Ford 2013 F-650 Owner's Manual page 32

Types of Booster Seats
If your backless booster seat has a removable shield, remove the shield.
If a vehicle seating position has a low seat back or no head restraint, a
backless booster seat may place your child's head (as measured at the
tops of the ears) above the top of the seat. In this case, move the
backless booster to another seating position with a higher seat back or
head restraint and lap and shoulder belts, or consider using a high back
booster seat.
If, with a backless booster seat, you cannot find a seating position that
adequately supports your child's head, a high back booster seat would be
a better choice.
2013 F-650/750 (f67)
Owners Guide gf, 2nd Printing, March 2013
USA (fus)
Child Safety
• Backless booster seats
• High back booster seats
31