Automatic Emergency Braking (AEB)

It uses radar, camera or both. Many systems detect pedestrians and cyclists. It is mandatory on new cars in many regions. At lower speeds it can avoid collisions completely; at higher speeds it usually reduces the impact speed. Some systems also work when reversing or at junctions.

The system warns first, then pre-fills the brakes and finally brakes fully if needed.

False activations can occur, for example with metal objects or shadows. Keep sensors clean and calibrated.