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I lived in indiana the first 30+ years, and live in Norway now. I've never heard of car glass breaking because of the freeze/thaw cycle. More common, it is thi

I lived in indiana the first 30+ years, and live in Norway now. I've never heard of car glass breaking because of the freeze/thaw cycle. More common, it is things like hail during thunderstorms or gravel from a road.

madengr 10y ago
It is the water getting into chips and micro-cracks in the glass. Not instantly breaking, but growing into cracks over the years from freeze thaw cycles.