Heating and cooling does not work - there's very low heat and it gets suddenly changed to cold air. When on automatic, heat does not come. When taken to dealer was told it may have switch problem and bring back so I went back and was told there is nothing wrong, and when going to dealer I had to drive nearly 60 miles total. Problem is still there most likely they are waiting warranty time to expire. There are more problem with 19 Sentra poor lighting, size of tire is smaller than 2009. As a result it gets damaged from road debris.