FORD F-250 - Manual (Page 82)

• 4–door Super Cab
To lower the shoulder belt height, push the button and slide the height
adjuster down. To raise the height of the shoulder belt, slide the height
adjuster up. Pull down on the height adjuster to make sure it is locked in
place.
Position the shoulder belt height adjusters so that the belt rests
across the middle of your shoulder. Failure to adjust the safety
belt properly could reduce the effectiveness of the seat belt and
increase the risk of injury in a collision.
Lap belts
Adjusting the lap belt
The lap belt does not adjust automatically.
The lap belts should fit snugly and as low as possible around the
hips, not around the waist.
Seating and safety restraints
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