12v battery fault error

[Steady Eddie]

I’ve had my mach e for 2.5 years now. I’ve had the 12v battery fault notification only at start up maybe 2x-3x. It doesn’t stay on and never comes back and dealer couldn’t find anything. Never had any actual battery issues
should I be concerned ?
anyone else getting this ?

I just had my 2022 in for this issue and was happy to have taken it in. I found this post when I started googling the acronyms in my service report. They found DTC B1616 in the body control module (BCM), a large draw that existed after they removed all 25 fuses in the BJB. Then removed the fuses from the BCM where they isolated the fault. Ultimately they had to replace the BCM and in the process take much of the dash apart including removal of the center display. Car was in the shop 2 days.
They also did two other recalls including one to fix the charge cord stuck issue. We had this issue at a DC charger in the middle of WY. That was stressful.

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