It's not glass, it's plastic, not critical because they aren't structural or leaking. I've not seen it before but would suggest it may be thermal shock due to your location. Ever had the snow slide off the roof of your truck onto the hot windshield and it cracks ? I have.
So it is cosmetic, repair would be replacement which is rather onerous. I'll attach the pdf for replacement for a c34, you might contact the factory in Florida
, they may have additional info. You could also contact Mark Plastics, he's very helpful and may be of assistance.