We are in Canada, and the exact fault that comes up is "Powertrain System Fault". It says that it illuminates when the system has detected a powertrain or a four-wheel drive fault. The error message comes and goes. We booked with the dealer, but it naturally disappeared the day we took it in...
I live in Saskatchewan Canada where the temperatures you describe are seen every winter. We received our Lightning in January last year in the middle of a -40 period and have seen a couple similar periods since. The windows do ice up and I have to put the truck on max heating in order to keep...
The torque-based tricks work. However, they shouldn’t be necessary - I can drive in my other brand car all day without having to think about these little torque inputs. Hopefully Ford adjusts the sensitivity with a software update soon.