Get Driving -> Using the driving support systems-Dynamic radar cruise control Guide for Toyota Corolla 4 Door 2023

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4-5. Using the driving support systems

Dynamic radar cruise

control

No Turn On Red

Stop

This dynamic radar cruise

control detects the pres-

ence of vehicles ahead,

determines the current vehi-

cle-to-vehicle distance, and

operates to maintain a suit-

able distance from the vehi-

cle ahead. The desired

vehicle-to-vehicle distance

can be set by operating the

vehicle-to-vehicle distance

switch.

Yield

Warning

 Depending on the specifica-

tions of the vehicle, signs may

be displayed overlapping.

Use the dynamic radar

cruise control only on high-

ways and expressways.

WARNING

(U.S.A.)

Duplicate display

example

■For safe use

●Driving safely is solely the

responsibility of the driver. Do

not overly rely on this system,

and pay careful attention to the

surrounding conditions in order

to ensure safe driving.

(Canada)

Changing RSA settings

●The dynamic radar cruise con-

trol provides driving assistance

to reduce the driver’s burden.

However, there are limitations to

the assistance provided.

The following settings of the

RSA can be changed through

customize settings. (P.412)

Read the following items carefully.

Do not overly rely on this system

and always drive carefully.

Conditions under which the sys-

tem may not operate correctly:

P .225

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4-5. Using the driving support systems

The dynamic radar cruise control

WARNING

determines whether the distance

between the driver’s own vehicle

and a designated preceding vehi-

cle is within a set range. It is not

capable of making any other type

of judgement. Therefore, it is

absolutely necessary for the

driver to remain vigilant and to

determine whether or not there is

a possibility of danger.

●Set the speed appropriately

according to the speed limit,

traffic flow, road conditions,

weather conditions, etc. The

driver is responsible for confirm-

ing the set speed.

●Even if the system is operating

correctly, the condition of a pre-

ceding vehicle as recognized by

the driver and detected by the

system may differ. Therefore, it

is necessary for the driver to

pay attention, assess risks, and

ensure safety. Over-reliance on

this system to drive the vehicle

safely may lead to an accident

resulting in death or serious

injury.

●Details of support provided for

the driver’s operation

The dynamic radar cruise control

does not include functions which

will prevent or avoid collisions

with vehicles ahead of your vehi-

cle. Therefore, if there is ever any

possibility of danger, the driver

must take immediate and direct

control of the vehicle and act

appropriately in order to ensure

safety.

■Precautions for the driving

assist systems

Observe the following precau-

tions, as there are limitations to

the assistance provided by the

system. Over-reliance on this sys-

tem may lead to an accident

■Situations in which the

dynamic radar cruise control

should not be used

Do not use the dynamic radar

cruise control in the following situ-

ations. As the system will not be

able to provide appropriate con-

trol, using it may lead to an acci-

dent resulting in death or serious

injury.

resulting in death or serious injury.

●Details of support provided for

the driver’s vision

The dynamic radar cruise control

is only intended to help the driver

in determining the distance

between the driver’s own vehicle

and a designated preceding vehi-

cle. It is not a system which allows

for careless or inattentive driving,

and is not a system which assists

in poor visibility conditions.

●Roads where there are pedes-

trians, cyclists, etc.

●When driving on a highway or

expressway entrance or exit

●When the approach warning

sounds frequently

The driver must pay attention to

their surroundings, even when the

vehicle stops.

●Situations in which the sensors

may not operate properly:

P.188

●Details of support provided for

the driver’s judgement

●Situations in which the lane may

not be detected: P.189

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221

4-5. Using the driving support systems

Basic functions

Constant speed cruising:

When there are no vehicles ahead

The vehicle drives at the speed set by the driver.

If the set vehicle speed is exceeded while driving down a hill, the set vehicle

speed display will blink and a buzzer will sound.

Deceleration and follow-up cruising

When a preceding vehicle driving slower than the set vehicle

speed is detected

When a vehicle is detected driving ahead of your vehicle, the vehicle auto-

matically decelerates and if a greater reduction in vehicle speed is neces-

sary, the brakes are applied (the stop lights will come on at this time). The

vehicle is controlled to maintain the vehicle-to-vehicle distance set by the

driver, in accordance with changes in the speed of the preceding vehicle. If

vehicle deceleration is not sufficient and the vehicle approaches the vehicle

ahead, the approach warning will sound.

