Just recently my 2012 V8VS has been making a loud squeaking noise while I'm driving (sounds like a belt). The sound eventually goes away after I've been driving 10-15 miles. Anyone have an idea what this might be? The car is driving fine, looking under the hood the belt looks ok.

 

Cold dampness and lack of use the FEAD belt likes to chirp/squeak/squeal until warm. Do not spray anything on it, it will make it worse. If it gets more annoying you may want to change the engine drive belt.