Automatic Emergency Braking

AEB is an advanced emergency braking system which, by using a forward looking camera and a distance sensor, can reduce the consequences of accidents with any vehicles in front.


AEB is only an aid. AEB does not adjust itself to driving conditions or weather.  The driver is always responsible for driving the vehicle in a safe way.
Manipulating the vehicle’s speed signal may cause the AEB to malfunction or be activated incorrectly. 


The forward-looking camera must be calibrated after the windscreen has been replaced.

Collision warning

When AEB detects a collision risk, the system is activated in three steps:

  1. A red warning with acoustic signal is displayed in the instrument cluster.
  2. If the driver does not react and the risk remains, AEB will lightly brake the vehicle.
  3. If no additional response is made and the risk still remains, AEB will brake the vehicle with full force.

The driver can always cancel the warning or braking by:

  • Pressing the AEB switch in the instrument panel
  • Distinctly and quickly depressing the accelerator pedal
  • Depressing the accelerator pedal to the kickdown position

At an early stage, the driver can also cancel the warning by:

  • Depressing the brake pedal
  • Activating the direction indicators

The driver can always take over the control of the brake application by depressing the brake pedal. This cancels the warning and the automatic braking. The more critical the situation, the harder the brake pedal must be depressed.

If the adaptive cruise control is activated, it can give a
collision warning and try to alleviate the situation before AEB warns.

After the vehicle has braked with full force and is stationary, the brakes will hold the vehicle for a few seconds to prevent it from moving. The brakes are released if the driver depresses the brake or accelerator pedal.

Symbol for collision risk

Activation and availability

AEB is activated automatically when the voltage is switched on. The lamp in the switch lights up green.

AEB can be deactivated by using the switch. The lamp in the switch lights up yellow. The switch is spring-loaded and the same switch resets AEB.

AEB is available when:

  • The vehicle speed exceeds 15 km/h

AEB can be limited or deactivated when:

  • The distance sensor is blocked or defective
  • The camera is blocked or defective
  • There is fault in the vehicle’s or trailer’s brake system
  • The vehicle’s air suspension is set far out of the normal
    drive position
  • The vehicle is driven in darkness

Switch for AEB, advanced emergency braking

When AEB is limited, a yellow symbol is displayed together with a message in the instrument cluster. 

The following messages may be displayed:

System malfunction

  • AEB is deactivated due to a fault in the distance sensor.

Reduced functionality

  • AEB is limited and is still partially active. AEB might not brake or warn for a collision in time. 

Symbol for limited AEB

When the distance sensor or camera is blocked, for example by dirt, snow or ice, the respective symbol is displayed together with a message in the instrument cluster.

If the problem is not rectified, the AEB function will be deactivated or become limited.

If the camera is blocked, it may be enough to activate the windscreen wipers. Make sure to keep it clean from dirt, snow and ice.

  1. Blocked Distance Sensor
  2. Blocked Camera


AEB is only an aid and may in certain traffic conditions have trouble identifying vehicles or locating them correctly. AEB can miss a collision risk or be activated without any risk of collision being present.

Different traffic conditions

On the way into or out of curves it may be difficult for AEB to identify the approaching road. AEB can therefore miss to warn for vehicles on the road or incorrectly warn for vehicles on the roadside.


At exits or slip roads and when vehicles are moving on the hard shoulder, it may be difficult for AEB to identify vehicles ahead.

At exits or slip roads, and on the hard shoulder

A vehicle that changes to your lane just in front of your vehicle cannot be identified by AEB until it gets into the identification zone. 

Lane change