Ford F-150 2018 Owner's Manual page 26

The belt webbing below the tongue is the
lap portion of the combination lap and
shoulder belt. The seatbelt webbing above
the tongue is the shoulder belt portion of
the combination lap and shoulder belt.
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1. Position the child safety seat in the
front center seat.
E162708
2. Slide the tongue up the webbing.
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201705, First Printing
Child Safety
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3. While holding both shoulder and lap
portions next to the tongue, route the
tongue and webbing through the child
restraint according to the child restraint
manufacturer's instructions. Be sure
that the belt webbing is not twisted.
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4. Insert the belt tongue into the proper
buckle (the buckle closest to the
direction the tongue is coming from)
for that seating position until you hear
a snap and feel the latch engage. Make
sure the tongue is latched securely by
pulling on it.
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