Rear window leak

[jason1derful]

29 minutes ago, Transient said:

So far so good. 2020 Trail Boss LT built 6/20 in Mexico.

 

Now that I've said something watch me report back with a leak. First thing first, though. I need some rain. It doesn't rain much in San Diego.

 

Sent from my SM-N960U using Tapatalk

 

 

 

See you back here in a month.  Enjoy the dry cab while you can.  

[Transient]

See you back here in a month.  Enjoy the dry cab while you can.  

Gotta love living in a place where it doesn't rain

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[OnTheReel]

Added an oil leak to my window leak. Going for the 2019 hat trick I guess.

Off to the dealer. Hopefully the line will hold another 20 miles.

[econometrics]

I wish there was a way to pin some messages on this thread. Here are a few that every new reader needs to read: 

 

1. Yes, if you have a rear slider your window WILL leak. Period. (you may last longer if you live in a desert) 

2. Yes, your window will eventually leak again if the dealer "seals it". 

3. No, your replacement window is not some new, unicorn design that will finally solve this. 

 

I realize I'm taking some liberty with the finality of statements #2 & #3, but those claims hold up pretty well on this 180+ page thread. 

[cltsig]

19 minutes ago, econometrics said:

I wish there was a way to pin some messages on this thread. Here are a few that every new reader needs to read: 

 

1. Yes, if you have a rear slider your window WILL leak. Period. (you may last longer if you live in a desert) 

2. Yes, your window will eventually leak again if the dealer "seals it". 

3. No, your replacement window is not some new, unicorn design that will finally solve this. 

 

I realize I'm taking some liberty with the finality of statements #2 & #3, but those claims hold up pretty well on this 180+ page thread. 

#4. GM is a bunch of friggin' idiots for letting this go on for over 3 model years with no end in sight.

[econometrics]

18 minutes ago, cltsig said:

#4. GM is a bunch of friggin' idiots for letting this go on for over 3 model years with no end in sight.

[SPASierra]

I'm surprised there isn't a class action yet.

[lexdrew]

21 hours ago, lexdrew said:

I spoke with him this afternoon and the new glass was delivered to them today.  He did not go over part numbers, but did mention the manufacturer was ATI.  I believe they produce OEM for Chrysler etc. and aftermarket.  So it is indeed different than the OEM GM glass.  They are bringing in their tech managers to all put their heads together.  He said I had evidently opened a can of worms, some of their techs are brought in by dealers, some of them do no work for dealers.  Several techs in rural areas were well aware of the issue and have worked on dozens for GM dealers.

 

The company owners now are considering not touching any sliding windows unless under contract from GM.  They don't want the liability to fall on them if someone comes directly to them, bc if the truck is less than 3 years old, they order OEM glass, which we all know will just crack and leak eventually.

 

Anyhow, they are going to study the aftermarket slider and compare it to several OE GM rear sliders and advise me after they have done so.  

Final update that may help some and infuriate us all:

 

Local glass guys got together, some of these guys have been doing this for 30+ years, and studied the aftermarket window from ATI.  They actually got two of them in.  They said it is not a solution and there were a number of reasons why.  Advised me to avoid that route.

 

Some of their techs have been doing these repairs for GM dealers and have relationships with upper management at GM.  The word from GM is that they are very aware of this, but they have no intention of making a permanent fix at this point.  Its TSB sealant, then replace glass, then sealant, etc.   Until the owner is out of their 36K bumper to bumper, then they are holding the owner responsible.   This may change, hope it does, because it is not a good look for GM.  This glass company said they were shocked at GM's position and they will not buy any GM product for their fleet simply due to GM's handling of this issue.  They also work on other brands and other brands are having similar issues, but they are being addressed properly (Tundra, Ford, Ram).  Basically, if you aren't already aware, GM does not care about their consumers.

 

Lastly, their best tech that has done dozens of these repairs, advised the most successful repair is to replace the glass and at the same time to perform the TSB sealant.  It adds some structure and stability, but is still only a temporary fix but should last longer.  

 

Their next advice, once you are out of warranty, is to simply install fixed glass or trade/sell.

