13k miles only.

I've been noticing this noise for the past few months and it wasn't as high-pitched. I noticed it has become louder today. It comes and goes inconsistently and I can't pinpoint where it's coming from exactly. I checked under the hood and engine bay thinking it was the belt or pulley but the noise was not coming from there. I also checked the suspension and ball joints but it's pretty normal. So I went under and fair enough it's louder down there. So I know for a fact it's coming from under the car, somewhere in the middle, but what is exactly? It's only visible loudly when the car is parked, idling. I don't hear it when the car is being driven or accelerating nor inside the car.

I've posted this on Facebook maintenance group but seems to lot say it's normal. I know what my car sounds like when it's normal. I know that the 4runner is a loud engine and makes strange noises, but this one doesn't seem normal and doesn't sound like it's coming directly from the engine.

See 2 videos. One is normal idling and the other one you'll hear the squeaking/high pitched noise.
Dropbox - 4runner - Simplify your life

Isn't it still under warranty? Take it to the dealer and let them sort it out.

no bad idea......let the internet mechanics figure it out

To me it sounds like a fan clutch bearing. Should be covered under warranty.

Yes, gonna to the dealer to get it checked. But I just wanted to check here first to see if anyone may know what could possibly be the issue before taking it to the stealership.

I'm just afraid the dealer would say it's normal or they can't replicate the symptoms.

If they say that make sure they record your complaint so when you take it back after something pukes they will have a record.