
4
Driving
■Obstacle warning function
■ 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.
■ 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 di splayed 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
Setting of buzzer volume can be changed.
(Customizable features:  →P. 770)
When an obstacle in the side areas is
within the vehicle course while the vehicle
is moving forward or backward, this func-
tion inform the driver by the display and
the buzzer.
Obstacle
Calculated vehicle course
1
2 
         
        
        
     
        
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Driving
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
● On an extremely bumpy road, on an incline, on gravel, or on grass
● 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.
● The sensor is splashed with water or drenched with heavy rain.
● 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 detection range is reduced due to an object such as a sign.
● 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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WARNING
■Side sensors
In the following situations, the clearance sonar may not operate normally
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. 345)
● 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. 340) 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.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of
your vehicle
• People may not be detected if they are wearing certain types of cloth- ing.
• Moving objects such as people or animals