I have a 2015 MKX. I received the no fob detected message. I have changed the battery. I accidentally pressed the panic button on it. And it went to sounding. I pressed it again, and it stopped. I was several feet away from the car. It worked!! But no, when I tried to unlock or lock it using the fob, it didn't work. Nor did the panic button. So I tried to start the car. No luck. It will start with the fob in the start slot. Ideas??? Plz😢
If none of the buttons are working now I’d take it back apart and take a look. The battery isn’t upside down is it? I’ve seen the battery ground come loose on some of the boards.