If your key fob battery needs changing there is no need to go to the dealer to reset the message on the trip computer.you just use the arrow keys on the steering wheel and navigate to the information menu -->system status and press the ok button to reset.
Choosing the right battery. A healthy battery is one of the many key components to proper vehicle operation. It helps start the engine and helps keep the electronics running. It also lets you charge your phone and play your music--even when the engine is off. But automotive batteries gradually lose power over time, and cold weather is Replacing the battery on your 2011 to 2014 Ford C MAX but don't know how to make a start? You can change your battery on a Ford Focus 2008 to 2014 also using this video as the process is similar. Please replace at your own risk, although the chance is slim you may need to reprogram your key and radio code.