Driver's...OK
I checked your older post and found-out.
I have similar problems such the seat coming up if you lift off, the whole seat rocking back and forth if you tug on it from outside, a shift around some curves and the infamous sinking that happens over a shor time.
I just spoke with my local dealer and they want two hours to check the seat!!! Unbelievable that they would want me to have to leave the car, get a rental and all so they can check this. In addition, they claim to have no knowledge of the problem.
All else with this truck is great. I love the vehicle and actually could live with this if it doesn't get any worse, but I do have a warranty and and the extension...so I want them to fix it!