2020 GMC Sierra 1500 - front windows cracking and clicking sound

[Steve Dubé]

Hi everyone ! Does anybody what can cause this ? At Highway speed (especially when road conditions are a little bit bumpy), the front windows won't stop "crackling / clicking" (see video attached). Good thing to mention : There is nothing loose that can vibrate in the cupholders in the doors. The sounds resonates through the glass itself > It seems to be coming from the bottom of the window rail, however it does not stop even if I apply pressure on the glass itself, or wedging my fingers into the rubber seals. Also, no plastic trims are loose and even if I apply pressure on the entire surface... the cracking sound does not stop. (I just drove 600Km and it did that all the way... which drove me crazy..!!). I got an appointment in few days at the dealership, but I wanted to know if  anybody every had this issue before with their GMC Sierra 2020 ? and if so, what was the issue ? Thanks !!

[Steve Dubé]

I just noticed watching the video on my computer that the clicking sound is not as distinctive as when I watch it on my phone. I extracted the this audio file from another video where you can hear it louder