I don't have any "problems" but something is afoot...
My Sync4 won't update past this last January, no "coolwalk" android auto. IT shows a update is downloading but when you click on it it's blank and doesn't ever update.
My DPF % is on 0, that is either a bug or a feature, not sure which.
It was working but after arriving in Colorado and checking the screen it was still on 0%, not one active regen going up there.
I enabled Auto regen and it immediately did one in the camp ground.
Drove all the way back left it on Auto and it never got off 0%.
This was the first time actually towing (and heavy) so maybe this is normal?
Gonna make a appointment to get the remote seat heat/cool fixed and bring up all these other possible issues.
The trip was flawless but half way through the return trip the wind was blowing 20 mph out of the direct on my nose, mileage went from 9.7 down to 7.8, DEF usage shot up with 1/2 a tank giving me 500 miles of range.
Again not sure if that is due to high load or something is broken.
The 3.55's are different, and when loads are high it defenitely seems to be harder on it, I just locked out gears to get boost lower and RPM higher, confirmed by cooling temps/fan engagement.
All in all great trip no issues.
Edit: I lied I lost a left rear hubcap somewhere between home and Amarillo.