Buick 2004 Rendezvous - Manual (Page 48)

Center Rear Passenger Position
Lap-Shoulder Belt
If your vehicle has a bench seat, someone can sit in the
center position.
When you sit in the center seating position, you have a
lap safety belt, which has no retractor. You also
have a shoulder belt, which has a retractor. In order to
have the protection of the shoulder belt, you must
first connect it to the lap belt.
1. Remove the shoulder belt from its stowage location
in the roof and pull it all the way down to the lap belt.
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