Toyota Avalon Hybrid (2019 year). Instruction — part 19

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4-5. Using the driving support systems

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Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating.
● The buzzer sounds faster as the vehicle approaches an obstacle.

When the vehicle comes within the following distance of the
obstacle, the buzzer sounds continuously: Approximately 1.2 ft.
(35 cm).

● When 2 or more obstacles are detected simultaneously, the

buzzer system responds to the nearest obstacle. If one or both
come within 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 obstacles
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

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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 obstacle is detected while the Toyota parking assist monitor or pan-
oramic view monitor is in use, the warning indicator will appear in the upper
part of the screen even if the display setting has been set to off.

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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 at
slow speeds, there is a possibility that the obstacle will come within the sen-
sor’s detection areas before the display is shown and the buzzer 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 “Parking Assist Unavailable Please 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.

■

Customization
Some functions can be customized. (

P. 105, 523)

WARNING

■

When using the intuitive parking assist
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven 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 the brake to
control the vehicle’s speed.

●

Do not install accessories within the sensors’ detection areas.

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4-5. 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 obstacle. 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.

●

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, motorcycle
engines, air brakes of large vehicles, or other loud noises producing ultra-
sonic waves.

●

There is another vehicle equipped with parking assist sensors in 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 obstacles draw too close to the sensor.

●

A non-genuine Toyota suspension (lowered suspension, etc.) is installed.

●

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.

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WARNING

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Obstacles which may not be properly detected
The shape of the obstacle may prevent a sensor from detecting it. Pay par-
ticular 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 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 Toyota dealer.

●

The intuitive parking assist operation display flashes, and a buzzer 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 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 area.
Doing so may result in the sensor malfunctioning.

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The system will operate in situations 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 may occur due to the vehicle sud-
denly moving forward due to an accidental accelerator pedal
operation, the vehicle moving the unintended direction due to
the wrong shift position being selected, or while parking or trav-
eling at low speeds, the sensors detect objects, such as a wall,
in the traveling direction of the vehicle, and the system operates
to lessen an impact with an object and reduce the resulting dam-
age.

Examples of system operation

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◆

When the accelerator pedal is depressed excessively

◆

When the vehicle moves in the unintended direction due to the
wrong shift position being selected

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If a radar sensor detects a vehicle approaching from the right or left at
the rear of the vehicle and a collision may occur, this function will per-
form brake control to reduce the likelihood of an impact with the
approaching vehicle.

■

Examples of system operation
The system will operate in situations such as the following if an
object is detected in the traveling direction of the vehicle.

◆

When reversing, a vehicle is approaching and the brake pedal
is not depressed, or is depressed late

Rear Cross Traffic Auto Brake function

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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.
Select the “Yes” and push

.

When the Intelligent Clearance Sonar is disabled, the ICS OFF indicator
illuminates.
To re-enable the system when it was disabled, select

on the multi-infor-

mation display, select

and then “On”. If disabled using this method, the

system will not be re-enabled by turning the power switch off and then to
ON mode.

Types of sensors

1
2
3
4

Turning the Intelligent Clearance Sonar system on/off

1

2

3

4

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4-5. Using the driving support systems

If the hybrid system output restriction control or brake control oper-
ates, a buzzer will sound and a message will be displayed on the
multi-information display to alert the driver.

Depending on the situation, hybrid system output restriction control will
operate to either limit acceleration or restrict output as much as possible.

Displays and buzzers for hybrid system output restriction con-
trol and brake control

Control

Situation

Multi-information

display

ICS OFF

Indicator

Buzzer

Hybrid system
output restriction
control is operat-
ing (acceleration
restriction)

Acceleration
greater than a
certain amount is
not possible.

“Object Detected
Acceleration
Reduced”

Not illu-
minated

—

Hybrid system
output restriction
control is operat-
ing (output
restricted as
much as possi-
ble)

Stronger-than-
normal brake
operation is nec-
essary.

“Brake!”

Short
beep

Brake control is
operating

Emergency brak-
ing is necessary.

Vehicle stopped
by system opera-
tion

The vehicle has
been stopped by
brake control
operation.

If the accelera-
tor pedal is
depressed:
“Switch to
Brake”
If the accelera-
tor pedal is not
depressed:
“Brake”

Illumi-
nated

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If the Intelligent Clearance Sonar function detects that a collision with
an object is possible, the hybrid system output will be restricted to
restrain any increase in the vehicle speed. (Hybrid system output
restriction control: See A below.)
Additionally, if the accelerator pedal continues to be depressed, the
brakes will be applied automatically to reduce the vehicle speed.
(Brake control: See B below.)

Intelligent Clearance Sonar function

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On

Off

Time

Down

On

Off

Time

On

Off

Time

Down

Up

Accelerator pedal
Brake pedal
Hybrid system output
Braking force

Start of control
High possibility of a collision
Extremely high possibility of a
collision

1
2
3
4

5
6
7

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The Intelligent Clearance Sonar function will operate when
The function will operate when the ICS OFF indicator is not illuminated or
flashing (

P. 297, 305) and all of the following conditions are met:

●

Hybrid system output restriction control
• The Intelligent Clearance Sonar system is enabled.
• The vehicle speed is 10 mph (15 km/h) or less.
• There is an object in the traveling direction of the vehicle and 6 to 13 ft. (2

to 4 m) away.

