Ford 1996 Windstar Manual page 51

Before placing the child into the child seat, forcibly tilt the
7.
seat from side to side and in forward directions to make
sure that the seat is securely held in place. See Figure 7.
Checking that the seat is secure
Double check the retractor is in the automatic locking mode.
8.
Try to pull more belt out of the retractor. If you cannot, the
belt is in the automatic locking mode. See Figure 8.
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