Dodge 2007 Durango Owner's Manual page 47

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 47
To reattach the seat belt to the third row center seat, pull
the small (keyed buckle) latch plate forward from the
headliner slots and insert it into the keyed buckle until
2
there is an audible click. Refer to the previous section for
the proper seat belt usage.
Headliner Stowage Slots
Third Row Center Seat Belt