Pre sense basic and pre sense front can take action to protect the occupants in certain hazardous conditions, subject to the limitations of the system.
Because the different on-board systems are networked, pre sense basic can detect critical situations and take action to prepare the occupants for a potential impending collision.
Pre sense front uses a radar sensor and video camera*. It remains active (subject to the limitations of the system) even when the adaptive cruise control* is switched off.