Warranty extensions for CHMSL and rear window leaks

[Dderrick]

Hello, @papcie03 and @Explorer682!

Our team would like to see how we can best assist. As it seems you are based in Canada @Explorer682, we are limited in the help we can provide. Our team helps customers and vehicles primarily in the United States. We recommend calling 1-800-465-2001 for further assistance.

For @papcie03, please send us a private message with your VIN and vehicle mileage! We would like to look into this.

Hannah
Ram Cares

Subject: Urgent Complaint Regarding Leaking Window and Extended Warranty Coverage

Dear @RamCares Team,

I am writing to formally address a recurring issue with my 2021 Ram 1500 DT, specifically a water leak from the rear window that I believe should be covered under the extended warranty (23-098-23). I initially reached out to 1-866-RAM-INFO last week and spoke with three different representatives on three separate occasions. Each time, I was assured that I would receive a follow-up call from a case manager regarding this issue and the coverage under the extended warranty. However, I never received any such call.

When I followed up today, I was informed that my case had been canceled and that I had been given ‘misinformation’ during my previous calls because for some reason my 2021 1500 isn’t covered by the warranty, yet my truck is clearly impacted by this defect.

This admission of misinformation is concerning, as it indicates negligence on Rams part and has caused further delays in resolving the issue.

While I have been waiting for a resolution, the water leak has continued to affect my vehicle and the subsequent growth of mold. As a result, I am unable to safely use my truck, particularly as I cannot transport my 18-day-old son in it due to these concerns.

This situation has escalated beyond a simple inconvenience, and I am deeply frustrated by the lack of communication and the continued disregard for my safety and well-being. An apology from the ‘supervisor’ that i spoke to is insufficient given the extent of the harm caused.

I request that you immediately address this issue, provide a timely resolution, and ensure that the warranty is honored in accordance with the coverage I am entitled to. Please contact me as soon as possible to resolve this matter

 

[mikeru]

I understand your frustration with how this warranty extension is being handled. The actual number of trucks which are actually covered by this seems to be immensely fewer than the actual number of trucks that have problems with the rear window leaking.

But since this thread was first posted, the warranty extension has been revised. They no longer replace the rear window. Instead, they apply an epoxy sealer to the rear window frame to stop the leaks. The warranty extension does not cover any other damage caused by the leak.

I hate to say this but your best bet is to take care of the problem yourself. You can try sealing the window yourself using a flowable silicone or have a glass shop replace the rear window at your expense. Definitely frustrating but IMHO it’s less frustrating that trying to get Stellantis to fix their own mistakes. Life is too short to waste on these types of things. But, again, that’s my opinion.

 

[Dodge 1500 4X4]

Here's the link for the 2 part epoxy to seal the cracked frame.

Amazon.com

 

[Shutterbug57]

Maybe a stupid question, but can one replace the slider style rear window with a 1 piece fixed window?

 

[RamDiver]

Maybe a stupid question, but can one replace the slider style rear window with a 1 piece fixed window?

That's not a stupid question.

It has been done, @Wild one has mentioned it was possible with specific years, IIRC.

Why not visit an automotive glass shop and ask the question.

.

 

[mikeru]

Maybe a stupid question, but can one replace the slider style rear window with a 1 piece fixed window?

Yes. The solid rear window is a direct fit.

 

[Wild one]

Maybe a stupid question, but can one replace the slider style rear window with a 1 piece fixed window?

I went the other way and replaced the solid back glass with a slider,and it was a direct fit,so i'd think you should be able to replace the slider with a solid window

 

[Musky Mike]

Maybe a stupid question, but can one replace the slider style rear window with a 1 piece fixed window?

Yes, the last time mine leaked I asked. All of the the sliding hardware is on the window frame. You can put in the non-sliding window and leave the plug hanging. That's what I will do next time it leaks, best I can tell from reading the forums, I couldn't find anyone that had a non-sliding rear window that leaked. I've never open my rear window, so it's no loss for me.

 

[tpolidori]

Thank you for sharing this. Should anyone wish to have their VIN checked out for this extension, please send our team a PM.

William
Ram Cares

This is useless, for owners outside of the very limited manufactiring window Ram is doing nothing to fix this. I just got a $3600 estimate to fix my Ram with the leak defect. My truck is completely inoperable because the leak shorted put my RF receiver. What junk. No point in contacting Ram (doesnt) Care for this.

