My wife's '11 LTZ just started a no front/back drivers seat issue. All other movements work. I can see the motor jump everytime you energize a fore/aft movement by the seat switch, but the seat does not move.

Any help, ideas, or suggestions appreciated!

 

You most likely have something jamming up the seat track. A while back another member had a pen stuck in their seat track which prevented the seat from moving forward/rearward.