Add me to this list now too.....
2020 Ram 1500. Unfortunately for me I'm just outside the warranty with 43k. I may just try to raise hell at the dealership tomorrow, if I cannot pinpoint the leak.
Ram really dropped the ball with this one. They habe the TSB's out, and are even involved in a class action lawsuit now, but still wont issue a recall. It takes someone forever to come up with the $40k+ to buy the car, and they just say screw the owner......it baffles me.
I'm getting water under my rear rugs pretty bad. It's happened at least twice now, so I ripped out the seats earlier and I'm gonna take the back liner off, to see if I can find the culprit.
From what I am reading it seems to be one of 4 issues
Window
3rd Brake light
Shark Fin Antenna
Cab Vents
I also found there is a leak issue with sunroofs, however mine doesn't have a sunroof...
Note: I attached the TSB(s) for anyone having issues with a leak in the back. Hoping that helps fight the good fight.
I don't appear to have any cracks on the window, and my headliner is dry. The back panel seems to be damp, but nothing serious.
Under my 3rd brake light didn't appear to be wet, however there is a very small hard to see stain in the headliner in that area. I did replace the bulbs with LED when I first got it, so I guess it's possible.
The rug however, seems to be soaked. More so on the passanger side then the driver side, and more in the edges/channels next to the in floor storage.
My windows condisate inside the truck, which is what caused me to look for water. I did find when I pulled the weather floor mats on the rear, the passanger side was a lot wetter then the driver, and it appeared to be in the back more then the front. ...
Imma take it all apart tomorrow and waste $200 in water to find the culprit.
I don't really know if I trust a company to fix an issue that they know exists, but won't correct it without taking your money ....
If it's that much water, it has to be a decent leak
EDIT: I Got all of the rug and seats out along with the back cover of the back wall. I was correct, it is a sizable leak.
The passanger side was in fact, soaked. Driver side was damp but not nearly as wet. The carpet and pad was wet all the way up to under the back of the front seats.
Was able to pinpoint the leak in a matter of minutes. With a bucket of water I started pouring it into the channel above the back window on the passanger side and "TADA" water into the cab I also poured it into the 3rd brake light, it leaks in the same place. Finally I poured water into the roof rain gutter ...and......still leaking in the same spot. I don't have any viable cracks in my back window plastic. It's possible the crack is under the top piece in the corner, above the headliner....or maybe the window sealant failed in any case...It's coming from the channel above the back window on the passenger side back corner. (SEE ATTACHED PHOTO)
Thankfully I have mechanical breakdown insurance through my insurance company so it covers the known warranty defect.
I did about 90% of the work for them so all they're going to have to do is replace the back window, however because the 3rd brake light is also an issue, I may just ask them to replace that as well.
Right now I have the rug propped up with a fan blowing towards the rug. I also went to the dollar store and got some puppy pee pads, since they are absorbent, to help with residual moisture and water. In addition I picked up an Arm and Hammer moisture absorber to try and help. I replaced all the bolt so there were no open holes on the floorboard.
I will drop it as the dealership tomorrow as I have an appointment on Wednesday. I drive a semi for a living, so I won't be back for a few days giving them plenty of time to fix it.
Hoping they appreciate the hustle of doing all the work for them.
1/10/23-
It wasn't fact the back window. The plastic on the window frame was cracked all the way back in the C pillar on the passenger side.
They end up replacing the entire back window. All it all was about $1,600.
I ended up using my mechanical breakdown through Geico and it was covered.
She did tell me that there was 50/50 that they would have covered it through good faith since I was only about 6,000 over my warranty and it's a well-known issue.
1/12/23-
Got the car back about an hour ago and immediately took it to the car wash....
A car wash Bay ...not an automatic car wash....
Put the nozzle on spot-free rinse and let it run over the third brake light and in the channel for about 10 minutes with no leaks.
Will check one or two more times before I put the rug and back seats and everything back together, but as of right now it seems to be holding.