above the rear window the head liner and the backing material is loose.

Many vehicles of this age group have issues with headliners due to the glue becoming weak simply over time. I wouldn't say that GM is building "crap" simply because of this minor issue. The Buicks of that year are good cars as long as you replace the intake gaskets and have the power steering system flushed regularly to prevent rack and pump leaks.

AGREE WITH #1 GM BUILT IT BUT THEY DID NOT SUPPLY THE GLUE ON THE HEADLINER,BLAME 3M.LOL ITS VERY COMMON OVER TIME

I also agree! If you are driving with windows down it will increase the chances of the headligner comming loose at the rear window as well! Just saying... Nothing wrong with this vehicle.....very reliable car!

TEN years and that's it?..............WOW......lol.!!!!!!!!!!!!!!!fix it and get over it. & stick with the prius 't til the new accord hybrid starts getting some publicity (if honda doesn't screw it up this time)