I have two 2013 Equinox and both have the same problem. After using the center console USB connection with either a Flash Drive or an Ipod the radio MyLink screen will not come on at times. The cure so far has been to shut the vehicle off with the USB port open. Wait 5 minutes restart the car and the screen will come on. When the screen does not come on all the controls (a/c heater) will not work. This is a serious issue if this happens in cold weather as you are unable to use the defroster. I have contacted the dealer and GM Tech support and either they do not care or that they are just plain stupefied as to what is causing the problem.