 

[danjp]

OK My turn at the leaking rear window and 3rd brake light on my 2020 Ram 1500 Big Horn. We noticed a couple of week ago that the headliner had staining on it after some heavy rain we had. Upon closer inspection it was indeed wet. Our truck only has 21K miles on it and is in like new condition as we do not drive as much since we are retired.

Made an appointment at the dealer about the issue and was told that there is a warranty extension to replace the 3rd brake light which was done.
They also found out that the rear window was leaking and did the urethane seal which did not work at all. First rain and it again soaked with headliner and rear seat. So back to the dealer again. Here is a picture showing clearly the cracked frame with the leak.



Now the dealer service center wants to have the rear window replaced as the frame is cracked in 2 spots. Total cost around $1700 even though the dealer is not going to do the install but instead have a window glass company do the work while all the dealer does is simply supply the replacement window. It is probably better having a window company do the work at this point as the dealers service is anything but competent given they gave me my truck back the first time without even checking to see if they actually stopped the leak..

The dealer did check for a cost sharing with RAM and said that it would be a 60/40 split and I would still be in the hook for around $700. But they would NOT call RAM to see if they would cover it in full. They just simply gave me the 800 number and said good luck.
This is absolute BS from RAM as this was a known issue for multiple years. I will try calling and talking with their "care team" but doubt I will get anywhere. I already filed a complaint online but as expected no reply.

I will most likely get the work done and then just dump this POS since the dealer will not do anything about preventing mold from forming on either the headliner or seats and I don't want to deal with this down the road. So this will most likely be another brand that I will not purchase along again along with Ford who also would not honor a safety issue that almost resulted in an accident when the front suspension frame mount rusted out resulting in the loss of steering. Ford basically said to me in an email that if I don't like their response to just sue us. So it will interesting to see what RAM says but my guess is that their offer to cover "some" of the cost will be the best I can do.

 

[RamCares]

We would like to look into this as well, @danjp!

Please send us a private message with either your VIN or customer care case (if issued). Hoping to reconnect with you shortly!

Hannah
Ram Cares

 

[danjp]

I would appreciate a response to my question as I am in the process of trying to schedule an appointment with the dealer to have the rear window replaced.

 

[11B-33T]

Now I'm having to join this sad clubs membership. 2020 1500 (build date 8-20) with a drip when it's raining, but now can cannot see any cracks on under the trim of the interior window frame as others have shown. Not looking forward to the battle but will attempt to get the remediation process going.

I did pick her up in 2023 as a Dealer CPO RAM and hopefully the Carefree Car Protection for used vehicles with a manufacturers certified warranty will help.

~ UPDATE 01/02/2026 ~

Took truck into the dealer and they said they're aware of the TSBs but those only provide manufacturer guidance to the technicians on how to repair the problem and don't cover the cost of any repairs or remediation

 

[Zgresh]

Thank you for sharing this. Should anyone wish to have their VIN checked out for this extension, please send our team a PM.

William
Ram Cares

Ram Cares is absolutely useless and Ram does not stand behind or service any known issues. Do yourself a favor and go buy anything but a Ram next time you are shopping for a truck. What a pitiful company.

 

[RamCares]

Ram Cares is absolutely useless and Ram does not stand behind or service any known issues. Do yourself a favor and go buy anything but a Ram next time you are shopping for a truck. What a pitiful company.

Our team has responded to your private message and are still open to continue our conversation. Ultimately up to you, but we're always here.

Hannah
Ram Cares

 

[Mpgrimm2]

Our team has responded to your private message and are still open to continue our conversation. Ultimately up to you, but we're always here.

Hannah
Ram Cares

The fact that the ...
> rear window/Brake light leak keeps happening with different people, over and over and over again, along with the

> bubbling Limited/Longhorn dash pads, over and over and over again; along with the

> eTorque Generator/Random stall issues, over and over and over again;

on the 5th Gen trucks is embarrassing and has made it so I can't confidently recommend them to to people I know/talk to anymore vs 4th Gen/classic. Doesn't sound like the 2025+ trucks with Atlantis electrical architecture are off to a good start either.

If Stellantis/Ram/Ramcares are willing to start backing the trucks/warranty claims (& backing the dealers to do it) for these well known & documented issues, especially ones with TSB's, then that can change. We love the trucks when they are free from defects but quality & rep has suffered with the 5th gens.

