Anti-Whiplash System is contained within head restraint.,

"December 29, 2004 07:52 - Designed to reduce impact of whiplash injury in rear-end collisions, anti-whiplash system addresses IIHS concerns by aligning head with cervical spine. It uses electromagnetic actuator to release pre-stressed springs that simultaneously pivot headrest while pushing it forward. Independent of seatback frame, headrest houses 2 coil springs, plastic headrest housing, electromagnetically-activated plate, and wiring."