This is exactly what happened to my '21 Mach E recently. I'm positive it is the 12V battery. My dealer offers remote service for its customers at no additional cost. I had them come out and the battery was replaced in 1/2 hour, including resetting the BMS. Start with replacing the 12V battery.
I believe that was just replaced on my '21 MachE Premium AWD about a week ago. I was experiencing the same issue and had the 12V battery replaced. BTW, while I had to pay for the battery the contactor was replaced under warranty (30K miles).
Thanks for the info. My extended warranty through AAGI denied reimbursement when the dealer inquired about it. At least I now know that it’s not a software update (as I was told by the dealer) that would compromise the value of my car,
Has anyone heard of this for a '21 Mach E Premium? My dealer requested that I pay $904.50 for this software update before a diagnostic could be performed to correct an issue with my rear cross traffic system. I refused, contending that any software update is the responsibility of the...