Popping noise after rain/carwash?

CriticalThinker

TYF Newbie
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Dec 3, 2021
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I’ve noticed a popping/crackling noise overhead after a heavy rain or a carwash in my ‘21. There are no leaks, no problem with the sunroof, just a noise that seems to last for 20 minutes or so afterwards. Anybody else?
 

todayusay

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talk to your dealer...if they don't know about it, I'd honestly find another dealer. our 21 Yukon had the same issue and our local dealer gave us the run around for 4-5 months because they apparently didn't know about the TSB. got it fixed a few days after the local dealer put us off for the 4th time saying they were waiting on parts...yeah ok.
 

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