Moisture on rear seat cushion

[ExpressRules]

Had heavy rain the thru the weekend and yesterday and went out to my 19 and noticed the back seat cushion felt damp. I don't think it was a 3rd brake light leak or shark fin leak because the headliner feels dry. I won't have time today to pull down the seat backs for a closer look. Also because the dampness is on the actual cushion I don't see how the rear window would be the issue.

If anyone had a similar problem can you provide information on what caused it so I can get a jump tomorrow on what was found. I may go ahead and reseal the shark fin and 3rd break light regardless to save possible future headaches.

 

[Rado]

Interesting I am no help but following !
Only thing I can think of is were the back widows open for awhile side or rear glass ? ?
So far never heard anyone mention a damp seat from the rear vents !
Do you have any kids that may have had a accident :O ?

 

[ExpressRules]

No to everything. I've actually have only opened the rear window once which was to ensure it operated correctly when I purchased. The head liner being totally dry really has me baffled. I may get some clues once I can fold down the seat backs tomorrow.

 

[Marshall]

the weather here went form great to damn , so wonder if its just humidity
Put a paper towel on the seat and see it it collects any water. I don't really see how it could be wet unless a window was down a bit , rear window , the floor should be wet under the seat, same with brake lite.

Was the seat down or folded up? I presume it was down.

 

[chargedup78]

Get your window checked - i had the same issue with my 2019 rebel - only happened at first in heavy rainfall, then after a couple years the smallest rains would leave drops on the seat. They had to replace the entire rear window assembly - the leak was not from the brake light or roof, but micro fractures in the glass itself

 

[Dredger]

1. Had to replace the gasket on my 3rd brake light this year - water leaking on top of back seats (maybe from the ceiling light, not real sure but I was sure when it entered the truck. Headliner wasn't wet.)

2. Had to seal the roof marker lights on my truck this year, as well. This one took a bit longer to figure out. Water coming out of the grab handles on the pillar. Finally determined every gasket they use in these trucks eventually turns into a sponge. I'd have gladly paid more to have them use good gaskets on all the lights

 

[mikeru]

Had heavy rain the thru the weekend and yesterday and went out to my 19 and noticed the back seat cushion felt damp. I don't think it was a 3rd brake light leak or shark fin leak because the headliner feels dry. I won't have time today to pull down the seat backs for a closer look. Also because the dampness is on the actual cushion I don't see how the rear window would be the issue.

If anyone had a similar problem can you provide information on what caused it so I can get a jump tomorrow on what was found. I may go ahead and reseal the shark fin and 3rd break light regardless to save possible future headaches.

Rear window leaks are a common problem on 5th gens. Had it happen with our 2020 Limited. There is a warranty extension for many 2019 thru 2021 models…

Warranty extensions for CHMSL and rear window leaks

I figured I'd just make a new thread rather than try to update existing threads on this. For 2019, 2020, and some 2021 1500's (DT) Stellantis is extending the warranty on the 3rd brake light and rear windows that suffer from water intrusion. Here are the TSB's... Edit: The TSB for the rear...

www.ramforum.com