Acceleration

When there are no longer any preceding vehicles driving slower

than the set vehicle speed

The vehicle accelerates until the set vehicle speed is reached and then

resumes constant speed cruising.

Starting off:

If a preceding vehicle stops, the vehicle will also stop (controlled

stop). After the preceding vehicle starts off, pressing the “RES”

switch or depressing the accelerator pedal will resume follow-up

cruising (start off operation). If a start off operation is not per-

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4-5. Using the driving support systems

formed, the controlled stop will continue.

System Components

Using the dynamic radar

cruise control

■ Meter display

Setting the vehicle speed

1 Press the driving assist mode

select switch to select

dynamic radar cruise control.

The dynamic radar cruise control

indicator will illuminate.

Multi-information display

Set vehicle speed

Indicators

■ Switches

2 Using the accelerator pedal,

accelerate or decelerate to

the desired vehicle speed

(approximately 20 mph [30

km/h] or more), and press the

driving assist switch to set

the set vehicle speed.

Driving assist mode select

switch

The set vehicle speed will be dis-

played on the multi-information dis-

play.

Driving assist switch

“+” switch / “RES” switch

“-” switch

The vehicle speed at the moment

the switch is released will be the set

Cancel switch

Vehicle-to-vehicle distance

switch

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4-5. Using the driving support systems

vehicle speed.

each time the switch is pressed

Long press adjustment: Increases

or decreases in 1 mph (1.6 km/h)

increments continuously while the

switch is pressed and held

 For Canada

Short press adjustment: By 1 km/h

(0.6 mph) or 1 mph (1.6 km/h) each

time the switch is pressed

Long press adjustment: Increases

or decreases in 5 km/h (3.1 mph) or

5 mph (8 km/h) increments continu-

ously while the switch is pressed

and held

Adjusting the set vehicle

speed

 Adjusting the set vehicle

speed using the switches

The set vehicle speed adjustment

increment can be changed through

a customize setting.

To change the set vehicle

speed, press the “+” or “-” switch

until the desired speed is dis-

played.

 Increasing the set vehicle

speed using the accelerator

pedal

1 Depress the accelerator

pedal to accelerate the vehi-

cle to the desired vehicle

speed.

2 Press the “+” switch.

Canceling/resuming con-

trol

1 Increase set vehicle speed

2 Decrease set vehicle speed

Short press adjustment: Press the

switch

Long press adjustment: Press and

hold the switch until the desired set

vehicle speed is reached.

The set vehicle speed will

increase or decrease as follows:

 For the U.S.A.

Short press adjustment: Increases

or decreases by 1 mph (1.6 km/h)

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4-5. Using the driving support systems

(If the vehicle has been stopped by

system control, depressing the

brake pedal will not cancel control.)

1 Press the cancel switch or

driving assist switch to cancel

control.

2 Press the “RES” switch to

Control will also be canceled if the

brake pedal is depressed.

resume control.

Changing the vehicle-to-vehicle distance

Each time the switch is pressed, the vehicle-to-vehicle distance set-

ting will change as follows:

If a preceding vehicle is detected, the preceding vehicle mark will be dis-

played.

Illustration

Number

Vehicle-to-vehicle

distance

Approximate Distance (Vehicle

Speed: 60 mph [100 km/h])

Extra long

Long

Approximately 200 ft. (60 m)

Approximately 145 ft. (45 m)

Approximately 100 ft. (30 m)

Approximately 85 ft. (25 m)

Medium

Short

The actual vehicle-to-vehicle distance varies in accordance with the vehicle

speed. Also, when the vehicle is stopped by system control, it will be

stopped at a certain distance from the preceding vehicle, depending on the

situation, regardless of the setting.

speed will be approximately 20

■Operating conditions

●The shift lever is in D.

mph (30 km/h).

• If the vehicle speed is set while

driving at a speed that exceeds

the system's upper limit, the set

vehicle speed will be the system's

upper limit.

●The desired set speed can be set

when the vehicle speed is approx-

imately 20 mph (30 km/h) or more.

• If the vehicle speed is set while

driving at below approximately 20

mph (30 km/h), the set vehicle

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4-5. Using the driving support systems

■Accelerating after setting the

vehicle speed

The parking brake may be actived

automatically.

