I have this problem often, I thought I’d be vaciase I have larger tires and a calibrator to compensate for the large tire size but seems to happen no matter what - I reset the TCM( Transmission control module) and it works great. Sadly only for about a day until it goes back to “it’s normal” - The dealer said this is a fluke in the trans and the rhetoric I captured from them is that I should learn to live with it…