Chevrolet 1994 Astro Passenger Owner's Manual page 32

To move it down,
push in the adjuster at
the arrows and pull
down on the adjuster.
After you move the
adjuster to where you
want it, try to move it
up and down to make
sure it is locked into
place.
You can move the adjuster up from a lower position just by pushing up on it.
.
Adjust the height so
that the shoulder
portion of the belt is
centered on your
shoulder. The belt
should be away from
your face and neck but
not falling off your
shoulder.
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