2004 GMC Sonoma Owner's Manual - Page 27

Right Front Passenger Position To learn how to wear the right front passenger's safety belt properly, see Driver Position on page 1-14. The right front passenger's safety belt works the same way as the driver's safety belt - except for one thing. If you ever pull the shoulder portion of the belt out all the way, you will engage the child restraint locking feature. If this happens, just let the belt go back all the way and start again. Lap Belt Center Passenger Position When you sit in the center seating position, you have a lap safety belt, which has no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-21