OK I am assuming the handle that is on the left side of my driver's seat is broken. I pull up on it and nothing happens. Looked in the owner's manual an of course no mention of it only has info on electric seats. Can anyone tell me what it is supposed to do. Guessing it is height adjuster or lumber adjuster. Anyone know how to fix it?

Thanks

 

That allows the seat to move up/down a bit. You have to push the seat in the desired direction