Two problems related to battery have 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.
Car lunges when accelerating or attempting to shift thru automatic or sport mode of the transmission. Transmission also temporarily pauses during shifting routine at all speeds, mostly at low speeds. It is like the cpu is overriding what the driver is prompting thru touching of the gas pedal or brake pedal. We've had it in to our local dealerships service department complaining about these conditions, they insist the car is working as designed. If so, Ford is in denial and most certainly appears to be a design flaw. I describe these concerns as if I was having to learn how to drive, all over again. This vehicle is dangerous to drive, safety should always be everyone's number concern. Ditto, the vehicle is not safe either. What is it going to take from Ford to admit and resolve this problem, an injury accident? I hope not. Then, top that off, we bought this specific vehicle for towing purposes. The factory requires the cpu and entire electrical system must be disconnected to tow. Unfortunately, each time the cpu is turned back on (reconnect the negative wire at battery), the cpu thinks it is new, thus, the lunging, sporadic shifting starts all over again. Help. . . Ford won't listen. Thank you.
Vehicle started but ran very rough. Turned off ignition and restarted and my touch screen came up but then every thing went black. Tried to restart but no ignition,no headlights no radio and could not even put it in neutral. Towing service had to jump battery to get it into neutral so it could be towed.