Googling "Auto Lemon Law" yields a bunch of state info, plus info on the 1975 Magnuson-Moss Warranty Act (
http://www.autosafety.org/article.php?scid=116&did=748) which covers all sorts of consumer products with warrantys, not just autos.
Sorry for the misinfo.
In any event, I think Randall is right. That is a last resort, not the first one.