As with normal driving, acceleration

can be performed by depressing the

accelerator pedal. After accelerat-

ing, the vehicle will return to the set

vehicle speed. However, while in

vehicle-to-vehicle distance control

mode, the vehicle speed may

decrease to below the set vehicle

speed in order to maintain the dis-

tance from the preceding vehicle.

●Situations in which some or all of

the functions of the system cannot

operate: P.189

■Dynamic radar cruise control

system warning messages and

buzzers

For safe use: P.184

■Preceding vehicles that the sen-

sor may not detect correctly

■When the vehicle is stopped by

system control during follow-up

cruising

In the following situations, depend-

ing on the conditions, if the system

cannot provide sufficient decelera-

tion or acceleration is necessary,

operate the brake pedal or accelera-

tor pedal.

●When the “+RES” switch is

pressed while the vehicle is

stopped by system control, if the

preceding vehicle starts off within

approximately 3 seconds, fol-

low-up cruising will resume.

As the sensor may not be able to

correctly detect these types of vehi-

cles, the approach warning

(P .226) may not operate.

●If the preceding vehicle starts off

within approximately 3 seconds of

the vehicle being stopped by sys-

tem control, follow-up cruising will

resume.

●When a vehicle cuts in front of

your vehicle or changes lanes

away from your vehicle extremely

slowly or quickly

■Automatic cancellation of vehi-

cle-to-vehicle distance control

mode

●When changing lanes

●When a preceding vehicle is driv-

ing at a low speed

In the following situations, vehi-

cle-to-vehicle distance control mode

will be canceled automatically:

●When a vehicle is stopped in the

same lane as the vehicle

●When a motorcycle is traveling in

the same lane as the vehicle

●When the brake control or output

restriction control of a driving sup-

port system operates

(For example: Pre-Collision Sys-

tem, drive-start control)

■Conditions under which the

system may not operate cor-

rectly

●When the parking brake has been

In the following situations, operate

the brake pedal (or accelerator

pedal, depending on the situation)

as necessary.

operated

●When the vehicle is stopped by

system control on a steep incline

As the sensor may not be able to

correctly detect a vehicle, the sys-

tem may not operate properly.

●When any of the following are

detected while the vehicle is

stopped by system control:

• The driver’s seat belt is unfas-

tened

• The driver’s door is opened

• Approximately 3 minutes have

elapsed since the vehicle was

stopped

●When a preceding vehicle brakes

suddenly

●When changing lanes at low

speeds, such as in a traffic jam

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Approach warning

4-5. Using the driving support systems

vehicle speed will then return to the

set vehicle speed.

In situations where the vehicle

approaches a preceding vehicle

and the system cannot provide

sufficient deceleration, such as

if a vehicle cuts in front of the

vehicle, a warning display will

flash and a buzzer will sound to

alert the driver. Depress the

brake pedal to ensure appropri-

ate vehicle-to-vehicle distance.

In situations where vehicle-to-vehi-

cle distance control needs to oper-

ate, such as when a preceding

vehicle cuts in front of your vehicle,

the curve speed reduction function

will be canceled.

■ Warnings may not occur

when

In the following situations, the

warning may not operate even

though the vehicle-to-vehicle

distance is short.

■Situations in which the curve

speed reduction function may

not operate

 When the preceding vehicle is

traveling at the same speed

or faster than your vehicle

In situations such as the following,

the curve speed reduction function

may not operate:

●When the vehicle is being driven

 When the preceding vehicle is

traveling at an extremely low

speed

around a gentle curve

●When the accelerator pedal is

being depressed

●When the vehicle is being driven

around an extremely short curve

 Immediately after the vehicle

speed has been set

 When the accelerator pedal is

Support for lane change

depressed

If your vehicle is being driven at

approximately 50 mph (80 km/h)

or more and a lane change to

the passing lane is performed,

when the turn signal lever is

operated and the lane is

changed, the vehicle will accel-

erate up to the set speed to

assist in overtaking.

Curve speed reduction

function

When a curve is detected, the

vehicle speed will begin being

reduced. When the curve ends,

the vehicle speed reduction will

end.

Depending on the situation, the

The system’s recognition of which

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