Toyota Avalon Hybrid (2019 year). Manual — part 20
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4-5. Using the driving support systems
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●
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
●
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 a 12-volt 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 “ICS Unavailable” is displayed on the multi-information display and
the ICS OFF indicator is flashing
●
A sensor may be covered with ice, snow, dirt, etc. Remove the ice, snow,
dirt, etc., from the sensor to return the system to normal.
Also, due to ice forming on a sensor at low temperatures, a warning mes-
sage may be displayed or the sensor may not be able to detect an object.
Once the ice melts, the system will return to normal.
●
If this message continues to be displayed even after cleaning the sensor, or
is displayed even though the sensor is clean, have the vehicle inspected by
your Toyota dealer.
●
Initialization may not have been performed after a 12-volt battery terminal
was disconnected and reconnected. Initialize the system. (
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4-5. Using the driving support systems
WARNING
■
Limitations of the Intelligent Clearance Sonar system
Do not overly rely on the system, as doing so may lead to an accident.
●
The driver is solely responsible for safe driving. Always drive carefully, tak-
ing care to observe your surroundings. The Intelligent Clearance Sonar
system is designed to provide support to lessen the severity of collisions.
However, it may not operate in some situations.
●
The Intelligent Clearance Sonar system is not designed to stop the vehicle
completely. Additionally, even if the system has stopped the vehicle, it is
necessary to depress the brake pedal immediately as brake control will be
canceled after approximately 2 seconds.
■
To ensure the Intelligent Clearance Sonar system can operate properly
Observe the following precautions regarding the sensors (
to do so may cause a sensor to not operate properly, and may cause an
accident.
●
Do not modify, disassemble or paint the sensors.
●
Do not replace a sensor with a part other than a genuine part.
●
Do not subject a sensor or its surrounding area to a strong impact.
●
Do not damage the sensors, and always keep them clean.
Observe the following precautions regarding the radar sensors (
Failure to do so may cause a radar sensor to not operate properly, and may
cause an accident.
●
Do not modify, disassemble or paint the sensors.
●
Do not replace a radar sensor with a part other than a genuine part.
●
Do not subject a radar sensor or its surrounding area to a strong impact.
●
Do not damage the radar sensors, and always keep the radar sensors and
their surrounding area on the bumper clean.
■
Handling the suspension
Do not modify the suspension, as changes to the height or inclination of the
vehicle may prevent the sensors from detecting objects correctly or cause
the system to not operate or operate unnecessarily.
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NOTICE
■
To prevent the system from malfunctioning
●
If the area around a sensor is subjected to an impact, the system may not
operate properly due to the sensor being misaligned. Have the vehicle
inspected by your Toyota dealer.
●
When using a high pressure washer to wash the vehicle, do not spray the
sensors directly, as doing so may cause a sensor to malfunction.
●
When using steam to clean the vehicle, do not direct steam too close to
the sensors as doing so may cause a sensor to malfunction.
■
To prevent a radar sensor from malfunctioning
●
If the area around a radar sensor is subjected to an impact, the system
may not operate properly due to a sensor malfunction. Have the vehicle
inspected by your Toyota dealer.
●
Observe the radar sensor handling precautions. (
■
To prevent unnecessary operation of the Intelligent Clearance Sonar
system
In the following situations, disable the Intelligent Clearance Sonar system
as the system may operate even though there is no possibility of a collision.
●
When inspecting the vehicle using a chassis roller, chassis dynamo or free
roller
●
When loading the vehicle onto a boat, truck or other transport vessel
●
If the suspension has been modified or tires of a size other than specified
are installed
●
If the front of the vehicle is raised or lowered due to the carried load
●
When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or
snow plow
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4-5. Using the driving support systems
If the Rear Cross Traffic Auto Brake function detects that a collision
with an approaching vehicle is possible, the hybrid system output will
be restricted to restrain any increase in 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.)
Rear Cross Traffic Auto Brake 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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4-5. Using the driving support systems
■
The Rear Cross Traffic Auto Brake 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 with Rear Cross Traffic Auto Brake is
enabled.
• The vehicle speed is 10 mph (15 km/h) or less.
• Vehicles which are approaching from the right or left at the rear of the
vehicle at a traveling speed of less than approximately 5 mph (8 km/h)
• The shift lever is in R.
• The system determines that a stronger than normal brake operation is
necessary to avoid a collision with an approaching vehicle.
●
Brake control
• Hybrid system output restriction control is operating.
• The system determines that an emergency brake operation is necessary
to avoid a collision with an approaching vehicle.
