Why is the 2019 ford explorer usb port not working?

The 2019 Ford Explorer USB might stop working for several reasons, including a blown fuse. All electrical components of the car are linked to a fuse which protects it from a power surge or similar events. If one happens, then the fuse basically sacrifices itself to save the electrical part. Finding and replacing the USB port fuse might resolve the problem. Another possibility is the port short-circuiting as a result of having a USB cable inserted in the wrong direction and forced in. This will sometimes make it react by shutting down and will not work until You power cycle the car. Simply put the car off, wait for some minutes and put it back on. Other causes to look out for are broken wires and disconnections.