Ford 1998 Windstar Owner's Manual page 168

The Importance of Being Properly Seated
In a collision, the air bag must inflate extremely fast to help
provide additional protection for you. In order to do this, the
air bag must inflate with considerable force. If you are not
seated in a normal riding position with your back against the
seatback, the air bag may not protect you properly and could
possibly hurt you as it inflates.
Your vehicle is equipped with a right front passenger air bag.
Air bags deploy with great force, faster than the blink of an eye.
Front passengers, especially children and small adults, must
never sit on the front edge of the seat, stand near the glove
compartment of the instrument panel, or lean over near the air
bag cover when the vehicle is moving. All occupants should sit
with their backs against the seatback, move the seat to the most
rearward position if possible and use the safety belts. Children
weighing less than 40 lbs. (18 kg) always should use child or
infant seats.
When installing forward-facing child seats in the front
seat, always move the passenger seat as far back from the
instrument panel as possible. Never install rear-facing
child seats or rear-facing infant seats in the front seat.
The force of the rapidly inflating passenger air bag could push
the top of the rear-facing seat against the vehicle seatback,
armrests or console. Rear-facing infant seats must always be
secured in the rear seat.
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