with my old 2012 eco, I had a problem with a dead battery. all the service lights came on, windshield wipers flopped 2 or 3 times, and a few other things happened. got it jumped off, and took it to a autozone. They tested the battery, saying it was perfectly fine. Same thing happened a few days later. This time, took it to a dealership, and they load tested the battery.. Had a bad cell, that will not show up on a regular battery test. Went ahead and allowed the dealership to replace it. 130 bucks later, never another problem.