Drivers side manual lumbar handle stuck in full inflate position?

It is more like a cable and an adjuster level. Have you tried releasing the lumber without sitting in the seat? This may help, also here is how the lumber works so you can see what's going on in the diagrams below. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Didn’t help.

Maybe you can upload a quick video of the problem so I can see what's going on? You can upload the file in your response.

No video available. Handle wont move, bladder fully inflated.

The bladder must be over extended and not able to be adjusted, I would remove the seat and disable per the instructions to see what happens and what is stuck not allowing the adjustment to comes back. You can put the seat on a work bench so it is easier to work on.

Thanks, that was my next move.

Please let us know what you find. We are interested to see what it is.

Had to take the seat apart.

So what did you find?

Still working on it. Managed to get the bladder to deflate, mostly.