Buick 1994 LeSabre Owner's Manual page 29

Shoulder Belt Height Adjuster
1
You can move the shoulder belt adjuster to the height
that is right for you.
I
1
To move it up or down, squeeze the release handle.
When you release the handle, try to move it down a little
to make sure it has locked into position.
You can move the adjuster up from a lower position by
pushing the bottom of the release handle.
27