Ford Expedition Owner's Manual page 163

Using the power lumbar support (if equipped)
The power lumbar control is located on the outboard side of the seat.
Press the forward side of the control
for additional support.
Press the rear side of the control to
reduce support.
Adjusting the front power seat
Never adjust the driver's seat or seatback when the vehicle is
moving.
Do not pile cargo higher than the seatbacks to avoid injuring
people in a collision or sudden stop.
Always drive and ride with your seatback upright and the lap
belt snug and low across the hips.
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.
The control is located on the outboard side of the seat cushion.
Move the switch in the direction of
the arrows to raise or lower the
front portion of the seat cushion.
2007 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
163