Howard,

Check the sticky on stopping rust while you can. On a light colored car like that, you can just lay on the ground under either door and and gently pull away a small portion of the black rubber and more than likely, especially on a 2004, you will see the rust. There is a great writeup on the fix from Andrew and it is easy, but if you point it out to the dealer and tell them they don't have to fix it, but you want another $1,000 off, can't beat that.....