Cadillac 2000 Catera Owner's Manual page 31

Shoulder Belt Height Adjuster
Before you begin to drive, move the shoulder belt
adjuster to the height that is right for you.
To move it down, press down on the arrow symbol and
move the height adjuster to the desired position. You can
move the adjuster up just by pushing up on the bottom
of the height adjuster. After you move the adjuster to
where you want it, try to move it down without pushing
in to make sure it has locked into position.
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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