Why is my 2018 honda cr v usb port not working?

There are a few reasons that Your 2018 Honda CR-V's USB port may not be working, and the type of failure dictates the potential fixes. It's important to know whether the issue is loss of power (charging), loss of data transfer (streaming), or both. A loss of power typically indicates a wiring or hardware issue. There's little that can be done in this case, except for full replacement of the USB port. In some cases, with proprietary hardware, it's often simpler to fully swap out Your head unit (if that's where the USB port is located). If it's in Your center console, the fix is usually easier. If Your only issue is loss of data transfer (i.e., Your music won't play over a USB connection), then it's likely a software issue. Try rebooting Your head unit, Your phone or device, and try again.