Head Air Bag
WARNING: This page is about a different car, the 2002 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.
Advanced Head Protection System (AHPS II) or head air bag provides both front and rear passengers with maximum protection against head injury. The system is concealed in the headliner, stretching from the A-pillar to C-pillar and protects the head against forces from the side and against objects penetrating into the vehicle. In the event of an impact, the head air bag deploys between the occupant's head and the sideway of the vehicle.