Car is bone stock w/4400 miles. Noticed I'm getting a very noticeable squeal at idle. It isnt noticeable until car is warmed up and has been idling for a while.

Had plenty of cold days before and never did this. Anyone else?

 

I'm having the exact same problem.. I'm still trying to figure it out

 

got warranty? by milage u do but what year is it?

 

If you have a warranty you know the answer

My $0.01...

It is odd for a bad or loose belt to not squeal when cold and then squeal when warm, but either way you should check the belt. Otherwise, it's possibly an engine accessory or pulley.

Can you localize the source of the sound (top, bottom, left, right)? If you only have 4400 miles and the belt is damaged, I would be highly suspicious that an engine accessory or pulley caused that damage likely due lock-up/too hard to turn caused by a potentially bad bearing/pulley, etc. If an engine accessory was locked or too hard to turn and the belt was slipping at some point it could be glazed from rubbing and will likely continue to slip and get worse.