One problem related to automatic transmission control module software has been reported for the 2012 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford Focus based on all problems reported for the 2012 Focus.
Was driving along a curvy road when it suddenly down shifted and I had no safe place to get off the road. I continued to try and get to a safe place and then it went in to neutral and couldn't move at all. Thank goodness another car didn't come it could have killed me. It then went back into gear and I did make it to a safe place to pull over and call a tow truck. The said it needs transmission control module. By the look of all the complaints on the tcm they need a recall before someone gets killed.