Ford Expedition Owner's Manual page 140

Seating and Safety Restraints
Manual seat recliner (if equipped)
WARNING: Always drive and ride with your seatback upright
and the lap belt snug and low across the hips.
WARNING: Reclining the seatback can cause an occupant to
slide under the seat's safety belt, resulting in severe personal
injuries in the event of a collision.
Pull the seatback handle up to
recline the seat.
Using the armrest (if equipped)
Push the release control to move
the armrest up or down.
140
2012 Expedition (exd)
Owners Guide, 1st Printing
USA (fus)