I'm having the same issue!!!! Bought a 2020 1500 laramie with 32k miles this past monday and have had it to dealership for clunking in front end that they tell me is normal and now my passenger rear door would not shut and latch for the second time until I got the truck warmed up. This is not practical for me as my 10 year old daughter is in and out of the back doors everytime we go somewhere!!! I've always had gmc's and decided to go with the ram because I liked everything about it.... but now I'm 4 days into owning it and its one thing after another it seems. Feeling disappointed....