Jump to content

Rear window leak

Demon
 Share

Recommended Posts

Transient Senior Enthusiast

Transient

Posted
Posted
I guess I have been lucky. Mine is not leaking. And I live in rainy Seattle. How do you know the build date on the truck?

Sent from my SM-T510 using Tapatalk


Silver sticker on driver's side b-pillar that also has your towing numbers.

Sent from my SM-N960U using Tapatalk

  • Replies 3.5k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

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.  

Posted Images

Transient Senior Enthusiast

Transient

Posted
Posted
No, the wing is my original window and the other is the new redesigned window.
So the circle jerk from GM continues???

Sent from my SM-N960U using Tapatalk

Duramaxsky Enthusiast

Duramaxsky

Posted
Posted
Silver sticker on driver's side b-pillar that also has your towing numbers.

Sent from my SM-N960U using Tapatalk

Thanks

Sent from my SM-A505U using Tapatalk

  • Like 1
hihosilverado Enthusiast

hihosilverado

Posted
Posted
15 hours ago, Dali555 said:

No, the wing is my original window and the other is the new redesigned window.

For what it is worth.....I just checked my September build 2021 and it does not have the wing.  My January build 2020 had the wing.  My 2020 never leaked, but it only 8k miles when I traded for the 2021 (which is not leaking).

RadBrad Enthusiast

RadBrad

Posted
Posted
3 hours ago, hihosilverado said:

For what it is worth.....I just checked my September build 2021 and it does not have the wing.  My January build 2020 had the wing.  My 2020 never leaked, but it only 8k miles when I traded for the 2021 (which is not leaking).

Also for what its worth, my August 2020 build does not have the wing, but it does leak.  Unless the actual frame itself is stronger or more reinforced, not sure really anything has changed with the part number change...

Jamie73 Enthusiast

Jamie73

Posted
Posted

Alright brothers I'm back. But not because my window is leaking again, that seems to be good for now. My question is, I have just opened my 3rd case with GMC, jumping through hoops, talking to idiots. My truck has been in the shop for 85 days in the past 10 months, and I have some serious damage from a repair just done which will take some time to fix it. Has anyone been able to get ahold and talk to someone other then the so called senior service advisor that you play phone tag with. I'm looking for a regional service advisor or some type of person like that. I have a lawyer, and am ready to strongly pursue a buyback. Any help or contact information to speed up this process is greatly appreciated. Stay strong and let's get these trucks taken care of.

Dali555 Enthusiast

Dali555

Posted
Posted
16 hours ago, Jamie73 said:

Alright brothers I'm back. But not because my window is leaking again, that seems to be good for now. My question is, I have just opened my 3rd case with GMC, jumping through hoops, talking to idiots. My truck has been in the shop for 85 days in the past 10 months, and I have some serious damage from a repair just done which will take some time to fix it. Has anyone been able to get ahold and talk to someone other then the so called senior service advisor that you play phone tag with. I'm looking for a regional service advisor or some type of person like that. I have a lawyer, and am ready to strongly pursue a buyback. Any help or contact information to speed up this process is greatly appreciated. Stay strong and let's get these trucks taken care of.

Give this a try. I’ve been in contact with her since mine started leaking and she even contacted my service manager a few times through the process without me even asking her to.

 

hope she can help you... her name is Laura and she is an executive resolution liaison for GMC...

 GMC Executive Resolution Liaison 
(855) 880-1500 ext.  5924415

  • Like 2
Dali555 Enthusiast

Dali555

Posted
Posted

I haven’t been able to drive my truck since I got it back last week because I tested positive for Covid... ugh... but I drove it today and I’m not pleased. The exhaust they replaced is grumbling/grinding at low rpm especially 1200 rpm. Annnnnnd my window is leaking again! Same spot. I haven’t been able to drive it so it can’t be cracked again but we had a steady drizzle yesterday. Sent a text with pics to my service advisor at the dealership and will now email GMC and update them as well. This is disgustingly ridiculous! Love my truck and want to have one that stays dry!!!!!! 