• The system determines that a stronger-than-normal brake operation is

necessary to avoid a collision.

●

Brake control
• Hybrid system output restriction control is operating.
• The system determines that an emergency brake operation is necessary

to avoid a collision.

■

The Intelligent Clearance Sonar function will stop operating when
The function will stop operating if any of the following conditions are met:

●

Hybrid system output restriction control
• The Intelligent Clearance Sonar system is disabled.
• The collision becomes avoidable with normal brake operation.
• The object is no longer 6 to 13 ft. (2 to 4 m) away in the traveling direction

of the vehicle.

●

Brake control
• The Intelligent Clearance Sonar system is disabled.
• Approximately 2 seconds elapse after the vehicle is stopped by brake

control.

• The brake pedal is depressed after the vehicle is stopped by brake con-

trol.

• The object is no longer 6 to 13 ft. (2 to 4 m) away in the traveling direction

of the vehicle.

■

Detection range of the Intelligent Clearance Sonar function
The detection range of the Intelligent Clearance Sonar function differs from
the detection range of the intuitive parking assist. (

P. 289)

Therefore, even if the intuitive parking assist detects an object and provides a
warning, the Intelligent Clearance Sonar function may not start operating.

■

If the Intelligent Clearance Sonar function has operated
If the vehicle is stopped due to operation of the Intelligent Clearance Sonar
function, the Intelligent Clearance Sonar system will be disabled and the ICS
OFF indicator will illuminate.

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Re-enabling the Intelligent Clearance Sonar system
To re-enable the Intelligent Clearance Sonar system when it is disabled due
to operation of the Intelligent Clearance Sonar function, either enable the sys-
tem again (

P. 297), or turn the power switch off and then back to ON mode.

Additionally, if the object becomes no longer in the traveling direction of the
vehicle or if the traveling direction of the vehicle changes (such as changing
from moving forward to backing up, or from backing up to moving forward),
the system will be re-enabled automatically.

■

Objects that the Intelligent Clearance Sonar function may not detect
The sensors may not be able to detect certain objects, such as the following.

●

Cotton cloth, snow, and other materials that are poor reflectors of ultrasonic
waves.
(People may also not be detected depending on the type of clothing they are
wearing.)

●

Objects which are not perpendicular to the ground, are not perpendicular to
the traveling direction of the vehicle, are uneven or are waving.

●

Low objects

●

Thin objects such as wires, fences, ropes and signposts

●

Objects that are extremely close to the bumper

■

Intuitive parking assist buzzer
Regardless of whether the intuitive parking assist system is enabled or not
(

P. 286), if the Intelligent Clearance Sonar system is enabled (P. 297),

the front or rear sensors detect an object and brake control is performed, the
intuitive parking assist buzzer will sound to notify the driver of the approxi-
mate distance to the object.

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Situations in which the Intelligent Clearance Sonar function may operate
even if there is no possibility of a collision
In some situations such as the following, the Intelligent Clearance Sonar
function may operate even though there is no possibility of a collision.

●

Vehicle surroundings

• When driving toward a banner, flag, low-hanging branch or boom barrier

(such as those used at railroad crossings, toll gates and parking lots).

• When driving on a narrow path surrounded by a structure, such as in a

tunnel or on an iron bridge

• When parallel parking
• When there is a rut or hole in the surface of the road
• When driving on a metal cover (grating), such as those used for drainage

ditches

• When driving on a steep slope
• If a sensor is hit by a large amount of water, such as when driving on a

flooded road

●

Weather
• If a sensor is covered with ice, snow, dirt, etc. (when cleared, the system

will return to normal)

• If heavy rain or water strikes a sensor
• When driving in inclement weather such as fog, snow or a sandstorm

●

Other ultrasonic waves sources
• When vehicle horns, vehicle detectors, motorcycle engines, air brakes of

large vehicles, the clearance sonar of other vehicles or other devices
which produce ultrasonic waves are near the vehicle

• If a sticker or an electronic component, such as a backlit license plate

(especially fluorescent type), fog lights, a fender pole or wireless antenna
is installed near a sensor

• When driving on a narrow road

• When driving on a gravel road or in

an area with tall grass

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●

Changes in the vehicle posture
• If the vehicle is significantly tilted
• If the front of the vehicle is raised or lowered due to the carried load
• If the orientation of a sensor has been changed due to a collision or other

impact

■

If the Intelligent Clearance Sonar function operates unnecessarily such
as at a railroad crossing
Even in the event that the Intelligent Clearance Sonar function operates
unnecessarily, such as at a railroad crossing, brake control will be canceled
after approximately 2 seconds, allowing you to proceed forward and leave the
area, Brake control can also be canceled by depressing the brake pedal.
Depressing the accelerator pedal again will allow you to proceed forward and
leave the area.

■

Situations in which the Intelligent Clearance Sonar Brake function may
not operate properly
In some situations such as the following, this function may not operate prop-
erly.

●

Weather

• If a sensor is covered with ice, snow, dirt, etc. (when cleared, the system

will return to normal)

• If heavy rain or water strikes a sensor
• When driving in inclement weather such as fog, snow or a sandstorm

●

Vehicle surroundings
• When an object that cannot be detected is between the vehicle and a

detected object

• If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in

front of the vehicle or runs out from the side of the vehicle.

• When a sensor or the area around a

sensor is extremely hot or cold

• When strong winds are blowing