I got my Nissan pathfinder this July 2017. This is my first winter with it in Chicago. I'm just finding out that the heating system in my pathfinder doesn't work properly. It works when it's running, but, when you stop or you keep it on idle, it just blows cold air, but. A few seconds after running, it starts blowing hot air. I talked to the dealer. They're charging me 200 just to check the cooling system or to add fluid. I add fluid myself the problem is still there.