Update on these alerts: Critter Chew
I got my car into a dealership that had an opening/scheduling screw-up. It was good news for me because that was a full week and a half earlier than scheduled. They found the cable going to the power steering had been chewed through. I park outside. I think it had to be opossum or raccoon because of the thickness of the harness, but the openings on the splash shield are so small. Anyway, back on the road. Thanks for everyone's help.
PS The manual battery reset for the 2019 Edge is: "Car not started. Ignition and lights on, brights five times, brakes three times. Battery light will blink." But I think I would use a scan tool.