Power Lumbar
WARNING: This page is about a different car, the 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
The 4-way power lumbar moves the lumbar in 4 possible directions: up/down and in/out. The power lumbar feature operates independent of the ignition position.
The power lumbar motors are hardwired to the seat control switch. The circuits are normally at ground through the seat control switch. An individual circuit is switched to power when a specific adjustment position is selected.
The driver seat power lumbar positions cannot be set or recalled using the memory feature. No sensors are provided for these positions.