I have a 2019 Ram Bighorn New Body Style Crew Cab 5.7L 4x2 and let me tell you something guys.....The dealership don't care and neither does Chrysler/Ram! Mine has been to 4 different dealerships across 2 states and 4 different towns totaling 9 visits. two of the four would not even go to take a ride in the truck with me! What a joke! So my truck makes a droning/humming noise when it is below 65 degrees outside. It happens at start up on a cold start when idling down, it happens when I am going 55mph and the truck slows down to about 49mph and downshifts. It will also do it at lower speeds and sometimes higher speeds as well. Most of the time this noise is accompanied by a vibration which can be felt in the passenger seat and the rear seat. It has been so bad before that my keys in the cup holder will vibrate and shake, plus my wife's sun glasses in the cup holders that are at the rear of my center console (We have a 7 month old baby so she rides back there a lot) will also vibrate and shake. This happens when it is around 65 degrees or below but if it is a warm sunny day or even a cooler clear sunny day it will not make the noice 9/10 times. The reason it don't happen on a cooler sunny day might sound crazy to some, but it is because I have a black Ram and in Florida even on a clear sunny 68 degree day it can feel warm and again the truck is black. I have a UConnect and gas milage issue also, which I believe the bad gas milage is a direct result of this problem I am having. I am talking about driving down the interstate on a flat road with no wind, doing 69mph and had already been for a few miles before resetting the gauge, and only getting 17mpg instead of the 22 that the sticker says. And I even have a tonneau cover which is supposed to improve gas milage by 3%-8%, yet I am getting 17.2mpg to be exact. I have audio recordings of the noise and video recordings of the poor gas milage as well as a couple videos of the UConnect messing up. All of that has gotten me nowhere at all. So after 9 visits and having my truck at the dealership for about 16-17 days worth and having another 20+ days where I was not able to drive it just in case it's not safe and the poor gas milage, here I am with the same issue. They replaced the "Active Noise Cancellation Module" and they have replaced one half of the muffler. The muffler on the Ram has two parts with each having a resonator, so why they didn't replace both sides is beyond my comprehension. When I took the truck to Blackburn in Vicksburg Mississippi over thanksgiving 2019, their tech was nice enough to go for a ride with me and he thought it was maybe my "MDS" because it felt like it and the noise is similar to that of when the MDS has been engaged, just a lot louder and longer lasting of a noise, and get this.....if I hit the "Tow Haul" button the sound and vibration goes away almost immediately! To bring things even more into perspective, I had Dayton Andrew's in Clearwater, FL and Dayton Andrew's in St. Petersburg FL not be willing to go for a ride with me at all. In fact at the Dayton Andrew's in St. Petersburg FL, their service director informed me that "I am not going for a ride and last time I checked I was still in charge here", I then replied "excuse me what did you just say? Can you repeat that please?" , to which he said again "Last time I checked I am in charge here". I almost lost it and only after I informed him that the nice lady with FCA that is over all the dealerships in my area (so his boss) informed me someone would go for a ride with me would he then change his tune real quick. "No thanks, I am good and I am just going to call her back and let her know what just happened" was my direct response to him. So this is why I have the name BuySilverado because that truck never gave me an issue and GM is real good about noticing something that needs to be recalled and getting it taken care of. So now my issue is with Suncoast Chrysler because even after two weeks ago when their shop foreman and another tech went for a ride with me, they A. Can't fix the issue and B. even after then both acknowledging that there is an issue, the service manager and service director say it is not a warrantable issue and it is happening because of the way I drive, and do you think either of them would go for a ride with me?.....Nope! Very sad and everything that they have put me and my kids through is simply disgusting to even talk about. I could keep going on and on about the horrible experience and customer service but I will end it here by saying DON'T BUY A RAM!!! Anyone please feel free to reach out to me as Chrysler has to fix these issues!