FORD 2015 E-450 - Manual (Page 28)

Using Tether Straps
Many forward-facing child safety seats include a tether strap
which extends from the back of the child safety seat and hooks
to an anchoring point called the top tether anchor. Tether
straps are available as an accessory for many older safety seats.
Contact the manufacturer of your child seat for information about
ordering a tether strap, or to obtain a longer tether strap if the tether
strap on your safety seat does not reach the appropriate top tether
anchor in the vehicle.
Attach the tether strap only to the appropriate tether anchor as shown.
The tether strap may not work properly if attached somewhere other
than the correct tether anchor.
Note: If you install a child seat with rigid LATCH attachments, and have
attached the top tether strap to the proper top tether anchor, 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.
Perform the following steps to install a child safety seat with tether
anchors:
You can attach the tether directly
to the rear of the front seat.
Child Safety 27
2015 Econoline (eco)
Owners Guide gf, 1st Printing, June 2014
USA (fus)