I had this problem with my 2016 Volt. Neither USB port would work. I took it back to the dealer. They changed out both USB ports. They both work fine now.Neither of the two usb ports in my new 2016 volt work. Plug in an iPhone 6. Nothing. Anybody else have this problem?
Keep us updated; it would be good if the service dept. can determine what was the cause of the failure. FWIW, my USB outlets perform just fine on my 2017 Premier, which was built in early April. So clearly, there may be some build issues, and I'm curious if these are occurring primarily on the earliest batch of vehicles...Neither USB port on my 2017 Premier work. Will not charge and will not recognize any USB stick. I can only USB charge by using an adapter in the 12 v. outlet. Car on or off = the same negative result.
In short, both USB outlets are dead. Car was built in February 2016.
As "Kserraserra" writes above, it should be a straightforward dealer fix. I'll try to schedule this fix with the Android Auto update.
First time I plugged my phone into the USB ports of my new 2017 Volt, I found the same thing. The ports were both dead.
Strange thing was, when I pulled and then simply reinserted fuse #26, the ports were fine. That was a couple weeks ago and I've had no more problem from them. A flash drive is almost always installed in one. The other I use to connect my phone, for Android Auto.
The fuse panel is under the dash, near the steering wheel. The manual identifies which is fuse #26. I pulled the fuse using needlenose pliers, then just reinserted the fuse.
After I that that pull-and-reinsert of fuse #26 once, I've never had to do it again.Thanks for the tip! Same thing just happened with my 2017 yesterday, so I pulled and re-inserted fuse 26, and the ports are working normally again. Hopefully it won't happen again, but at least now I know what to do! I hope that GM comes up with a better, permanent fix soon.
Just a thought. Are you using a name brand flash drive? I have found a couple of off brand drives that sometimes work, sometimes not. When they do work, sometimes a message will come up about the aux media has been unplugged even though it has not. My Sandisk drives work every time all the time.After I that that pull-and-reinsert of fuse #26 once, I've never had to do it again.
Now the only complaint I have is about the system failing to reconnect the flash drive, when the car is re-started. Oftentimes, when I'm listing to music streaming off the USB stick, I find it doesn't reconnect nicely, after I turn the engine off. When I turn the engine back on, the infotainment system sometimes doesn't re-connect the USB stick. I have to pull the stick from the USB port and then reinsert it. The infotainment system always re-establishes the connection and always picks the music up right where it left off (when I shut the car off). However, I find the "shuffle" setting - which I almost always have "on" - is now turned off.
It all sounds like something a firmware fix could address.
Anyway, for as odd as that bit with the fuse was, I've not had to repeat the maneuver.
Whoops. A little less than four months since the first time I did the pull-and-reinsert of the fuse, I found I needed to do it again.After I that that pull-and-reinsert of fuse #26 once, I've never had to do it again.