JohnH4260 Enthusiast

JohnH4260

Posted
Posted

I’m new to GM and this forum because I’m considering ordering a 2021 Sierra Denali. After reading the first 20 and last 20 pages of this thread, I’m shocked to see this problem continue through 3 model years. It seems the only solution is to order a truck with a solid rear window, which is possible on some models, but not the Denali. I may try to get a sliding rear window delete on my Denali order, but if not allowed, then I may order the SLT with solid rear window. Or I may just go with a Ram 1500. Very disappointing because I had my heart set on the Denali.

Blue5.3l Enthusiast

Blue5.3l

Posted
Posted
1 hour ago, JohnH4260 said:

I’m new to GM and this forum because I’m considering ordering a 2021 Sierra Denali. After reading the first 20 and last 20 pages of this thread, I’m shocked to see this problem continue through 3 model years. It seems the only solution is to order a truck with a solid rear window, which is possible on some models, but not the Denali. I may try to get a sliding rear window delete on my Denali order, but if not allowed, then I may order the SLT with solid rear window. Or I may just go with a Ram 1500. Very disappointing because I had my heart set on the Denali.

You can’t order a Denali or SLT without a slider. I’m leaning towards putting a solid window in when I pick my truck up from ordering to avoid the future problem. 

Jav_eee Enthusiast

Jav_eee

Posted
Posted
I’m new to GM and this forum because I’m considering ordering a 2021 Sierra Denali. After reading the first 20 and last 20 pages of this thread, I’m shocked to see this problem continue through 3 model years. It seems the only solution is to order a truck with a solid rear window, which is possible on some models, but not the Denali. I may try to get a sliding rear window delete on my Denali order, but if not allowed, then I may order the SLT with solid rear window. Or I may just go with a Ram 1500. Very disappointing because I had my heart set on the Denali.


Rams have leaky rear windows too. [emoji3061]


Sent from my iPhone using Tapatalk Pro
Scott Newhouse New Member

Scott Newhouse

Posted
Posted

Count me in as part of the leak club. My AT4 build date is 8/20. Thought I'd be lucky but seems like a design flaw with all of them. Hopefully my repair will fix this the first time because I love this truck otherwise.

econometrics Senior Enthusiast

econometrics

Posted
Posted
18 hours ago, Dali555 said:

This is disgustingly ridiculous! Love my truck and want to have one that stays dry!!!!!! 

Sorry you have COVID, I hope you're recovering well! 

 

Also sorry about the drama with your truck, wow. The best way to have a dry T1 is to shove a towel between your leaking window frame and the rear seat. I know this is fatalistic and a defeated POV, but hey... I love everything about my truck minus the fact that it's been leaking for over a year now. When they didn't fix it the first time I brought it in, I took heed of the horror stories in this thread of others being without their trucks for weeks/months, only to have their "repairs" not even work. 

 

My leak isn't very strong... just a very slow drip/drop, and really only when it's a soaker rain. 

 

All that to say, the little towel I keep back there has kept my truck from any musty smell, rust, etc. It's stupid to have to do this on a vehicle built in our current eon of human existence, but it's better than the alternative, IMO. 

RadBrad Enthusiast

RadBrad

Posted
Posted
1 hour ago, Scott Newhouse said:

Count me in as part of the leak club. My AT4 build date is 8/20. Thought I'd be lucky but seems like a design flaw with all of them. Hopefully my repair will fix this the first time because I love this truck otherwise.

Let us know what they do, and if it indeed stops, a lot of aftermarket fixes by some of the guys here, some seem to work good, but like others have mentioned, we shouldn't have to stick towels, and things in a truck to keep water from seeping in lol

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined

  • Who's Online   4 Members, 0 Anonymous, 2,202 Guests (See full list)

  • Latest Articles

  • Posts

    • B14Sierra
      Cam chain tensioner question

      By B14Sierra · Posted

      So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • dna9656
      No low range 4 x 4

      By dna9656 · Posted

      My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • Chuck FB
      summer road trips in the 2026 2500HD

      By Chuck FB · Posted

      I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...