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.
There are very specific requirements for Maryland's lemon law, and there is a time limit. It does not, at least from these facts, appear that you have a claim.