Can a passenger side mirror of car crack by itself if it is cold enough outside?

It is highly unlikely for a passenger side mirror of a car to crack by itself solely due to cold temperatures. While extreme temperature changes can indeed affect materials, the side mirror assemblies of vehicles are typically designed and tested to withstand various environmental conditions.

Materials like automotive-grade polymers and tempered glass undergo rigorous engineering and testing processes to endure harsh weather conditions, including extreme cold.

A crack on the passenger side mirror is more likely to occur from external impacts, improper installation, accidental knocks, or vandalism rather than just the effect of cold weather.