Squeal-like sound coming from under the hood
 

I have a 2014 that will occasionally make a squealing type sound coming from somewhere under the hood.

I can't easily replicate it. Sometimes it happens when I start the car. Sometimes after I turn the car off. Sometimes when I'm driving down the road, and sometimes when I'm just sitting at a light or I just parked the car.

I had it in at the dealer for something unrelated and asked them about it and even showed them a video so they could hear the sound. Of course, they couldn't find anything.

I was hoping someone else had this issue and can tell me what it may be.

Attaching a video as well from this morning so you can hear it. At one point I reved the engine to see if that would stop it, but no luck.

I'm unable to attach the video, so I hope this url to Youtube works!

Thanks!
Laurel