sorry for the dup with the interior noise creaking issue, but I isolated it to the seat:

my right rear (longer one) seatback creaks when in the upright positon - on left hand turns and uneven pavement, like a upturned driveway.

It doesn't happen when the seat is folded down...

the dealer couldn't fix it.

has anyone had and fixed that problem?

haha. it must be driving you nuts by now.

well I can make it go away by keeping the seatback always down thereby converting the car into a three-seater :-)

try greasing the metal bar that the seat snaps into when you fold it up and the mount/bar/axis thingamajig that the seat back rotates on? Everything else is all padded, and I can't imagine it making noise from anywhere else