Car would not start. battery totally dead. could not even get the key out of the ignition. aaa came and jumped battery, found no cause or reason for the problem. car is used every day; this problem was found in the morning after sitting in the garage all night. no sign of anything left on or anything causing the dead battery. battery took charge and car perform well until 09/19/2015 when the same thing happened again. dealer says no cause found or known. this has been reported by others on this model and also on 2012 and 2013 models.