Speaking of dead batteries....................
Our 2018 Jeep Wrangler has the stop/start feature and it has 2 batteries; a small battery under the fuse panel to run the system. Pain in the *** to replace by the way. The light came on the dash the other day. I decided I was not going to replace it, pulled the fuse, and disconnected the negative cable from the smaller battery. Cleared the code, no more dash light and no more start/stop, WIN, WIN :thumbsup: