Ford Expedition Owner's Manual page 27

This is necessary to remove the remaining slack that will exist once the
extra weight of the child is added to the child restraint. It also helps to
achieve the proper snugness of the child seat to your vehicle.
Sometimes, a slight lean toward the buckle will additionally help to
remove remaining slack from the belt.
9. Attach the tether strap (if the child seat is equipped). See Using
Tether Straps in this chapter.
To check this, grab the seat at the belt path and attempt to move it side
to side and forward and back. There should be no more than 1 inch (2.5
centimeters) of movement for proper installation.
Ford recommends checking with a NHTSA Certified Child Passenger
Safety Technician (CPST) to make certain the child restraint is properly
installed. In Canada, check with your local St. John Ambulance office for
referral to a CPST.
Using Lower Anchors and Tethers for CHildren (LATCH)
WARNING: Never attach two 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 LATCH system is composed of three vehicle anchor points: two
lower anchors located where the vehicle seat back and seat cushion meet
(called the seat bight) and one top tether anchor located behind that
seating position.
LATCH compatible child safety seats have two rigid or webbing mounted
attachments that connect to the two lower anchors at the LATCH
equipped seating positions in your vehicle. This type of attachment
method eliminates the need to use safety belts to attach the child seat,
2013 Expedition (exd)
Owners Guide gf, 1st Printing
USA (fus)
Child Safety
10. Before placing the child in the
seat, forcibly move the seat forward
and back to make sure the seat is
securely held in place.
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