What if the car makes a squealing sound from a cold start?

That is very likely a slightly loose serpentine or other drive belt. In colder weather belts get stiffer and slicker, fluid (as in the steering pump) gets thicker and harder to turn . If it diminishes when your car warms up, that is almost certainly the cause. - Let a mechanic hear it and diagnose it. There is also the possibility it could be a bearing worn in alternator or any other belt driven part.