1997 GMC Suburban Owner's Manual - Page 51

If the belt is not long enough, see"Safety Belt Extender" at theend of this section. Make surethe release button on the buckle is positioned so you would be able to unbuckle the safety belt quickly if you ever had to. 4-Door Utility 1. Pick up the latch plate and pull the belt across you. it get twisted. Don't let 2. Push the latch plate into the buckle until it clicks. Pull upon the latch plate to make sure is secure. it When the shoulder belt is pulled outthe way, it all way and will lock.If it does, letit go back all the start again. 2-Door Utility and Suburban 1-41