sensor TOYOTA AVALON HYBRID 2020 (in English) Service Manual

2864-5. Using the driving support systems
■Conditions under which the RCTA function will not detect a vehicle
The RCTA function is not designed to detect the following types of vehicles
and/or objects:
● Small motorcycles, bicycles, pedestrians, etc.
*
●Vehicles approaching from directly behind
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
●Vehicles backing up in the parking space next to your vehicle*
*
: Depending on the conditions, detection of a vehicle and/or obj ect may
occur.
■ Conditions under which the RCTA function may not function corre ctly
● The RCTA function may not detect vehicles correctly in the following condi-
tions:
• 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 o r surround-
ing area on the rear bumper
• During bad weather such as heavy rain, fog, snow, etc.
• When multiple vehicles approach continuously
• Shallow angle parking
• When a vehicle is approaching at high speed
• When parking on a steep incline, such as hills, a dip in the r oad, etc.
• Immediately after the RCTA function is turned on
• Immediately after the hybrid system is started with the RCTA f unction on.
• When items such as a bicycle carrier are installed on the rear of the vehi-
cle
●
Vehicles that the sensors cannot detect
due to obstructions
● Vehicles that the sensors cannot detect
due to obstructions

2924-5. Using the driving support systems
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Press
/ of the meter con-
trol switches, select .
Press
/ of the meter con-
trol switches, select .
Press of the meter con-
trol switch.
Each time is pressed, t he function changes on/off.
When on, the indicator light comes on to inform the driver that the sys-
tem is operational.
Intuitive parking assist
: If equipped
The distance from your vehicle to nearby objects when parallel
parking or maneuvering into a garage is measured by the sen-
sors and communicated via the displays and a buzzer. Always
check the surrounding area wh en using this system.
Types of sensors
1
2
3
4
Turning the intuitive parking assist on/off
1
2
3

2934-5. Using the driving support systems
4
Driving
When the sensors detect an object, the following displays inform the
driver of the position a nd distance to the object.
■Multi-information display
Front corner sensor opera-
tion
Front center sensor opera-
tion
Rear corner sensor operation
Rear center sensor operation
Select to mute the buzzer
sounds.
■Audio system screenIntuitive parking assist
When the vehicle is moving
backward.
A simplified image is displayed
on the upper part of the screen
when an object is detected.
■Muting the buzzer sound
●To mute the buzzer sound
The buzzer can be temporarily muted by pressing of the meter c on-
trol switches while an object detection display is shown on the multi-infor-
mation display.
● To cancel the mute
Mute will be automatically cancelled in the following situation s.
• When the shift position is changed
• When the vehicle speed has reached or exceeded approximately 6 mph
(10 km/h) with the shift lever in D
• When the intuitive parking assist is turned off once and turned on again
• When the power switch is turned off once and turned to ON mode again
• When a sensor is malfunctioning
Display
1
2
3
4
5
1

2944-5. Using the driving support systems
■Distance display
Sensors that detect an object will illuminate cont inuously or blink.
*: The images may differ from those shown in the illustrations. (P. 293)
Sensor detection display, object distance
Multi-
information display
*
Insert
displayApproximate distance to object
Front and rear center sensorFront and rear corner sensor
(continuous)(blinking
slowly)
Far
Near Front center
sensor:
3.3 ft. (100 cm) to
2.4 ft. (73 cm)
Rear center
sensor:
4.9 ft. (150 cm) to
2.5 ft. (75 cm)

(continuous)(blinking)
Front center
sensor:
2.4 ft. (73 cm) to
1.5 ft. (45 cm)
Rear center
sensor:
2.5 ft. (75 cm) to
1.5 ft. (45 cm)
2.6 ft. (80 cm) to
1.5 ft. (45 cm)
(continuous)(blinking
rapidly) 1.5 ft. (45 cm) to
1.1 ft. (35 cm)
1.5 ft. (45 cm) to
1.1 ft. (35 cm)
(blinking)(continuous)
Less than
1.1 ft. (35 cm)
Less than
1.1 ft. (35 cm)

2954-5. Using the driving support systems
4
Driving
■Buzzer operation and distance to an object
A buzzer sounds when the sensors are operating.
● The buzzer sounds faster as the vehicle approaches an object.
When the vehicle comes within the following distance of the
object, the buzzer sounds continuo usly: Approximately 1.2 ft. (35
cm).
● When 2 or more objects are detec ted simultaneously, the buzzer
system responds to the nearest object. If one or both come with in
the above distances, the beep will repeat a long tone, followed by
fast beeps.
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 2.6 ft. (80 cm)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect objects that
are extremely close to the vehicle.
The range of the sensors may
change depending on the shape of
the object, etc.
Detection range of the sensors
1
2
3

