Rear window leak

econometrics · January 11, 2020

Rained very hard, and very steady for about 2-3 hours last night. Went to check my window this AM, and she was a-leaking again. Not too bad at all, but the leak is back, like the Terminator.

It was a nice 2 week break with no leaks. Then again, it barely rained those 2 weeks, Lol.

I guess it’s new window time for me.

JohnCasey · January 11, 2020

It took five trips back for GM to finally say a new window would be required. Now it’s backordered and they can’t tell me when it will be available. Good luck. The second caulk job was sloppier than the first.

Edited January 12, 2020 by JohnCasey
I miscounted my trips back to the dealership.

ShamrockShooter · January 12, 2020

And wait till the glass guys have to cut that caulk job off the back of your truck with a razor knife

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Centrebaseball · January 12, 2020

2 minutes ago, ShamrockShooter said:

And wait till the glass guys have to cut that caulk job off the back of your truck with a razor knife

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What is the heck am I looking at in this picture?? What a disaster.

ShamrockShooter · January 12, 2020

I was in the neighborhood so I did a drive-by at my dealer to see if my truck was outside. I could see a guy moving his belongings from a brand new high country to a double cable LT loaner. That can only mean one thing.....

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ShamrockShooter · January 12, 2020

What is the heck am I looking at in this picture?? What a disaster.

The seven inch long tattoo they left on the side of the rear window then "touched it up"

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gmcsierra71 · January 12, 2020

Browsing through this thread, if I understand the issues:

1) It appears that two different window manufacturers (VITRO and FUYAO) have been used and both have experienced leaks.

2) Both 2019 and 2020 models have experienced leaks

Is there a true fix to the issue? Can this be addressed in a 2021 model?

JohnCasey · January 12, 2020

6 hours ago, gmcsierra71 said:

Browsing through this thread, if I understand the issues:

1) It appears that two different window manufacturers (VITRO and FUYAO) have been used and both have experienced leaks.

2) Both 2019 and 2020 models have experienced leaks

Is there a true fix to the issue? Can this be addressed in a 2021 model?

That exact Vitro window has been used for the last 6 years. Earlier this week I would buy a factory new window on Amazon. It was listed for 2014-2018chevy and gmc

ShamrockShooter · January 12, 2020

The only thing I haven't seen is someone get their window replaced and then develop another leak. So if that is the case it could point to a factory install issue but it could also be a body flex issue which would not be very easy to address even in 2021. If it was a factory install issue you would think they would have fixed it by 2020 models and it would probably only be at one facility but that's not the case either.

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Centrebaseball · January 12, 2020

14 minutes ago, ShamrockShooter said:

The only thing I haven't seen is someone get their window replaced and then develop another leak. So if that is the case it could point to a factory install issue but it could also be a body flex issue which would not be very easy to address even in 2021. If it was a factory install issue you would think they would have fixed it by 2020 models and it would probably only be at one facility but that's not the case either.

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Everyone who has a leak and is able to get a buyback is probably smarter than us....sell the truck and move on so they never know if it leaks again or not!

Porterhouse · January 12, 2020

Just got mine back a few days ago. Took it straight to the carwash. No leak so far but I'm not holding my breath. I will have to go back when the new headliner arrives

bdsilverado · January 12, 2020

These new trucks have that much body flex?

If it was the same part used as the last body style and it worked on those but doesnt on these that is weird.

DZen · January 12, 2020

I originally posted in Feb 2019. I live in So Cal so we don’t get much rain. Purchased AT4 in November 2018. Leak in Feb 2019 in corners of rear window, my dealer had truck for about 5 days and replaced window. No issues until Xmas 2019, rear window leaking in middle after a heavy rain. Dealer took truck from 12/24 until 12/30. They replaced window again. We’ve had some small rain since, but I haven’t had any leaks yet. I really do like the feel of truck, but am debating on getting rid of it. Is this going to be a yearly thing every winter? How long will they keep replacing window at no cost? Both times they have given me a loaner Yukon so I can’t complain about that, but why does my $50K truck leak? It’s definitely an inconvenience to me and my family as this last leak was discovered the day before we were driving out of town for the holiday.

OnTheReel · January 12, 2020

1 hour ago, DZen said:

I originally posted in Feb 2019. I live in So Cal so we don’t get much rain. Purchased AT4 in November 2018. Leak in Feb 2019 in corners of rear window, my dealer had truck for about 5 days and replaced window. No issues until Xmas 2019, rear window leaking in middle after a heavy rain. Dealer took truck from 12/24 until 12/30. They replaced window again. We’ve had some small rain since, but I haven’t had any leaks yet. I really do like the feel of truck, but am debating on getting rid of it. Is this going to be a yearly thing every winter? How long will they keep replacing window at no cost? Both times they have given me a loaner Yukon so I can’t complain about that, but why does my $50K truck leak? It’s definitely an inconvenience to me and my family as this last leak was discovered the day before we were driving out of town for the holiday.

Well, there you have it folks, a previously replaced window that leaks again.

The answer to your question is they will keep replacing it until it’s out of warranty, at which time it would be wise for you (and all of us) to dump these trucks as fast as we can...

For anyone still thinking the 2020s will be any better at all...just saw this posted...original TSB has been updated to include the 2020 half tons and HDs. Admission the problem still exists I guess.

It will be interesting to see how many HDs have the leak by this time next year. Presumably the chassis is much stiffer, so if it’s a “flexing thing“, we may not see very many of the 2500/3500 trucks with this problem.

mistaare · January 12, 2020

5 hours ago, ShamrockShooter said:

The only thing I haven't seen is someone get their window replaced and then develop another leak. So if that is the case it could point to a factory install issue but it could also be a body flex issue which would not be very easy to address even in 2021. If it was a factory install issue you would think they would have fixed it by 2020 models and it would probably only be at one facility but that's not the case either.

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By no means am I trying to debate. I have been following this thread very closely, checking my window every time it rains (even lifting up the seats and checking the bolts for corrosion). If it’s body flex, wonder how many of the people that have experienced a leak use there truck for just a DD with mild driving conditions? In other words what situations would have caused their trucks to leak in the first place? Not sure if I am stating it correctly? I know I take my truck off the beaten path....

I love this truck but between the leaking windows and brake issues, it has me a little freaked, especially since it looks like GM doesn’t have a definitive fix for either