-on the 8.4 dash, there are no manual controls for the vent direction. I dislike going into a different screen and seeking it out.
-the automatic temperature sensor. I never use it mainly because it varies so much. Even when driving steadily down the highway. I'll move it from 72 degrees, to 69 degrees, to 75 degrees, just to feel comfortable. Nothing automatic about that.
-Small center back seat. Wife sits in that spot on trips between the kids and it's the most uncomfortable seat in the truck. Meanwhile the kid's two car seats are using up good quality seating and are definitely not taking advantage of the heated seats.
-Oil filter location of course. And more so than mine, a lot of our newer vehicles I service at work are Rams. Worst filter location by far.
-The time it takes the radio to start on the 8.4n. The warning message at startup is a minor annoyance too.
-The quality of the Aluminum wheels. I polished and waxed them twice within a year and I swear i could see spots on them within a few months.
-Poor Infinity audio system. I think the standard 4 speakers sound better than the 10 speaker. I've replaced several of the speakers, which has helped. But why can't they focus on having fewer quality speakers with more power rather than throwing out a big number of speakers to seem impressive? I've heard the Bose system from a new Silverado and wasn't impressed with that much either. So it's definitely not unique to Ram.
-A little concerned about all the modern things (tpms, uconnect screen)in there not working over time since I'll probably be hanging onto this vehicle for a while. But hey, that's with every new vehicle.
All-in-all. I've been satisfied with my 2015 Laramie.