Help with power seat

[DandS]

Still learning systems on my new Canyon Star without benefit of an owner's manual (they have not printed the 2010 version yet) and have a question relative to the power seat in my rig. I pretty much figured out the side controls which activate most functions, but there is a rocker switch on the front of the seat which, when pushed, makes a buzzing sound but I don't see any perceptible movement of the seat. What is the function of that rocker switch ??

[siggyd]

Is it TILT or LUMBAR support,sit in the seat and activate the switch.

["007"]

Its for a inflation or deflation of your lumbar back support.

[DandS]

Thanks guys - it is indeed the lumbar support system. I wasn't sitting in the seat when I was operating it so didn't experience any movement.