I've been having a minor issue over the last few months. Car has just 96k on it now. I drive for Uber these days, so "Ragin Bull" is getting a real workout daily. Transmission is acting slow on upshifts, sometimes to the point where I have to command an upshift with the paddles. Problem is inconsistent; some days it's fine, others not so much. Problem became noticeable after I had to take a fare from Denver airport all the way to Keystone...in the dark...over Loveland Pass...in a driving snowstorm. Average speed over the pass was 20 mph. Seems like the trans in this car REALLY hates long downgrades. Can anybody venture an idea?