Well I searched the forum to find an answer, but haven't had much luck and hoping someone here can help. Brand new stock 2015 4x4, just over 3900 miles, heard this weird sound tonight but only when at a dead stop...not a mechanical sound, not grinding or squealing or rattling/vibrating, ticking...best way to describe it is like tumbling a mouse around in a plastic bucket. It was in the center, where the dash/console meets the floor, and sounded like it was just on the other side of the plastic. Nothing in the cup holders. Not a sound when driving at any speed, or when braking, just when I stop completely. I heard it about three times on my way home, pulled over into a parking lot and looked underneath, saw nothing, drove the rest of the way home and didn't hear it again. No weird smells or leaks or smoke. Any ideas?? Or did I have some animal get stuck in there?? Truck drove fine, no problems. Thank God it went away but I don't ignore anything out of the ordinary when it comes to my vehicles. If there is something wrong I want it taken care of pronto.