2008 GMC Sierra 1500 Pickup Owner's Manual - Page 32

{CAUTION: A safety belt that is not properly worn may not provide the protection needed in a crash. The person wearing the belt could be seriously injured. The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. 4. Buckle, position, and release the safety belt as described previously in this section. Make sure that the shoulder belt crosses the shoulder. To remove and store the comfort guide, squeeze the belt edges together so that you can take them out of the guides. Slide the guide onto the storage clip. 1-28