FORD 1999 F-350 - Manual (Page 84)

Press to raise or lower the rear
portion of the seat cushion.
Press the control to move the seat
forward, backward, up or down.
Using the manual lumbar support
Turn the lumbar support control
toward the front of vehicle to
increase firmness.
Turn the lumbar support control
toward the rear of vehicle to
increase softness.
Seating and safety restraints
84