Why is my Mustang key not working?
Why is my Mustang key not working? By far the most common reason for Your Ford Mustang's key FOB not working is going to be a dead battery. If your key fob isn't working, the most likely problem is that it has a dead battery. If it still won't work after replacing the battery it could have a stuck button or a broken connection inside. Is there a key fob for the 2019 Mustang? 2019 Ford Mustang Keyless Entry Remote Key Fob for smart, proxy system - new condition. Insert key included. It will only work if your vehicle has...