Ford 2004 F150 Owner's Manual page 145

Connectors on the LATCH child seat
and the child seat instructions may
use the symbol shown here. Your
vehicle seat may have plain buttons,
instead of this symbol, to indicate the location of the LATCH lower
anchors.
Never attach two LATCH child safety seats to the same anchor.
In a crash, one anchor may not be strong enough to hold two
child safety seat attachments and may break, causing serious injury or
death.
The lower anchors for child seat
installation are located at the rear
section of the seat between the
cushion and seat back. The LATCH
anchors are below the locator
buttons (if provided) on the seat
back.
Follow the child seat manufacturer's instructions to properly install a
child seat with LATCH attachments.
Attach LATCH lower attachments of the child seat only to the
anchors shown.
If you install a child seat with rigid LATCH attachments, do not tighten
the tether strap enough to lift the child seat off the vehicle seat cushion
when the child is seated in it. Keep the tether strap just snug without
lifting the front of the child seat. Keeping the child seat just touching the
vehicle seat gives the best protection in a severe crash.
Each time you use the safety seat, check that the seat is properly
attached to the lower anchors and tether anchor. Try to tilt the child
seat from side to side. Also try to tug the seat forward. Check to see if
the anchors hold the seat in place.
If the safety seat is not anchored properly, the risk of a child
being injured in a crash greatly increases.
Seating and Safety Restraints
145