2010 Nissan Altima Owner's Manual - Page 33

Adjust the Active Head Restraints properly as described in this section. LRS0891 SPA1025 Install 1. Align the head restraint stalks with the holes in the seat. Make sure the head restraint is facing the correct direction. The stalk with the adjustment notches 1 must be installed in the hole with the lock knob 2 . 2. Push and hold the lock knob and push the head restraint down. 3. Properly adjust the head restraint before an occupant uses the seating position. Front-seat Active Head Restraints The Active Head Restraint moves forward utilizing the force that the seatback receives from the occupant in a rear-end collision. The movement of the head restraint helps support the occupant's head by reducing its backward movement and helping absorb some of the forces that may lead to whiplash-type injuries. Active Head Restraints are effective for collisions at low to medium speeds in which it is said that whiplash injury occurs most. Active Head Restraints operate only in certain rear-end collisions. After the collision, the head restraints return to their original position. 1-14 Safety-Seats, seat belts and supplemental restraint system