I have water leaking in soaking my back carpet everytime it rains on my 2019 RAM Limited. I have had my truck to the dealer 2 times so far and they don't seem to even try to figure out the issue of where the water is coming from. The first time they said it was a clogged sunroof drain tube and they water tested after repairing. First rain after I got it back and same problem. Second time I took it in they said it was likely the brake light above the rear window and they said they inspected the seal, not sure what good that's going to do and then they said the tested under water for 2 hours. Well that can't be true because when I went back to pick it up it had just rained so decided to check the back carpet before leaving the dealer and guess what, it was wet! So I went right back into the service department and asked if they did anything at all! I would have left if with them but it was last Friday and I needed my truck over the weekend. They told me it tested fine when they did the water test and acted surprised that it was wet after it rained.
So I decided I would try and trouble shoot the issue myself with a hose to at least find where the water seems to be coming in at since the dealer can't even figure that out. Keep in mind this is supposed to be the best Ram dealer in KC....not! Well anyway my water testing today showed that the water was leaking in the cab when I sprayed water on the back window, lower right corner, the water would then leak down the back right corner inside the cab and run along the back of the cab to the drivers side and down into the storage area under the seat soaking the carpet on the drivers side. So I am heading back to the dealer tomorrow to show them them what I have found hoping this is enough info for them to figure it out. It appears to be an issue with the back window seal, there is also sunroof drain tubes that come out about half way down the back of the cab between the cab on the bed on both sides. These drain tubes have a rubber grommet that fits in a hole in the back of the cab. The rubber grommet on the right side appeared to be pushed back in the hole where it could allow water into the cab. I got under the truck so I could reach up and pull it back out so it would fit in the drain tube hole in the back of the cab properly. I was hoping this would resolve the issue since water that was sprayed on the back window would run down the back of the cab around this grommet but it did not. So back to the dealer tomorrow with this new info to see if they can figure it out this time. If not I will be getting a lawyer involved to look into my lemon law options. I really love everything about this truck and hate that I have to deal with an issue of water leaking in the cab after paying $65k for a truck! This is my 6th RAM in a row and this is the worst issue I have ever had.