My drivers side power seat has been doing this for the past year and finally got tired of it not working. If I sit in the seat it stops working however if Im not in it it works fine. I weigh 165lbs so its not from being to heavy and it seems like the wires under the seat are not pinched. My controls are on the side of the seat and I do have the heated seats lumbar etc. Did you get any resolution or fix for this? I have the 2007 1/2 GMC 2500HD Duramax crewcab longbed. Never had any issues with the truck until this.