2017 Traverse Transmission Thump
My 2017 3.6L thumps every now and again at idle. Pretty sure it's coming from the transmission. You hear a slight "thump", the RPM drops slightly for a split second then returns to normal. This happens about every 10-25 seconds.
I also notice that when cruising, the transmission can't decide which gear to be in when driving at constant speed (we'll call it an "in between speed" where the speed is low enough to warrant a down-shift but also could just the same stay in the gear it's in). It "hunts". If I turn on the "tow" setting this issue goes away and always defaults to the lower gear. Anyone having similar issues?