DS 3: Active Safety Brake with Collision Risk Alert and Intelligent emergency braking assistance / Collision Risk Alert

This function warns the driver that their vehicle is at risk of a collision with the vehicle in front, or with a pedestrian or cyclist present in their traffic lane.

Modifying the alert trigger threshold

This trigger threshold determines the sensitivity with which the function warns of the risk of collision.

The threshold is set via the Driving/Vehicle touch screen menu.

• Select one of the three pre-defined thresholds:

"Far", "Normal" or "Close".

The last threshold selected is memorised when the ignition is switched off.

Operation

Depending on the degree of risk of collision detected by the system and the alert trigger threshold chosen by the driver, several different levels of alert may be triggered and displayed on the instrument panel.

The system takes account of the vehicle dynamics, the speed of your vehicle and the one in front, the environmental conditions and the operation of the vehicle (actions on the pedals, steering wheel, etc.) to trigger the alert at the most relevant moment.

Level 1 (orange): visual alert only, warning that the vehicle in front is very close.

The message "Vehicle close" is displayed.

Level 2 (red): visual and audible alert, warning that a collision is imminent.

The message "Brake!" is displayed.

Level 3: in some cases, a vibration alert in the form of micro-braking can be given, confirming the risk of collision.

Where the speed of your vehicle is too high approaching another vehicle, the first level of alert may not be displayed: the level 2 alert may be displayed directly.

Important: the level 1 alert is not displayed when there is a stationary obstacle or when the "Near" trigger threshold has been selected.