Unfortunately, it does not seem like you have any recourse. Unless you have an extended warranty or there is a recall on the transmission, and the dealer refuses to honor either, there's not an apparent cause of action.
www.mdappeals.com - This is not legal advice nor does it create an attorney-client relationship. This is for education and informational purposes only. It is always recommended that you contact an attorney with any concerns as each individual case is unique.