Lately I have had some random shifts from 2nd to 3rd result in some mild grinding, almost as if I didn't depress the clutch far enough or something was wrong in the synchronization. Then it happend 3 times in a short period of time, but still a randomly. I didn't find anything about this after searching the threads. Has something lilke this come up before? Never had it happen in any other gear. Btw, '06 GT with 19K miles. Bought as a certified used car, so I have warranty coverage.