Weird electrical problem

[Longball75]

Hey all, I have a 2018 expedition max fx4. One day the battery died randomly and ever since its been doing a few odd things. #1, the keyless entry on the door no longer works, I've changed it as well as the dcm and it's still dead. #2 the power mirrors seem to lose their memory, for instance, if I get in the truck and press the memory button for my seat settings, the mirrors start randomly going one direction to to the other eventually bottoming out and clicking. It's almost like they have no position feedback. Sometimes it's one, sometimes it's both. I'm thinking maybe the BCM next? Any ideas

 

[Longball75]

I've also removed the battery cables and shorted them together for 30 mins and that didn't seen to help

 

[Wangle]

Mine is doing strange things also. Mirror software update solved mirror clicking issue. Rear door unlock touch sensors won’t work after about 24 hours od sitting. The interior lights are supposed to stay on 10 min with engine off and door/hatch open. Duration reducing, down ro 1 minute. Wouldn’t start one time. Had battery tested at dealer in August and they said it was fine. Problems have since worsened. Going in for the recalls/not recalls/service for Cam Phasers software so they will check it again. I am convinced it is the battery.

 

[dlpguy]

I am having the same issues, was it a bad battery?