So everything was fine with my new TSX. Then one day, something went wrong, now the remote and the power locks dont work. They say there is a short in the system but they've had the car for days and haven't figured out the problem. They say they'll take care of it. The car is less than a month old. At a certain point, is there any recourse I can take if they can't figure out the problem or the problem keeps popping up after they eventually fix it?