2008 GMC Acadia Owner's Manual - Page 35

Shoulder Belt Height Adjustment Your vehicle has shoulder belt height adjusters for the driver and right front passenger. 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. Incorrect positioning of the shoulder belt can reduce the effectiveness of the safety belt. To move it down, push down on the button (A) and move the height adjuster to the desired position. You can move the height adjuster up by pushing up on the shoulder belt guide. 6. To make the lap part tight, pull up on the shoulder belt. It may be necessary to pull the 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 go back out of the way. When the safety belt is not in use, slide the latch plate up the safety belt webbing. The latch plate should rest on the stitching on the safety belt, near the guide loop on the side wall. Before you close a door, be sure the belt is out of the way. If you slam the door on it, you can damage both the belt and your vehicle. After you move the height adjuster to where you want it, try to move it down without pushing the button down to make sure it has locked into position. 1-31