What is the deal with the tranny update? What is that all about?
Could have something to do with sloppy shifts, or the delayed shift into 5th that some are having troubles with. Mine will sometimes stay in 4th to 50-52 mph.
And on a slow down-hill you hit the throttle and it will slam into gear.
The recall for the dpf [or mechanical sphincter] is to prevent the vehicle from going into re-gen at idle and perhaps melting a driveway light
which can happen if you let it run thru a cycle while its parked. I can only imagine that if the vehicle isn't allowed to go into active regeneration the dpf will clog because it only does that if not being driven hard enough to activate a passive regeneration.