Ford 1997 Aerostar Manual page 119

Pull the belt across your hips and insert the
tongue into the correct buckle on your seat
until you hear a snap and feel it lock. Make sure
the buckle is securely fastened.
If you need to lengthen the belt, unfasten it and
tip the belt tongue at a right angle to the belt.
Pull the belt tongue over your lap until it
reaches the buckle.
If you need to shorten the belt, pull on the loose
end of the webbing until the belt fits snugly.
To unfasten the belt, push the release button on
the buckle. This allows the tongue to unlatch
from the buckle.
The lap belts should fit snugly and as low
as possible around the hips, not around
the waist.
Safety Belt Extension Assembly
For some people, the safety belt may be too
short even when it is fully extended. You can
add about eight inches (20 cm) to the belt length
with a safety belt extension assembly (part
number 611C22). Safety belt extensions are
available at no cost from your dealer.
Use only extensions manufactured by the same
supplier as the safety belt. Manufacturer
identification is located at the end of the
webbing on the label. Also, use the safety belt
extension only if the safety belt is too short for
you when fully extended. Do not use extension
to change the fit of the shoulder belt across the
torso.
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