Chevrolet 2010 Colorado Owner's Manual page 59

5. To make the lap part tight, pull up on the
shoulder belt.
It may be necessary to pull stitching on the safety
belt through the latch plate to fully tighten the lap
belt on smaller occupants.
To unlatch the belt, push the button on the buckle. The
belt should return to its stowed position. Slide the latch
plate up the safety belt webbing when the safety belt is
not in use. The latch plate should rest on the stitching
on the safety belt, near the guide loop on the side wall.
Before a door is closed, be sure the belt is out of the
way. If a door is slammed against a safety belt, damage
can occur to both the belt and the vehicle.
I n f o r ma t i o n P r o v i d e d b y : 2-29