edge,

It is actually not too bad... let me give it another try

1. The 3 squarish buttons are for you to select which sections of the seat back that you want lumbar support: button closest to the dash is for bottom section, button closet to the trunk is for top section. You can press one of these buttons, or up to two simultaneously (bottom + mid, or mid + top).

2. The turn dial is for you to specify the amount of support to be applied at the selected sections in step 1. 0 = min, 5 = max.

3. The wide button is for side bolster support. Push it forward to increase side support, backward to decrease. This works independently of steps 1 & 2.