Whenever I first drive the truck, morning, noon or night the brakes will squeal. After about 2 stops it doesn't do it anymore. After sitting at work for at least 4 hours and I take off again it will squeal again. What could be causing this? I haven't taken the wheels to visually inspect everything yet. Kind of frustrating hearing this in a new truck.

It's the semi metalic pads, high humidity areas seam to suffer from these complaints, sudjestion...for sanity sake you may want to have the pads swapped out for ceramic pads, you will unfortunately will have to buy the pads, but your dealership could cover the labor under warranty, talk to your service manager.....Dura Stop (a GM brand) make ceramic pads for your truck....