FORD 2011 F-550 v.4 - Manual (Page 199)

1. Position the child safety seat in a
seat with a combination lap and
shoulder belt.
WARNING: An airbag can kill or injure a child in a child seat.
Child seats should NEVER be placed in the front seats, unless
the passenger airbag switch is turned off, See Passenger airbag on/off
switch.
WARNING: Rear facing child seats should NEVER be placed in
the front seats unless the passenger airbag switch is turned off.
2. Pull down on the shoulder belt
and then grasp the shoulder belt
and lap belt together.
Seating and Safety Restraints
199
2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)