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Tesla Vision fails as owners complain of Model 3 cameras fogging up in cold weather
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
maybe its because you are blowing issues that affect a couple people and assume it affects everyone. like that time a tesla was flooded and the news went with "tesla's can't operate in wet conditions" and here you are repeating what you heard from tabloid articles.
In this particular case, it's likely a manufacturing defect that caused the sensors to not be sealed properly causing moisture to get in. You are not smarter than 100's of engineers.