■
The Rear Cross Traffic Auto Brake 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 with Rear Cross Traffic Auto Brake is
disabled.
• The collision becomes avoidable with normal brake operation.
• A vehicle is no longer approaching from the right or left at the rear of the
vehicle.
●
Brake control
• The Intelligent Clearance Sonar with Rear Cross Traffic Auto Brake 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.
• A vehicle is no longer approaching from the right or left at the rear of the
vehicle.
■
Detection area of the Rear Cross Traffic Auto Brake function
The detection area of the Rear Cross Traffic Auto Brake function differs from
the detection area of the RCTA function (
Therefore, even if the RCTA function detects a vehicle and provides an alert,
the Rear Cross Traffic Auto Brake function may not start operating.
■
If the Rear Cross Traffic Auto Brake function has operated
If the vehicle is stopped due to operation of the Rear Cross Traffic Auto Brake
function, the Rear Cross Traffic Auto Brake function will be disabled and the
ICS OFF indicator will illuminate.
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Re-enabling the Rear Cross Traffic Auto Brake function
To re-enable the Rear Cross Traffic Auto Brake function when it is disabled
while it is operating, either enable the Intelligent Clearance Sonar system
again (
P. 297), or turn the power switch off and then back to ON mode.
When the function is disabled, the ICS OFF indicator will illuminate. (
If there is no longer a vehicle approaching from the right or left at the rear of
the vehicle when backing up, or if the traveling direction of the vehicle
changes (such as changing from backing up to moving forward), the system
will be re-enabled automatically. When the function is re-enabled, the ICS
OFF indicator will turn off.
■
Conditions under which the Rear Cross Traffic Auto Brake function will
not detect a vehicle
The Rear Cross Traffic Auto Brake function is not designed to detect the fol-
lowing types of vehicles and/or objects.
●
Vehicles approaching from directly behind
●
Vehicles backing up in a parking space next to your vehicle
●
Guardrails, walls, signs, parked vehicles and similar stationary 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.
■
RCTA function buzzer
Regardless of whether the RCTA function is enabled or not (
P. 272), if the
Rear Cross Traffic Auto Brake function is enabled and brake control is per-
formed, a buzzer will sound to notify the driver.
●
Vehicles that the sensors cannot detect
due to obstructions
●
Vehicles which suddenly accelerate or
decelerate near your vehicle
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4-5. Using the driving support systems
■
Situations in which the system may operate even though there is no
possibility of a collision
In some situations such as the following, the Rear Cross Traffic Auto Brake
function may operate even though there is no possibility of a collision.
●
When there are spinning objects near your vehicle such as the fan of an air
conditioning unit
●
When water is splashed or sprayed toward the rear bumper, such as from a
sprinkler
●
When the parking space faces a street
and vehicles are being driven on the
street
●
When a detected vehicle turns while
approaching the vehicle
●
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
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Situations in which the Rear Cross Traffic Auto Brake function may not
operate properly
In some situations such as the following, this function may not operate prop-
erly.
●
Objects and vehicles which the radar sensors are not designed to detect
• Stationary objects
• Vehicles which are moving away from your vehicle
• Pedestrians, motorcycles, bicycles, etc.
*
• Objects which are extremely close to a radar sensor
• Vehicles which are approaching from the right or left at the rear of the
vehicle at a traveling speed of less than approximately 5 mph (8 km/h)
• Vehicles which are approaching from the right or left at the rear of the
vehicle at a traveling speed of more than approximately 15 mph (24 km/h)
*
: Depending on conditions, detection of a vehicle and/or object may occur.
●
Situations in which the radar sensors may not be able to detect an object
• When a sensor or the area around a sensor is extremely hot or cold
• If the rear bumper is covered with ice, snow, dirt, etc.
• If heavy rain or water strikes the vehicle
• When the detection area of a radar sensor is obstructed by an adjacent
vehicle
• If the vehicle is significantly tilted
• When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or
snow plow
• If the suspension has been modified or tires of a size other than specified
are installed
• If the front of the vehicle is raised or lowered due to the carried load
• 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 radar sensor
• If the orientation of a radar sensor has been changed due to a collision or
other impact or removal and installation
• When multiple vehicles are approaching with only a small gap between
each vehicle
• When a vehicle is approaching at high speed
●
Situations in which the radar sensor may not detect a vehicle
• When a vehicle approaches from the
right or left at the rear of the vehicle
while you are turning while backing
up
• When turning while backing up
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■
Handling the radar sensors
P. 274
• When backing out of a shallow angle
parking spot
• Vehicles that the sensors cannot
detect due to obstructions
• When backing up on a slope with a
sharp change in grade
• When a vehicle turns into the detec-
tion area
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Normal mode
Use for normal driving.
