If anything, Florida weather is probably kinder to the Karma than most other parts of the country with “real winter”. EV batteries take more punishment and have a shorter range in the winter, and cold would have to be tough on many parts.
I would search “highbeam” on the forum. Here’s one discussion:
Like I say: I have no idea if mine work because I don’t think I’ve ever even tried them - not a “high priority” problem. I get more upset when a “check engine” light displaces the current speed reading then I’d be by having no high beams.