I bought a 2019 Limited 1500 with 19000 miles and we have had trouble with a whistling noise that sounds like it's from the sunroof! We have had it in for repair 5 times and they think it's fixed but its not, the last time they said they have no idea what it is. I have contacted Ram customer care about a buy back but they say that the technicians at the dealership just don't know what they are doing and was also told the previous owner also had the same issue. I'm very frustrated as the noise is unbearable!
I don't know about the sunroof issue.
I read people have been getting wind noise from the:
1. The small gap in the forward side of the side view mirror housing. (You can tape the gap with tape, if it goes away, you have this problem)
2. improper seal in engine bay where the AC air intake is. (You can test it by turning re-circulation on and off. If the noise goes away when the recirc is on, you have this problem)
Additional issues I am tracking is:
1. rear window frame crack in the top portion in 2019 models, and some even leak in the rain. (I heard 2020 has redesign, and dealers will replace cracked ones under warranty)
2. A/C blend door doesn't seal properly and A/C pulls hot air from heater and doesn't get as cool as other cars at 10+ degrees higher vent temp. (Ram has not addressed the issue, and some people have been "fixing" this by physically modifying the heater core to disable the water flow to it during warmer months)