FORD 2012 F-550 v.3 - Manual (Page 207)

Installing child safety seats in cinch tongue combination lap and
shoulder belt seating positions (All front center and Super/Crew
cab rear center positions)
The belt webbing below the tongue is the lap portion of the combination
lap/shoulder belt, and the belt webbing above the tongue is the shoulder
belt portion of the combination lap/shoulder belt.
WARNING: Always use both lap and shoulder safety belt in the
Regular Cab center seating position if applicable.
Note: Although the child seat illustrated is a forward facing child seat,
the steps are the same for installing a rear facing child seat.
1. Position the child safety seat in
the center seat.
WARNING: Airbags can kill or injure a child in a child seat. If
you must use a forward-facing child seat in the front seat, move
seat all the way back.
WARNING: Rear facing child seats should NEVER be placed in
front of an active airbag.
2. Slide the tongue up the webbing.
Seating and Safety Restraints
207
2012 F-250/350/450/550 (f23)
Owners Guide, 3rd Printing
USA (fus)