All these electronics do weird stuff with a weak battery. Glad it was an easy fix.
All of the currently manufactured lead / acid batteries will not take a single complete discharge without complete failure. New vehicles overloaded with electronics coupled with traditional lead / acid battery storage that is not as good as 10 years ago has us running around circles trying to figure out what is wrong with our new or nearly new vehicles.
As an engineer, I would think that as significant electrical loads are added to vehicles - a good deal of which does not shut off when the vehicle is "turned off" (a mis-nonminer, because they no longer do that) - there would be better battery storage and draw management.
Evidently the best our friends at Ford and other auto manufacturers can come up with are devices that measure the current draw and as capacity wains, the system shuts down what it considers less important vehicle functions without any notification to the operator of what these are and what the operator can expect to no longer function. CRAZY!