I am having all kinds of issues. My 2011 sonata sometimes after a stop, will seem like there is a log under the wheels. This is both in forward and reverse. There is a light thump when I put it in gear. The dash indicator goes off when this happens and you cannot tell if it is neutral, reverse or forward. I have an appt. but am wondering what others think it might be. I think it is a major transmission problem. I am a lady....what do I know.