Why is my chevy cruze usb port not working?

Your Chevrolet Cruze's USB port may fail for a number of reasons, and the way that it's failing is usually indicative of the failure. Before you begin your diagnosis, the first thing you should do is to try a different cable. It seems elementary, but I've fallen to this problem more than once. If your cable is bad, you might have an issue with charging or data transfer. Now, your USB port may be damaged in and of itself, or it the associated wiring could be failing. Both are relatively simple to fix, but a replacement USB port will cost you a few dollars more than fixing the wiring. Still, either job should come in under $25 or so, and about an hour of your time.