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Rear window leak

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GN2018 Enthusiast

GN2018

Posted
Posted (edited)
44 minutes ago, 2016 Sierra Owner said:

The motor stays. The window has a gearbox and cables that attaches to the motor. Separate the gearbox from the motor  and remove the window.


Is there anything you can do to repurpose the switch that used to open the slider?  Or, is that just a dead switch now?

Edited by GN2018
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Rocz3cqg
Rocz3cqg

Sliding Glass or / and Stop Light Module reported Leaking Situation             Contacts

ShamrockShooter
ShamrockShooter

Well my 2019 early build leaker was replaced with 2020 hopefully not leaker. No signs of an leaks on the window or headliner of the 2020 so fingers crossed. Very impressed with the 10 speed after th

Thomcat
Thomcat

No leaker here so can't do a 100% verification, but the problem seems to be with the spoiler design, regardless of weather the sealer leaks or not, and any cracks in the trim make it worse.  

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2016 Sierra Owner Senior Enthusiast

2016 Sierra Owner

Posted
Posted (edited)
9 hours ago, GN2018 said:


Is there anything you can do to repurpose the switch that used to open the slider?  Or, is that just a dead switch now?

Probably just a dead switch. It's more than likely connected to the BCM and that would require someone to program it to do something else if possible.

Edited by 2016 Sierra Owner
spell
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bfontenot9 Enthusiast

bfontenot9

Posted
Posted
4 hours ago, 2016 Sierra Owner said:

Probably just a dead switch. It's more than likely connected to the BCM and that would require someone to program it to do something else if possible.

I had the dealership replace the slider with a solid window, but now my interior lights don’t work. Wondering if having that slider components completed some kind of circuit, or if it’s something else unrelated. Anyone else have this issue?

  • 2 weeks later...
Ritchie Brown Enthusiast

Ritchie Brown

Posted
Posted
On 4/9/2022 at 8:54 PM, Jrodpic said:

I highly suggest anyone with a rear window leak buy some of the Trim-Lok .25” solid tubing and put it in the top gap of the spoiler. Was a cheap easy fix for me that worked for over a year and a half.

 

https://www.amazon.com/dp/B00NL4D2T8/ref=cm_sw_r_cp_api_i_JPZ941D56Z6QBW5JNSPD

I have a small leak. No headliner staining. My truck is parked inside most of the time so I don’t really want the dealership tearing my truck apart 4 or 5 times and possibly making it worse. I’m interested in this trim-lok meathod. Do you just put the trim-lok in the gap between the spoiler and window or do you mean the gap around the spoiler on top of the truck. Is any sealant used? Thanks for the help in advance.

  • 2 months later...
DTopGun515 New Member

DTopGun515

Posted
Posted

Does anyone have a service bulletin number that I can reference to get this fixed on my truck? I just called one dealer and they didn’t act like there was anything available. I’ve got a 2020 Sierra and don’t want to come out of my own pocket to fix this.

SPASierra Enthusiast

SPASierra

Posted
Posted
32 minutes ago, DTopGun515 said:

Does anyone have a service bulletin number that I can reference to get this fixed on my truck? I just called one dealer and they didn’t act like there was anything available. I’ve got a 2020 Sierra and don’t want to come out of my own pocket to fix this.

https://static.nhtsa.gov/odi/tsbs/2020/MC-10180301-9999.pdf

  • 3 months later...
Codeman00 Enthusiast

Codeman00

Posted
Posted

I am unfortunately here with the rest of you with the same problem on my 2019 Silverado RST.  I will be implementing the TSB fix myself since I'm at 41,000 miles.  Apparently the leak has been there for quite some time and I didn't know.

 

I called my local dealer, Payne Chevrolet in Springfield, TN and asked them if they had either of the required sealers in stock.  They said no.  I asked what was I supposed to do if I can't get them easily and you don't have them. He said, you would have to order them, and then hung up on me.   Amazing customer service when every truck has the problem, GM won't take responsibility and they won't even help you with parts.

IMG_7257.jpg

outrag1 Enthusiast

outrag1

Posted
Posted
50 minutes ago, Codeman00 said:

I am unfortunately here with the rest of you with the same problem on my 2019 Silverado RST.  I will be implementing the TSB fix myself since I'm at 41,000 miles.  Apparently the leak has been there for quite some time and I didn't know.

 

I called my local dealer, Payne Chevrolet in Springfield, TN and asked them if they had either of the required sealers in stock.  They said no.  I asked what was I supposed to do if I can't get them easily and you don't have them. He said, you would have to order them, and then hung up on me.   Amazing customer service when every truck has the problem, GM won't take responsibility and they won't even help you with parts.

IMG_7257.jpg

 

Do you have the rear slider?  

Codeman00 Enthusiast

Codeman00

Posted
Posted (edited)
1 minute ago, outrag1 said:

 

Do you have the rear slider?  

Yes.  Why, did I miss something in the 230 pages that I need to know?

 

Edited by Codeman00
outrag1 Enthusiast

outrag1

Posted
Posted
7 minutes ago, Codeman00 said:

Yes.  Why, did I miss something in the 230 pages that I need to know?

 

No, I just couldn't tell from your truck description or the picture.  There are questions on whether "some" leaks come from the spoiler holes in the roof, but it appears the bulk of the evidence here is from the rear slider frame itself.  Best of luck with the fix.  The write up on this forum is excellent.

Codeman00 Enthusiast

Codeman00

Posted
Posted
1 minute ago, outrag1 said:

No, I just couldn't tell from your truck description or the picture.  There are questions on whether "some" leaks come from the spoiler holes in the roof, but it appears the bulk of the evidence here is from the rear slider frame itself.  Best of luck with the fix.  The write up on this forum is excellent.

Much appreciated!  I can actually see the cracks on the inside looking up at the window channel from inside the truck....so I'm positive I have the same cracks on top under the spoiler. I plan to tackle this project tomorrow, fill the channel with sealant...and I'll report back. 

  • Like 1
bfontenot9 Enthusiast

bfontenot9

Posted
Posted
1 hour ago, Codeman00 said:

I am unfortunately here with the rest of you with the same problem on my 2019 Silverado RST.  I will be implementing the TSB fix myself since I'm at 41,000 miles.  Apparently the leak has been there for quite some time and I didn't know.

 

I called my local dealer, Payne Chevrolet in Springfield, TN and asked them if they had either of the required sealers in stock.  They said no.  I asked what was I supposed to do if I can't get them easily and you don't have them. He said, you would have to order them, and then hung up on me.   Amazing customer service when every truck has the problem, GM won't take responsibility and they won't even help you with parts.

IMG_7257.jpg

As one of many that have gone through multiple attempts and methods to “fix” the leak, your best bet is just to replace the slider glass with a solid glass. The first 3 “fixes” lasted anywhere from 2 to 6 months before it started leaking again. On my 4th attempt, I had a solid glass installed. It’s been almost a year and haven’t had any leaks. Saves a lot of headache too!

Codeman00 Enthusiast

Codeman00

Posted
Posted
46 minutes ago, bfontenot9 said:

As one of many that have gone through multiple attempts and methods to “fix” the leak, your best bet is just to replace the slider glass with a solid glass. The first 3 “fixes” lasted anywhere from 2 to 6 months before it started leaking again. On my 4th attempt, I had a solid glass installed. It’s been almost a year and haven’t had any leaks. Saves a lot of headache too!

 

That is VERY disappointing to hear, but good to know going forward.  I can see the crack and it corresponds to where the water is coming in...so hopefully....hopefully that will take care of it.  Time will tell.  Sorry you had to go back to a solid glass.

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