Saturn 2004 Ion - Manual (Page 22)

Shoulder Belt Height Adjuster (Sedan)
Before you begin to drive, move the shoulder belt
adjuster to the height that is right for you. 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.
To move it up or down, press the square button in
the center of the height adjuster knob and move the
height adjuster to the desired position. After you move
the adjuster to where you want it, release the button.
Try to move the adjuster up and down without touching
the square button to make sure it has locked into
position.
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