The lumbar support is too much inflated when I drive.

It seems to deflate when the car has been stopped and then inflate without me doing anything when driving.

It's creates too narrow of a radius for my back and that hurts.

I have been trying to find a good setting but when I sat down in the driver's seat just now after it had been parked for a while the lumbar was good.

But when I drive it seems to start inflating.

Or could it be that it inflates simply when the ignition is on?

Why does it do that and how can I stop this?

It really hurts my back (and I usually don't have back pain)

 

The Lumbar Support system and all seat adjustments are controlled by the Rear SAM, but all references to Lumbar are not included in their wiring diagrams.

Remove the back panel to the front seat and locate the lumbar bladder and disconnect the elec.connector to it.

Post back with results.

 

Yes, I will do that! Thank you!