FORD 1999 Windstar - Manual (Page 106)

Always drive and ride with your seatback upright and the lap
belt snug and low across the hips.
Lift handle to move seat forward or
backward.
Pull lever up to adjust seatback.
Tip slide seat (if equipped)
This feature allows convenient access into the second row seats through
the driver’s door and is only available on 3-door models.
Never adjust the driver’s seat or seatback when the vehicle is
moving.
Do not drive the vehicle with the tip slide seat unlatched.
Seating and safety restraints
106