So I just bought my 2016 eco diesel 2 months ago. I noticed about a month ago that the transmission temp was high at highway speeds. Like 260 degrees. It even reached 275 once and sent me a warning. I took it to a dealership and they told me they couldn’t find anything wrong with it.i have it back, and today I got a message for “service electronic throttle control” and it’s having issues accelerating. Any ideas if these are connected? Or how to solve either? I’m new to the diesel world.