Side note:
I lost a bunch of $$ trading in my custom ordered 22 rebel eTorque b/c dealer & higher tech support couldn't fix the random stalling issue with it (from 1200-30k mi) and it was unsafe to drive IMO. (There was always another SW update that was supposed to fix it, but didn't).

Will my '22 limited (w/o eTorque) have the dash pad issue? ... will it be covered? (Not based on feedback I see here).

 

[11B-33T]

Now I'm having to join this sad clubs membership. 2020 1500 (build date 8-20) with a drip when it's raining, but now can cannot see any cracks on under the trim of the interior window frame as others have shown. Not looking forward to the battle but will attempt to get the remediation process going.

I did pick her up in 2023 as a Dealer CPO RAM and hopefully the Carefree Car Protection for used vehicles with a manufacturers certified warranty will help.

~ UPDATE 01/02/2026 ~

Took truck into the dealer and they said they're aware of the TSBs but those only provide manufacturer guidance to the technicians on how to repair the problem and don't cover the cost of any repairs or remediation

~ UPDATE 02/22/2026 ~

Useless service managers at local CDJR said the CHMSL was the likely culprit so I bought a new one for $28.00. The new assembly gasket was noticeably thicker as shown:



Leak test with water hose showed this was not the issue and feeling around the inside by where CHMSL mounts as well the shark-fin antenna were dry.

I attempted to use Permatex window repair flowable silicon with a precision syringe but a rainstorm a week later with a steady drizzle showed that was a waste of time.

I went with replacing the rear window on my own vs. wasting multiple days, time, energy & trips to the dealer. Besides, the local Safelite is who the dealer sends all their glass-work to anyway. Safelite technician says the company's seen quite a number of rear windows of RAMs with this issue. He was cool enough to let me see the replaced window and pulled/scraped the gasket to show me where the cracks in the frame were as shown in these pics:


Drivers side rear


Drivers middle side rear


Curbside side rear


Curbside middle side rear

So BLUF is there were four damn cracks in the frame that CDJR has sent out TSBs for and it's a crapshoot to get this defect repaired under warranty. Sorry for the long post but the word needs to be kept going and feel free to share the pic as needed for the myriad of threads here relating to leaking rear windows for our model of RAM.

 

[TRK_GANG74]

Take the evidence to the media. Public shaming can get things moving sometimes.

 

[RamDiver]

~ UPDATE 02/22/2026 ~

Useless service managers at local CDJR said the CHMSL was the likely culprit so I bought a new one for $28.00. The new assembly gasket was noticeably thicker as shown:

View attachment 580314

Leak test with water hose showed this was not the issue and feeling around the inside by where CHMSL mounts as well the shark-fin antenna were dry.

I attempted to use Permatex window repair flowable silicon with a precision syringe but a rainstorm a week later with a steady drizzle showed that was a waste of time.

I went with replacing the rear window on my own vs. wasting multiple days, time, energy & trips to the dealer. Besides, the local Safelite is who the dealer sends all their glass-work to anyway. Safelite technician says the company's seen quite a number of rear windows of RAMs with this issue. He was cool enough to let me see the replaced window and pulled/scraped the gasket to show me where the cracks in the frame were as shown in these pics:


So BLUF is there were four damn cracks in the frame that CDJR has sent out TSBs for and it's a crapshoot to get this defect repaired under warranty. Sorry for the long post but the word needs to be kept going and feel free to share the pic as needed for the myriad of threads here relating to leaking rear windows for our model of RAM.

Thanks for the detailed report and for including all the pics.

Could you please clarify something that isn't clear to me? Perhaps the info is in some of your other posts on the topic.

So BLUF is there were four damn cracks in the frame that CDJR has sent out TSBs for and it's a crapshoot to get this defect repaired under warranty.

Are these pics of the back window frame from your truck that was previously replaced by Stellantis?

And you had Safelite replace this defective frame to finally resolve the leak?

TIA

.

 

[11B-33T]

Thanks for the detailed report and for including all the pics.

Could you please clarify something that isn't clear to me? Perhaps the info is in some of your other posts on the topic.




Are these pics of the back window frame from your truck that was previously replaced by Stellantis?

And you had Safelite replace this defective frame to finally resolve the leak?

TIA

.

- The back window frame was OEM as far as I know as I'm 2nd owner.
- I had Safelite replace the entire assembly out-of-pocket rather than the aggravation of dealing with Stellantis as well as the local CDJR dealer.
- Leak testing with hose as well as a trip thru the swirl-o-matic car wash revealed no leaking. (knocking on wood)