2964-5. Using the driving support systems
■The intuitive parking assist can be operated when
●Front corner sensors:
• The power switch is in ON mode.
• The shift lever is in other than P.
• The vehicle speed is less than about 6 mph (10 km/h).
● Front center sensors:
• The power switch is in ON mode.
• The shift lever is in other than P or R.
• The vehicle speed is less than about 6 mph (10 km/h).
● Rear corner and rear center sensors:
• The power switch is in ON mode.
• The shift lever is in R.
• The vehicle speed is less than about 6 mph (10 km/h).
■ Intuitive parking assist display
When an object is detected while the Toyota parking assist moni tor or pan-
oramic view monitor is in use, the warning indicator will appea r in the upper
part of the screen even if the display setting has been set to off.
■ Sensor detection information
●The sensor’s detection areas are limited to the areas around th e vehicle’s
bumper.
● Depending on the shape of the object and other factors, the det ection dis-
tance may shorten, or detection may be impossible.
● Objects may not be detected if they are too close to the sensor .
● There will be a short delay between object detection and displa y. Even at
slow speeds, there is a possibility that the object will come w ithin the sen-
sor’s detection areas before the display is shown and the buzze r sounds.
● 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.
■ If a battery terminal has been disconnected and reconnected
The system needs to be initialized.
To initialize the system, drive the vehicle straight ahead for 5 seconds or more
at a speed of approximately 22 mph (35 km/h) or more.
■ If “Parking Assist Unavailable Please Clean Parking Assist Sens or” is
displayed on the multi-information display
A sensor may be dirty or covered with snow or ice. In such case s, if it is
removed from the sensor, the system should return to normal.
Also, due to the sensor being frozen at low temperatures, a mal function dis-
play may appear or an object may not be detected. If the sensor thaws out,
the system should return to normal.

2974-5. Using the driving support systems
4
Driving
■If “Parking Assist Unavailable” is displayed on the multi-infor mation dis-
play
● Water may be continuously flowing over the sensor surface, such as in a
heavy rain. When the system determines that it is normal, the system will
return to normal.
● Initialization may not have been performed after a battery term inal was dis-
connected and reconnected. Initialize the system. If this messa ge continues
to be displayed even after initialization, have the vehicle ins pected by your
Toyota dealer.
■ Customization
Some functions can be customized. ( P. 111, 525)
WARNING
■When using the intuitive parking assist
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be d riven safely
and possibly cause an accident.
● Do not use the sensor at speeds in excess 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 t he brake to
control the vehicle’s speed.
● Do not install accessories within the sensors’ detection areas.

2984-5. Using the driving support systems
WARNING
■Sensors
Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect an object. Particular instances where
this may occur are listed below.
● There is dirt, snow or ice on the sensor. (Wiping the sensors w ill resolve
this problem.)
● The sensor is frozen. (Thawing the area will resolve this probl em.)
In especially cold weather, if a sensor is frozen the screen ma y show an
abnormal display, or objects may not be detected.
● The sensor is covered in any way.
● The vehicle is leaning considerably to one side.
● On an extremely bumpy road, on an incline, on gravel, or on grass.
● The vicinity of the vehicle is noisy due to vehicle horns, moto rcycle
engines, air brakes of large vehicles, or other loud noises pro ducing ultra-
sonic waves.
● There is another vehicle equipped with parking assist sensors i n the vicin-
ity.
● The sensor is coated with a sheet of spray or heavy rain.
● The sensor is drenched with water on a flooded road.
● The vehicle is equipped with a fender pole or wireless antenna.
● Towing eyelets are installed.
● The bumper or sensor receives a strong impact.
● The vehicle is approaching a tall or curved curb.
● The detection range is reduced due to an object such as a sign.
● In harsh sunlight or intense cold weather.
● The area directly under the bumpers is not detected.
● If objects draw too close to the sensor.
● A non-genuine Toyota suspension (lowered suspension, etc.) is i nstalled.
● A backlit license plate is installed.
In addition to the examples above, there are instances in which , because of
their shape, signs and other objects may be judged by a sensor to be closer
than they are.

2994-5. Using the driving support systems
4
Driving
WARNING
■Objects which may not be properly detected
The shape of the object may prevent a sensor from detecting it. Pay partic-
ular attention to the following objects:
● Wires, fences, ropes, etc.
● Cotton, snow and other materials that absorb sound waves
● Sharply-angled objects
● Low objects
● Tall objects with upper sections projecting outwards in the dir ection of your
vehicle
● People may not be detected if they are wearing certain types of clothing.
● Moving objects such as people or animals
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 Toyot a dealer.
● The intuitive parking assist operation display flashes, and a buzzer sounds
when no objects 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 continuously without beeping, except when the buzzer
volume is muted.
● If a display error occurs, first check the sensor.
If the error occurs even if 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 a rea.
Doing so may result in the sensor malfunctioning.

3004-5. Using the driving support systems
The system will operate in situat ions such as the following if an object
is detected in the traveling direction of the vehicle.
◆When traveling at a low speed and the brake pedal is not
depressed, or is depressed late
Intelligent Clearance Sonar (ICS)
: If equipped
If a collision with an object ma y occur due to the vehicle sud-
denly moving forward due to an accidental accelerator pedal
operation, the vehicle moving th e unintended direction due to
the wrong shift position being se lected, or while parking or trav-
eling at low speeds, the sensors detect objects, such as a wall ,
in the traveling direction of t he vehicle, and the system opera tes
to lessen an impact with an object and reduce the resulting dam -
age.
Examples of system operation