Ok Guys,
I had my Tahoe to the dealer today for the seat fix. They said they put the shims in. So on the way home I made sure I was taking a lot of turns. Didn't feel any movement. They didn't have my order ready so they are mailing it to me or so they say. They were also supposed to do the passenger seat too. I guess when my hubby is driving I will get a chance to see if they actually did fix it. I will definitely keep you up to date on if it starts up again. From what I can tell if it does it doesn't take too long. I have 21,000 on my 2015 so I am sure I will be driving a lot.