FORD 2002 F-150 v.1 - Manual (Page 155)

Do not leave children, unreliable adults, or pets unattended in
your vehicle.
To improve the fit of lap and shoulder belts on children who have
outgrown child safety seats, Ford recommends use of a belt-positioning
booster seat that is labelled as conforming to all applicable Federal motor
vehicle safety standards. Belt-positioning booster seats raise the child
and provide a shorter, firmer seating cushion that encourages safer
seating posture and better fit of lap and shoulder belts on the child.
A belt-positioning booster seat should be used if the shoulder belt rests
in front of the child’s face or neck, or if the lap belt does not fit snugly
on both thighs, or if the thighs are too short to let the child sit all the
way back on the seat cushion when the lower legs hang over the edge of
the seat cushion. You may wish to discuss the special needs of your child
with your pediatrician.
SAFETY SEATS FOR CHILDREN
Child and infant or child safety seats
Use a safety seat that is recommended for the size and weight of the
child. Carefully follow all of the manufacturer’s instructions with the
safety seat you put in your vehicle. If you do not install and use the
safety seat properly, the child may be injured in a sudden stop or
collision.
Seating and Safety Restraints
155