I bought a used 2013 Fusion Titanium with keyless entry (push start button) and I notice that when you pull the door handed it should unlock all the door and just by climbing inside, press the brake and the start button it should start the engine but not in my case, I have to put it on a certain slot on the center console in order to start the car, at first I thought it should be the battery on the key fob but the lock/unlock, truck, panic, and remote start works fine.
I bought another key a brand new one thinking that should solve the problem but it does not, i think that something (sensor or part) is not working properly because it does not recognize the key that is close to the car to open the door with the handle or even start the car , it pop out a message saying “No Key Detected”