I have had my C-Max for 9 months and have had the 12V battery go dead (4.5V) about 6 times. The ford dealer has had the car two times and could not find anything wrong. The last time on 08/26/2013 for a safety recall and the latest software was installed. The car started every day and I thought the problem was fixed. Last Saturday I pushed the unlock button on the key and nothing happened. The 12V battery was dead again. I was hoping somebody had found a fix that would last. Maybe Ford should have their employees responsible for finding the solution, drive a C-MAX for a year.
