1996 GMC Sonoma Owner's Manual - Page 43

Larger Children 6. To tighten the belt, feed the shoulder belt back into the retractor while you push down on the child restraint. 7. Push and pull the child restraint in different directions to be sure is secure. it Children who have outgrown child restraints should wear the vehicle's safety belts. 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. Children who aren't buckled up can strike other people who are. 1-35