Squealing noise during cold start

[AP2468]

My 2023 Toyota 4Runner has 32,000 miles and making a squealing noise when it’s starts in the morning during the temperature drop and goes away minutes after starting . What is the issue?

 

[ArthurKotb]

My 2004 V8 has done that since it was new in 2003. It still does it on really cold mornings, below freezing temps. It doesn't sound like a fan belt. I always thought it was a vacuum leak somewhere. 23 years later and still does it so I guess it's not anything really bad; for me, anyway.