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Toyota Avalon (2019 year). Manual - part 19

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4-5. Using the driving support systems

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Off

Time

Down

Off

Time

Off

Time

Down

Accelerator pedal
Brake pedal
Engine 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 Rear Cross Traffic Auto Brake function will operate when
The function will operate when the ICS OFF indicator is not illuminated or
flashing (

P. 277, 285) and all of the following conditions are met:

●

Engine 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
• Engine 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:

●

Engine 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 (

P. 259).

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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4-5. Using the driving support systems

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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. 277), or turn the engine switch off and then back to IGNITION ON

mode. When the function is disabled, the ICS OFF indicator will illuminate.
(

P. 79)

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. 252), 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

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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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4-5. Using the driving support systems

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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. 254

• 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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

Vehicles without AVS (Adaptive Variable Suspension System)

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.

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

Vehicles with AVS (Adaptive Variable Suspension System)

Normal mode/Custom mode

• Normal mode

Use for normal driving.

While in Eco drive mode, Sport mode or Custom mode press the “NOR-
MAL/CUSTOM” switch to change the driving mode to normal mode.

• Custom mode

Allows you to drive with the following functions set to your pre-
ferred settings.
Custom mode settings can only be changed on the drive mode
customization display of the audio system screen.
(Displaying the drive mode customization display:

P. 492)

When the “NORMAL/CUSTOM” switch is pressed, the “CUSTOM” indi-
cator comes on in the multi-information display.

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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

• SPORT S mode

Controls the transmission and engine to provide quick, powerful
acceleration. This mode is suitable for when agile driving
response is desired, such as when driving on roads with many
curves.

When not in SPORT S mode, if the “SPORT S/S+” switch is pressed,
the “SPORT S” indicator will come on in the multi-information display.

• SPORT S+ mode

Helps to ensure steering performance and driving stability by
simultaneously controlling the steering and suspension in addi-
tion to the transmission and engine. Suitable for sportier driving.

When in SPORT S mode, if the “SPORT S/S+” switch is pressed, the
“SPORT S+” indicator will come on in the multi-information display.

Function

Setting

Powertrain

Normal

Power

Eco

Chassis

Normal

Sport

Air conditioning system

Normal

Eco

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4-5. Using the driving support systems

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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. 310). To improve air

conditioning performance, adjust the fan speed or turn off Eco drive mode.

■

Automatic deactivation of sport mode and custom mode
If the engine switch is turned off after driving in sport mode or custom mode,
the drive mode will be changed to normal mode.

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◆

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

◆

Hill-start assist control

Helps to reduce the backward movement of the vehicle when start-
ing on an uphill

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

◆

EPS (Electric Power Steering)

Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel

◆

Adaptive Variable Suspension System (if equipped)

By independently controlling the damping force of the shock
absorbers for each of the 4 wheels according to the road and driv-
ing conditions, this system helps riding comfort with superior vehi-
cle stability, and helps good vehicle posture (

P. 295)

The slip indicator light will flash
while the TRAC/VSC systems are
operating.

If the vehicle gets stuck in mud, dirt or snow, the TRAC system may

reduce power from the engine 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

“Traction Control Turned Off” will
be shown on the multi-information
display.

Press

again to turn the sys-

tem back on.

When the TRAC/VSC 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. 227)

■

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 engine 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.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

■

EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.

■

Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:

●

When the engine switch is turned off

●

If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.

■

Secondary Collision Brake operating conditions
The vehicle speed is approximately 6 mph (10 km/h) or more and the airbag
sensor detects a collision. (The Secondary Collision Brake will not operate
when the vehicle speed is below approximately 6 mph [10km/h].)

■

Secondary Collision Brake automatic cancellation
The Secondary Collision Brake is automatically canceled in the following situ-
ations:

●

The vehicle speed drops below approximately 6 mph (10 km/h)

●

A certain amount of time elapses during operation

●

The accelerator pedal is depressed a large amount

■

Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle
and turn the engine off. The EPS system should return to normal within 10
minutes.

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WARNING

■

The ABS does not operate effectively when

●

The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).

●

The vehicle hydroplanes while driving at high speed on wet or slick roads.

■

Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, especially in the
following situations:

●

When driving on dirt, gravel or snow-covered roads

●

When driving with tire chains

●

When driving over bumps in the road

●

When driving over roads with potholes or uneven surfaces

■

TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and power may be
lost.

■

Hill- start assist control does not operate effectively when

●

Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered with ice.

●

Unlike the parking brake, hill-start assist control is not intended to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.

■

When the TRAC/VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.

■

When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC systems off unless necessary.

■

Secondary Collision Brake
Do not overly rely on the Secondary Collision Brake. This system is
designed to help reduce the possibility of further damage due to a second-
ary collision, however, that effect changes according to various conditions.
Overly relying on the system may result in death or serious injury.

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WARNING

■

Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires
are installed on the vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.

■

Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause a system to malfunction.

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