Unfortunately I have had one, and now it appears two.
1) The day I took delivery, I noticed a sound coming from the passenger front door (or so I thought). It was almost like a rubbing sound or something seemed loose. I tracked it down to a clip in the headliner. Dealer did great and fixed it (opened a case with GM). I suppose they just put some noise dampening felt tape or something to stifle the clip, but regardless, no more noise.
UNTIL last week. Now there is a clip making noise in the 2nd row driver side. So, I figure I'm headed for another dealer visit. While I was researching it on your site, I noticed the forum on the leaking problem several Tahoe owners are having from the sunroof (or bad drain lines, etc). I thought "whew...I'm glad I'm not dealing with THAT issue," until someone recommended pulling the driver side front all-weather mat and seeing if the carpet is wet. I literally ran to my Suburban, pulled the mat and it dripped everywhere on the underside as I was pulling it out of the vehicle. I have a 7am appointment tomorrow at the dealer. This simply shouldn't be happening.
12.22.20 UPDATE:
Dealer visit and some positive steps.
1) The clip noise - dealer verified the clicking sound and did the same fix on that area, but went ahead and did the fix all the way around the headliner. An extra-mile step that was much appreciated, and the clicking noise is GONE.
2) Water - Dealer verified my soaked carpet on the driver side. They also verified that the drain hose was not even attached to the grommet at the firewall from the factory. That repair was done. They also honored my request to do water extraction on the carpet and check all wiring underneath as well as the airbag and any wiring in the A-pillar for damage. I had also requested that they open a case with GM to replace the carpet. That was done and the carpet is ordered. I now have an opportunity to verify the fix with carpet that will ultimately be replaced (and who knows how long that backorder is, but at least it's ordered).
3) While it was in there, I had asked the dealer to check some noises since I'm not sure what noises are "normal" yet or not. For example, when I approach the vehicle with the FOB, I hear almost a small grinding noise underneath the vehicle (this is when the bowtie also lights up in the back). It almost sounds like the APU on an old MD-88 airliner that would be grinding underneath the passenger compartment - only not as loud. They opened a case and spoke with GM and verified it is "normal." More importantly, I now have it logged in the service history so if it ever does become something, I can point back to it.
SO - low marks for GM's quality control and Operations Management. HIGH HIGH HIGH marks for my dealership. Thankfully, they were willing to be part of the solution rather than part of the problem.