I have a 2017 Fusion Sport and it had the typical battery dying problem. I went to Ford a few months ago and the only thing they could do was resetting the system. It was fine till yesterday. But today in the morning its battery died so I tried to jump the start several times but it didn't start. Eventually the low voltage warning light came up. But I know the cause wasn't the battery though. On the fuse side, the noisy buzz continues. Fuse box looked good though. I attached the video below. I want to find the cause and go before sending it to the Ford. Unless they will charge me a lot. If anyone has experienced anything similar to mine, please help.