Hmmm.... I just recently started hearing a high pitched whine coming from somewhere. I'm not sure that I would consider it loud- just annoying and concerning. It seems (from the drivers perspective) to come from the right front (tire? ). Increased pitch as car excelerates and decreases as it slows down. And it does seem less prominent at higher speeds (but that may just be because it increases pitch beyond human 20,000 hz hearing range). It also seems to be more evident in cooler temperatures, in the morning commute, but not always. I didn't consider the tranny but maybe? 2018 chr xls NA version 30,000 miles... Anyone else??? Any thoughts on this issue?