Dodge 2009 Avenger - Manual (Page 132)

The hard seatback features a work surface and a molded
rim for retaining items stored on the seat back panel. Adjustable Head Restraints
Head restraints can reduce the risk of whiplash injury in
the event of impact from the rear. Adjust the restraints so
that the upper edge is as high as practical. To raise, pull
up on the head restraint. To lower, depress the button on
the post guide and push down on the head restraint.
Fold Flat Front Passenger Seat
Adjustable Head Restraint
130 UNDERSTANDING THE FEATURES OF YOUR VEHICLE