2005 Buick Rendezvous Owner's Manual - Page 63

Second Row Center Position Bench Seat with Third Row Seat Folded Down If the vehicle has a third row seat and the seatback is folded, there is an anchor on the back of the third row seat for the second row center position bench seat. Third Row Passenger's Side Outside Position There is also a top strap anchor for the third row passenger's side outside position. Locate the anchor symbol on the flap of carpet behind the seat. Lift up the carpet to access the anchor. 1-57