Thousands of people have had occasional reboots of the Uconnect 8.4. In fact, I suspect that almost everybody who has one has had this happen. It's probably intended behavior to deal with certain fault conditions. I wouldn't worry about it unless it happens a lot, in which case you probably have a bad Uconnect 8.4. I'd be more concerned if the Uconnect died and could not be made to turn on again without disconnecting the battery, paired with an electrical burning smell, which is what @Killraven describes.I get the touchscreen rebooting itself as well. It only happens in winter on really bad cold winter days.