1996 GMC Suburban Owner's Manual - Page 56

6. To tighten the belt, feed the shoulder belt back into the retractor while you push down on the child restraint. You'll be using the lap belt. See the earlier part about the top strapif the child restraint has one. 7. Push and pull the child restraint in different directions to be sure it is secure. To remove the child restraint, just unbuckle the vehicle's safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger. 1-48