Ford 1998 Windstar Owner's Manual page 180

Place the child on the child seat and position the shoulder
4.
belts over each shoulder. Refer to Figure 3.
Figure 3: Shoulder safety belt placement on the child
NOTE: Read the following steps carefully to become familiar
with the indicator windows located on each safety belt
tongue and the chest clip. When either of the tongues
or the chest clip is unbuckled, the color red appears in
the window. When the tongues or chest clip are
securely buckled, the color green appears.
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