Operating in three stages using camera sensors, it warns the driver visually and audibly. In a second step, it controls the brakes according to the collision danger stage, and in a third stage applies maximum braking force to avoid a collision or minimise damage if a collision is unavoidable.
At speeds over 60 km/h the system alerts the driver about unsafe movements. In case of an unintended lane departure, it will warn the driver and can apply counter steering torque to guide the car back to a safe position.
HBA detects oncoming vehicles as well as vehicles in the same lane ahead at night, and automatically changes from high beam to low beam as appropriate.