Called Chevy Customer Satisfaction Center - re. the seats. As soon as I got in touch with the rep., he was already aware of the problem. He advised me that the engineers are currently working to solve the problem but cannot guarantee when they will come back w/ solution.
Also called the dealership. They are also aware of it. They received a lot of complaints. The guy said that he would personally call me when they come back with a resolution. I will keep you posted.
I am passing this along to other friends who owns the Tahoe as I do so they also call.
You had better luck than I just did. The person I reached at Chevrolet Customer Satisfaction claimed she could not find the original or the revised TSB number and said Chevy had no knowledge of the issue at all. She called the dealer who claimed no knowledge of it either and said he showed no record of any concern in my file. I had to give her the service writer's name and she called them again and magically found some reference to my gripe. Makes me wonder exactly what electronic record her initial contact was supposedly looking at compared to what the service writer found.
Once she could tell I wasn't going away she said she'd elevate it to whatever the hell the next level is and I should get some sort of update in the next couple of days. Gotta say, for a longtime GM buyer and former GM employee, I'm getting pretty chapped about their "we don't believe you" response to this.