[DSW1519]

Final update that may help some and infuriate us all:
 
Local glass guys got together, some of these guys have been doing this for 30+ years, and studied the aftermarket window from ATI.  They actually got two of them in.  They said it is not a solution and there were a number of reasons why.  Advised me to avoid that route.
 
Some of their techs have been doing these repairs for GM dealers and have relationships with upper management at GM.  The word from GM is that they are very aware of this, but they have no intention of making a permanent fix at this point.  Its TSB sealant, then replace glass, then sealant, etc.   Until the owner is out of their 36K bumper to bumper, then they are holding the owner responsible.   This may change, hope it does, because it is not a good look for GM.  This glass company said they were shocked at GM's position and they will not buy any GM product for their fleet simply due to GM's handling of this issue.  They also work on other brands and other brands are having similar issues, but they are being addressed properly (Tundra, Ford, Ram).  Basically, if you aren't already aware, GM does not care about their consumers.
 
Lastly, their best tech that has done dozens of these repairs, advised the most successful repair is to replace the glass and at the same time to perform the TSB sealant.  It adds some structure and stability, but is still only a temporary fix but should last longer.  
 
Their next advice, once you are out of warranty, is to simply install fixed glass or trade/sell.

Thanks for the great info Lexdrew. This is not a shock as if GM really wanted to fix this it would have been done already. Mine is in now for the first attempt at fixing the leak. I'm giving 1 shot, and the next time it leaks I'm having the solid glass installed. It's worth it for me to not have to deal with this long term.

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[JohnH4260]

Three model years and this problem goes unresolved. And GM isn’t even attempting to solve the problem with an engineering fix at the factory. I think SPASierra may be onto something, this has all the makings of a class action suit if enough complainants get involved. I’ve read it only takes 40 people to start a suit.

https://www.classaction.org/learn/how-to-start

[Megalomegalodon]

6 minutes ago, JohnH4260 said:

Three model years and this problem goes unresolved. And GM isn’t even attempting to solve the problem with an engineering fix at the factory. I think SPASierra may be onto something, this has all the makings of a class action suit if enough complainants get involved. I’ve read it only takes 40 people to start a suit.

https://www.classaction.org/learn/how-to-start

Start it and they will come.

 

They will handle this like they did (didn't) handle the cracking dash issue on 2007-2014 models. My Yukon XL Denali had the cracked dash and the bankruptcy cleared them for a class action up to 2010 models. Not sure where the case is because I traded in the Yukon for my 2020 leaking truck.

[JohnH4260]

25 minutes ago, Megalomegalodon said:

Start it and they will come.

 

They will handle this like they did (didn't) handle the cracking dash issue on 2007-2014 models. My Yukon XL Denali had the cracked dash and the bankruptcy cleared them for a class action up to 2010 models. Not sure where the case is because I traded in the Yukon for my 2020 leaking truck.

I haven’t purchased a truck, although I really like the 2021 GMC Denali. But at this point, I may just hang on to 2009 Dodge Ram 1500 until a body update is done in 4-5 years. Or I could just buy now and add the sealer along the top of the back window myself. Decisions...

[SilveradoRST]

3 hours ago, OnTheReel said:

Added an oil leak to my window leak. Going for the 2019 hat trick I guess.

Off to the dealer. Hopefully the line will hold another 20 miles.

That sucks.  Keep us updated.

[SilveradoRST]

2 minutes ago, JohnH4260 said:

I haven’t purchased a truck, although I really like the 2021 GMC Denali. But at this point, I may just hang on to 2009 Dodge Ram 1500 until a body update is done in 4-5 years. Or I could just buy now and add the sealer along the top of the back window myself. Decisions...

That's what I did, added the Kent sealant myself.  So far, so good.  I water tested it for a week with the headliner down.  Rain and with a hose.  There were some spots the tech missed when he applied the sealant.  Once  I gave it an even level of sealant across the top, all leaks stopped.

[OnTheReel]

8 minutes ago, SilveradoRST said:

That sucks.  Keep us updated.

Made it without incident and oil pressure intact. It’s dripping off the skid plate. Guessing oil cooler or line but they can’t look at it until tomorrow.
 

Not trying to hijack with my own calamities but I did think it was pathetic and kinda funny to have the thing leaking in two places at once. Oh well.

 

What I’ve read in the last page has almost talked me out of trading for a 2022. Just sayin, GM...