I’ve had trouble with my F150 lights in Ontario last winter. A quick fuse check did wonders! Sometimes its the little things that make all the difference. Hope you get it sorted!
I’ve had similar issues with my F150 here in Ontario. It turned out to be a loose fuse! I always forget that little things can cause big problems. Just check your wiring and fuses first, and you might save a ton of hassle. Good luck!
In my experience with my 2012 F150 in sunny California, I ve had similar issues. It turned out to be a bad ground wire causing flickering. Such a pain to track down but once I fixed it, the lights worked like new! Always check connections first, it can save ya so much time!