“Professionally” installed is not factory installed. I have seen plenty of “professional” installations that resulted in multiple vehicle issues, up to and including fires. Even when the engine is off, 12V power is still available, which means the aftermarket circuits/components would still have had power. Nobody is going to pay for a loaner unless it is determined to be a factory defect. Doing otherwise would imply responsibility for the issue, which puts the company at risk in terms of litigation.
If the dealership already completed 19S40, that’s not the root cause unless they simply didn’t do the procedure. Possible, but not very likely.
My best guess is that Ford will send out a fire inspector from their general counsel to inspect the truck at the dealer. Hope they can get to the bottom of it quickly!
