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Leaking rear window

redpat2061
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NWSierra Enthusiast

NWSierra

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Posted
On 6/6/2024 at 11:52 PM, Newduramaxh*ar said:

What did you do with the open/close harness now that you changed it to a solid window? Im having the same issue, water inside.  Dealer added the silicone already 4yrs ago. Thinking of going with a solid window also.

 

The harness and motor for the slider are still there. I put that all back so that if I or someone in the future wanted to put a slider in, they could do so, no issues.  The defrost has no issues - slider actually has a harness for the left and right sides, that plugs into a single harness defrost plug on the truck side.  The solid window is a single plug that then plugs into the truck-side single defrost plug.  

 

 

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Pryme
Pryme

It seems some of these truck’s issues stem from the upper end options. Not to make light of any problems but that is a big reason I went with a WT(and because I’m cheap) it has a solid rear window(at

NWSierra
NWSierra

Went to solid rear window. really happy with it. Always liked the look even if it was less one upgrade option. The old window was a mess, cracked at the top/bottom of each "slider" section. Kind of sh

Pryme
Pryme

I like the look too of the solid rear window. Looks clean. 

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MPMikey New Member

MPMikey

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Posted

Same issue here for my 2020 Chevy Trailboss K1500. I haven't taken it to the dealer yet, glad to have the info about the TSB 18NA383 to reference. Anyone have luck with skipping the initial seal and just having the rear window replaced with a solid (non-sliding) one. Just afraid that it will start to leak again after the seal repair. I see definite cracks on the inside, upper part of the rear window and headliner has obvious water damage. 

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MPMikey New Member

MPMikey

Posted
Posted

UPDATE: Spent my morning playing the round robin tag on (unhelpful) phone calls between GM Customer Service Assistant Center and service manager at the dealership where we purchased the vehicle. I mentioned the TSB Service Bulletin to both and they proceeded to point the finger at each other. GM said that the dealership needs to confirm the issue and that they do not see any recalls or safety bulletins for our VIN. And then the service manager said that we have to bring the truck in to get it diagnosed (diagnosis fee $275), then they have to send the info to GM to see if they will cover the issue, because the 'dealership' is not responsible for covering this repair. It will take 1-3 days to hear back from GM and what their resolution might be. The dealership also telling me that they do not see any recalls or service bulletins on my truck, even though I can distinctly see from photos of the Safety Bulletin that it is what I am experiencing also. So if GM decides that they aren't going to cover it, I am stuck with the $275 diagnosis fee! Why do I feel like they are doing their best to NOT take care of this issue? #GMCustomerService

 

 

Same issue here for my 2020 Chevy Trailboss K1500. I haven't taken it to the dealer yet, glad to have the info about the TSB 18NA383 to reference. Anyone have luck with skipping the initial seal and just having the rear window replaced with a solid (non-sliding) one. Just afraid that it will start to leak again after the seal repair. I see definite cracks on the inside, upper part of the rear window and headliner has obvious water damage. 

NWSierra Enthusiast

NWSierra

Posted
Posted
On 7/22/2024 at 10:30 PM, MPMikey said:

Anyone have luck with skipping the initial seal and just having the rear window replaced with a solid (non-sliding) one. Just afraid that it will start to leak again after the seal repair. 

Yes. Save the time and the hassle and have a solid rear window installed like I did. The issue is the plastic frame of the window. It's worthless. If you read enough about this, they'll want to run you through the ringer of fixes like caulking or sealant, then back again for more, then maybe they finally give you another plastic window that'll break in X number of months.  Forget all that.

 

It'll take some explaining to these glass shops, most want only to replace with what you have OEM, i.e. another worthless plastic rear slider window. You'll find one that'll install a solid back window though if you're persistent.    

 

No leaks. Defrost works. Less hassle. Piece of mind.  I live in the Pacific NW, can't have issues with leaks up here.  

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MPMikey New Member

MPMikey

Posted
Posted

Thanks for the heads up and glad you were able to get it fixed. We were hoping to skip the sealing stage and just get the solid window. But right now, just jumping through hoops with the dealership and GM to just get the issue confirmed. Gotta love the $275 Diagnosis Fee, with the potential that GM won't cover the repair (even though I referenced the Service Bulletin). UGH! I am sure they can confirm it just fine with the photos that I have! But no, let's make this as painful as possible. We will probably have to go with an outside repair place.

  • 7 months later...
Guy Fox New Member

Guy Fox

Posted
Posted (edited)

40 years since high-mounted 3rd brake lights have been mandated. And GM and Mary Barra haven’t hired an engineer who knows how to design one that doesn’t leak. Never by a GM.

Edited by Guy Fox

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