Rattle in the rear!

[dawg99]

Mine was the jack under the rear seat.

[nichos]

My little velcro trick seemed to work. I cut a 2" piece of velcro and used the "soft" side of it. Stuck it on the window and no more noise!

I tested opening and closing the window while watching the track and it doesn't interfere. I went with 2", but you could probably go for the length of the track, but if the window is open, you probably wont hear anything anyway.

 

[bamorris2]

My little velcro trick seemed to work. I cut a 2" piece of velcro and used the "soft" side of it. Stuck it on the window and no more noise!
I tested opening and closing the window while watching the track and it doesn't interfere. I went with 2", but you could probably go for the length of the track, but if the window is open, you probably wont hear anything anyway.
 

Thank you!! My truck is dead quiet except for what I believe to be this rattle. Will try your fix, hoping it helps.

[JR09country]

I moved the back window just enough to put some tension on the chain and it definitely seemed to help. I need to drive some more but it looks like the chain might be part of the issue.

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[bamorris2]

I moved the back window just enough to put some tension on the chain and it definitely seemed to help. I need to drive some more but it looks like the chain might be part of the issue.

Sent from my ONEPLUS A6013 using Tapatalk

What do you mean you moved the window? Like, you cracked it open a little bit?

[JR09country]

What do you mean you moved the window? Like, you cracked it open a little bit?

You can press the button for a split second and it moves just slightly, maybe a 1/4". Seems like its still sealed since i dont get any wind noise but i have not tried with water. Mine stays in the garage so ill look when i drive in the rain or wash it.

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[foghorn23]

Same rattle here.  Had a similar rattle in the past on a 2013 Silverado crew.  On that truck it was the latches that secured the back seat to the rear wall of the cab.  Got in the back of mine yesterday and pulled the head rests.  Sprung them ever so slightly at the bottom and the noise seems to be gone.  Mine seemed to be coming from the driver's side rear.  Made no difference if I had a rear passenger or not.  Fingers crossed, and if the noise returns, I'll keep on searching.

Edited December 25, 2019 by Foghorn19

[bamorris2]

A drive earlier today seems to confirm that nichos’ solution also fixed mine. I used a 4” strip of Velcro in the same place as he did, and the rattle over rough roads seems to be gone.

Great job nichos!

[LarryM]

I tried everything in here, was at wits ends then thought maybe, just maybe its coming from the outside. It seems to do it when the truck was "flexing"..sure enough, pushed on the rear spoiler in the back driver side and that "squeak" was making it through the cab causing the sound...no trying to figure out how to fix it.

[DonnieG]

I have less than 2,000 miles on my pickup and took it in and they said it's the leaf spring. They retort the leaf spring and put additional grease on it less than 250 miles later the rattle is back. They said to bring it in and they will add more lubricant which I replied I did not pay $40,000 to come in ever 250 miles for y'all to add more lubricant to it fix the damn thing

Edited December 7, 2021 by DonnieG
Misspelled

[Byrds8]

I have a rattle in the rear of mine also but I think its coming from the headliner. If I get back there and push up on it you can hear it smack the roof. Someone else on here said there are dense hard blocks of Styrofoam up there can hit the roof when you hit bumps etc. Gonna have them look at that when it goes in.

[Mike1022denali22]

I just bought 2022 1500 Denali today and I can’t hear anything while on the interstate but as soon as I slow down and go over any kind of bump I have a very loud rattle coming from the passenger side only has 125 miles on it. What do you guys think it is? I’m ocd and is driving me crazy. Help

Edited March 20, 2022 by Mike1022denali22

[TNTSierra]

11 hours ago, Mike1022denali22 said:

I just bought 2022 1500 Denali today and I can’t hear anything while on the interstate but as soon as I slow down and go over any kind of bump I have a very loud rattle coming from the passenger side only has 125 miles on it. What do you guys think it is? I’m ocd and is driving me crazy. Help

Headrest’s. Take them out and pull apart the rods holding them in

 

Also check your tire jack being properly secured

 

3rd check the bolts holding in the seats. They can be loose. 
 

4th is spoiler. 
 

5th is window itself

 

i had dealer end up fixing all of these like 1st month of ownership. Really quiet now. 
 

take care. 

[MASONV88888888]

Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.

 

I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window.

To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.

 

I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.

 

I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.

 

Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.

[GN2018]

I've tried everything and still have the rattle.  My next thing to eliminate is the seatbelt connection on the real pillar.  The cover seems loose and could be the source.  I found one of my grandsons video games in the back seat rest compartment and had a glimmer of joy, but that wasn't it.  I'll keep trying.

 

ETA - I rode in the back and it's clearly something behind the seat.  While sitting in the seat, the sounds goes away.  Good news is that I can replicate the sound by striking the back seat rest/cushion near the top corner (side nearest the c pillar).

 

Now I have to figure out how to pull the seat off or down to see what's going on behind it.

Edited July 29 by GN2018