 I bought the Sentra new from a shady dealer in the Southeast. Soon after, the car started having multiple issues including door locks not functioning, AC stopped working, tire pressure light always on, among many other performance issues. I took the car to different dealerships service departments in the Atlanta area, and they all failed to repair the defects once and for all, which led me to believe that it is a "Lemon" and should not have passed the Quality Control at the manufacturer.