I took mine back today for the second time. I was promptly told that "there is nothing that we can do" however they changed out some retainers. After about 10 minutes in the vehicle, the seat started to slip again. This is getting old. I called back to the dealership and was told again "there is nothing that we can do". I have called GM and they seem to think that there is something that can be done. Waiting on the dealership to call me back since GM has reached out directly.
2014 Silverado LT 35000 miles.