Starting yesterday, my Volt no longer will play any music that I have on the flash drive connected to one of the USB port. I can browse all the songs on the flash drive, but when I click the play button, it seems to skip few seconds, but does not play it and the play button stays play button. When I click on the next button, it does not go to the next song. The flash drive was fine 2 days ago, I was able to play the songs on it. If the media player can see the songs, this would indicate that the flash drive is ok and not corrupted. After fiddling a while last night, it did finally play songs. Today, it won't play again. Should I take it in to Chevrolet for service?