Th hinge on my 2006 Terazza third row of seats was not repaired after the third trip to the service department i.e. 26 miles per trip at $3.29 per gallon of gas. I ordered the part through RPM service paid for the part and repaired the hinge myself. The Buick is under 36 month 100 % full warranty. I contacted the Buick division in Detroit and their response was: "We dont interfere with issues associate with our Franchise owners of Buick sales /service" . Nice Full warranty? Yeah and I am a bullfrog.