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They removed the headliner and have confirmed there is a leak. They are struggling to identify the source at the moment. It is very small and basically drips where I showed. They said the usual suspects, back glass, rear roof spoiler do not seem to be the cause. I referred them to the GM Authority roof weld cracking procedure/issue. They have to keep it until next week unfortunately. GM social Media team says they will check on it next week. It's really frustrating such a new/expensive truck has an issue like this. They better fix it correctly.

Done.

I appreciate the responses. It's a 2024 Sierra 1500 Denali that was purchased mid January and production was October or november, I'll have to check my sticker. It was definitely produced during the time frame. My 2023 that was previously totaled did not have this issue and I visited the car wash way more

Is this the roof leaf that they stopped production to fix? I checked multiple times and they say my truck is not under a recall but I appear to have some leaking on my passenger side rear roof. I'm having it looked at tomorrow buy a dealer. What can I tell them to cut right down to the chase and not BS around? https://gmauthority.com/blog/2023/12/gm-releases-fix-for-2024-gmc-sierra-roof-panel-split/

Just got back into a GM from a stage 1 + tuned 8 speed 2013 RAM sport. I love driving that truck. So I was looking for a newer used truck...drove some tundras, older denali's, and as soon as I drove a 10 speed with the 6.2L I was sold. I had to sell my soul for this sports car of a truck. Don't even want to talk about the payment, but I love this truck.