Watch your battery level!
Recently I had noticed that the much maligned auto stop feature was not engaging. I also noticed that the standby mode had a message that it could not be engaged due to low battery voltage. The car was otherwise working and starting perfectly. I decided to hook up the trickle charger overnight. Indeed the battery was short of juice. Everything is back to normal. Its easy to forget that these cars are never really off. I drive mostly short distances, otherwise, the car sits, in the winter, in a parking lot often at temps below 0F. I also travel every couple of mths thus the car can sit for a week or two. Caveat emptor keep an eye on your battery lest you get a nasty surprise when you least expect it.