While in Eco drive mode or Sport mode, press the “NORMAL” switch to
change the driving mode to normal mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during
trips that involve frequent accelerating.
When the “ECO” switch is pressed, the “ECO MODE” indicator comes on
in the multi-information display.
Sport mode
Use sport mode when increased acceleration response and precise
handling is desired, for example, when driving on mountain roads.
When the “SPORT” switch is pressed, the “SPORT” indicator comes on in
the multi-information display.
Driving mode select switches
The driving modes can be selected to suit driving condition.
1
2
3
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4-5. Using the driving support systems
■
Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the
air conditioning system to enhance fuel efficiency (
P. 332). To improve air
conditioning performance, adjust the fan speed or turn off Eco drive mode.
■
Auto Glide Control
When Auto Glide Control operates, the AGC indicator light will illuminate.
●
Auto Glide Control may not operate in the following situations:
• When the brake pedal is depressed
• When a shift position other than D is selected
• When the vehicle speed is approximately 10 mph (15 km/h) or lower
• When the vehicle is accelerating on a downward slope
• When the PCS (Pre-Collision System) is operating
• When the dynamic radar cruise control with full-speed range is operating
• When the Intelligent Clearance Sonar system is operating
• When the TRAC or VSC system is operating
• When the TRAC or VSC system is disabled by pressing the VSC OFF
switch
■
Sport mode automatic deactivation
Sport mode is automatically deactivated if the power switch is turned off after
driving in sport mode.
●
While driving in Eco drive mode with D
selected, releasing the accelerator
pedal will activate Auto Glide Control
under certain conditions. (Auto Glide
Control may activate before the acceler-
ator pedal is fully released.)
When Auto Glide Control operates, the
electric motor (traction motor) will be
controlled, reducing the deceleration
force and allowing the vehicle to coast,
enhancing fuel economy.
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◆
ECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
◆
ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly,
or if the brakes are applied while driving on a slippery road surface
◆
Brake assist
Generates an increased level of braking force after the brake pedal
is depressed when the system detects a panic stop situation
◆
VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces.
◆
Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery
road surfaces by controlling steering performance.
◆
Secondary Collision Brake
When the airbag sensor detects a collision, the brakes and brake
lights are automatically controlled to reduce the vehicle speed and
that helps reduce the possibility of further damage due to a second-
ary collision
◆
TRAC
(Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
Driving assist systems
To keep driving safety and performance, the following systems
operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehi-
cle.
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4-5. Using the driving support systems
◆
Hill-start assist control
Helps to reduce the backward movement of the vehicle when start-
ing on an uphill
◆
EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
The slip indicator light will flash
while the TRAC/VSC/ABS sys-
tems are operating.
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may
reduce power from the hybrid system to the wheels. Pressing
to
turn the system off may make it easier for you to rock the vehicle in
order to free it.
To turn the TRAC system off,
quickly press and release
.
The “Traction Control Turned Off”
will be shown on the multi-informa-
tion display.
Press
again to turn the sys-
tem back on.
When the TRAC/VSC/ABS systems are operating
Disabling the TRAC system
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Turning off both TRAC and VSC systems
To turn the TRAC and VSC systems off, press and hold
for more than 3
seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “Traction Control Turned
Off” will be shown on the multi-information display
*
.
Press
again to turn the systems back on.
*
: Pre-collision brake assist and pre-collision braking will also be disabled.
The pre-collision system warning light will come on and the message will
be shown on the multi-information display. (
P. 246)
■
When the message is displayed on the multi-information display show-
ing that TRAC has been disabled even if
has not been pressed
TRAC cannot be operated. Contact your Toyota dealer.
■
Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will
operate:
●
The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
●
The vehicle is stopped
●
The accelerator pedal is not depressed
●
The parking brake is not engaged
■
Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
●
The shift lever is shifted to P or N
●
The accelerator pedal is depressed
●
The parking brake is engaged
●
2 seconds at maximum elapsed after the brake pedal is released
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■
Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC,
and hill-start assist control systems
●
A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the hybrid system is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
●
Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
■
ECB brake operation
Braking power may be stronger than normal for a short time after the hybrid
system is started.
■
ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
●
Operating sound heard from engine compartment when the brake pedal is
operated.
●
Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
●
Operating sound heard from the engine compartment when one or two min-
utes passed after the stop of the hybrid system.
■
EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
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