Vehicle occupants are pressed into their seats during a rear end collision. The resulting body pressure on the backrest activates the crash-active head restraint* on the front seat, which moves rapidly forwards and upwards at the same time. This movement reduces the distance between the occupant's head and the head rest, thus reducing the risk of head injuries such as brain trauma.

WARNING

Travelling with the head restraints removed or improperly adjusted increases the risk of severe injuries.

• Incorrectly adjusted head restraints could result in death in the event of a collision or accident.
• Incorrectly adjusted head restraints also increase the risk of injury during sudden or unexpected driving or braking manoeuvres.
• The head restraints must always be adjusted according to the occupant's size.

Note
The crash-active head restraints* could also be triggered if a vehicle occupant applies a high level of pressure on the backrest (e.g. by “falling” back into the seat when entering the vehicle) or if pressure is applied to a front seat head restraint from the rear. This accidental activation is, however, not dangerous as the crash-active head restraints will return to the original position immediately and are thus once again ready.