Get Safety -> Active City Brake Guide for Citroen Ds3 SUV Second Generation (2018-2025)

153

Safety

Active City Brake

Active City Brake is a driving assistance

system that aims to avoid a frontal collision

or reduce the speed of an impact if the driver

does not react sufficiently (inadequate brake

application).

Principle

Conditions for activation

Active City Brake only operates if the following

conditions are met:

●

ignition on,

the vehicle is in a forward gear,

speed is between about 3 and 18 mph

(5 and 30 km/h),

●

the braking assistance systems (ABS,

EBFD, emergency braking assistance) are

not faulty,

the trajectory control systems (ASR, DSC)

are not deactivated or faulty,

the vehicle is not in a tight corner,

the system has not been triggered during

the previous 10 seconds.

This system is designed to improve

driving safety.

It remains the driver's responsibility to

continuously monitor the state of the

traffic and to assess the distances and

relative speeds of other vehicles.

Active City Brake can in no

●

Using a laser sensor located at the top of the

windscreen, this system detects a vehicle

running in the same direction or stationary

ahead of your vehicle.

circumstances replace the need for

vigilance on the part of the driver.

When necessary, the vehicle's braking system

is operated automatically to avoid a collision

with the vehicle ahead.

Never look at the laser sensor through

an optical instrument (magnifying glass,

microscope...) at a distance of less than

10 centimetres: risk of eye injury.

Automatic braking occurs later than if

done by the driver, so as to intervene

only when there is a high risk of

collision.

Operation

deactivation

When your vehicle is too close to or

approaches the vehicle ahead too quickly the

system automatically applies the brakes to

avoid a collision.

The system is deactivated in the vehicle

configuration menu, accessible with the ignition on.

Its state is memorised when the ignition is

switched off.

The triggering of the system may cause

the engine to stall, unless the driver

depresses the clutch pedal quickly

enough during automatic braking.

You are then alerted by the display of a

message.

The brake lamps on your vehicle come on to

warn other road users.

When the system is deactivated, a

message is displayed every time the

ignition is switched on, to warn you.

During automatic braking, the driver

can always obtain a higher rate of

deceleration than that controlled by the

system, by pressing firmly on the brake

pedal.

The collision can be avoided automatically if the

difference in speed between your vehicle and the

vehicle ahead does not exceed 9 mph (15 km/h).

Above this threshold, the system will do what

is possible to avoid or reduce the accident by

lowering the speed of impact.

The automatic braking may bring the vehicle to

a complete stop if the situation requires it.

In this case, the vehicle is held stationary

temporarily (for about 1.5 seconds) to allow

the driver to take back control by pressing the

brake pedal.

After an impact, the system is

automatically put out of service: it no

longer operates.

You must go to a CITROËN dealer or a

qualified workshop to have the system

made operational again.

155

Safety

Operating limits

The system only detects vehicles that are

stationary or moving in the same direction as

your vehicle.

With the monochrome screen C

With the touch screen tablet

It does not detect small vehicles

(bicycles, motorcycles), pedestrians or

animals, nor non-reflective stationary

objects.

F

Press the MEnU button for access to the

main menu.

F

Select "Personalisation-Configuration".

Select "define vehicle parameters".

Select "driving assistance".

Select "Automatic emergency braking:

OFF" or "Automatic emergency braking:

On".

Press the "7" or "8" button to check or

uncheck the box and activate or deactivate

the system respectively.

Press the "5" or "6" button, then the OK

button to select the "OK" box and confirm

or the Back button to cancel.

The system is not triggered or is interrupted if

the driver:

-

accelerates strongly

or turns the steering wheel suddenly

(avoiding manoeuvre).

F

Press the "MEnU" button.

Select the "driving" menu.

In the secondary page, select "Vehicle

settings".

Select "driving assistance" tab.

Check or uncheck the "Automatic

emergency braking" box to activate or

deactivate the system.

F

Confirm.

Operating faults

Sensor fault

System fault

In difficult weather conditions (very

heavy rain, snow, fog, hail...), braking

distances increase, which can reduce

the ability of the system to avoid a

collision.

The operation of the laser sensor may suffer

interference from accumulations of dirt or

misting of the windscreen. In this case you are

warned by the display of a message.

Use the windscreen demisting and regularly

clean the area of the windscreen in front of the

sensor.

In the event of a malfunction of the system, you

are warned by an audible signal and the display

of the message "Automatic braking system

fault".

Have the system checked by a CITROËN

dealer or a qualified workshop.

The driver must therefore remain

particularly vigilant.

Do not stick or otherwise fix any object on

the windscreen in front of the sensor.

In the event of an impact to the

windscreen at the sensor, deactivate

the system and contact a CITROËN

dealer or a qualified workshop to have

your windscreen replaced.

Never leave accumulations of snow or

any object projecting above the bonnet

or in front of the roof: this might fall into

the field of vision of the sensor and

generate a detection.

Never try to remove, adjust or test

the sensor.

Only a CITROËN dealer or a qualified

workshop is able to work on the system.

When towing a trailer or when the

vehicle is being towed, the system must

be deactivated.

Safety -> Active City Brake for Your Citroen Ds3 SUV Second Generation (2018-2025)

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