Ford Windstar Owner's Manual page 203

Installing Child Safety Seats in the Front Seat and Rear
Window Passenger Seating Positions
Your vehicle is equipped with a dual locking mode retractor on
the shoulder belt portion of the combination lap/shoulder safety
belt for the front seat passenger and for the rear window
passengers.
If you choose to install a forward-facing child seat or infant
carrier in the front seating positions, move the seat as far back
as possible.
For seating positions equipped with a dual-locking mode
retractor, use the following procedure:
Position the child seat in the center of passenger seat.
1.
Pull down on shoulder belt, then grasp shoulder belt and lap
2.
belt together. See Figure 1.
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