I just had this happen to me today after one year of owning it (bought it March 2013). I took it into the shop for normal service a month or two ago, so it got the latest software update installed. I am at my dad's so he got the battery charger out and after 20 minutes it was good, so I am hoping it does not cause a problem when I drive back home about 1000 miles away. I plan on taking it to the dealer when I get home.