Strange intermittent Chirp resembles breaks noise but it's not

So I have a fairly new 2014 docs tacoma trd off road. Over the past two months I've noticed an intermittent chirp noise that represents a break noise. It's coming from what sounds like to me the front drivers side. The noise is hard to describe but it's short and sounds like metal to metal. I usually will hear it when doing slow speed three point turns and pausing when going from rev to drive. Or sometimes even while going straight. I've taken it in to have them check my breaks a couple times. I've tried to bounce the suspension to get it to happen as we'll.

Im so confused as the sound doesn't happen all the time either. Hope you guys have some ideas on how to locate this problem. I will also mention I've noticed no difference in performance.

Thanks in advance and I'm sorry this is so vague but really this is all I have to go with since it's currently an intermittent noise.