FORD 2012 F-550 v.2 - Manual (Page 161)

Using the power lumbar support (if equipped)
The power lumbar control is located on the outboard side of the seat.
Press one side of the control to
adjust firmness.
Press the other side of the control
to adjust softness.
Using the manual lumbar support (if equipped)
The lumbar support control is
located on the outboard side of the
seat
Turn the lumbar support forward
toward the front of the vehicle for
more support.
Turn the lumbar support backward
toward the rear of the vehicle for
less support.
Heated and cooled seats (if equipped)
The controls for the climate controlled seats are located on the climate
control system.
Heated seats
WARNING: Persons who are unable to feel pain to the skin
because of advanced age, chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaustion, or other physical
conditions, must exercise care when using the seat heater. The seat
heater may cause burns even at low temperatures, especially if used
for long periods of time. Do not place anything on the seat that
insulates against heat, such as a blanket or cushion, because this may
cause the seat heater to overheat. Do not puncture the seat with pins,
needles, or other pointed objects because this may damage the heating
element which may cause the seat heater to overheat. An overheated
seat may cause serious personal injury.
Seating and Safety Restraints
161
2012 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)