Manual Lumbar
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The manual front seat backrest lumbar and handle is mounted to the side of the seat backrest frame. The manual lumbar actuator rotates pulling a cable to move the backrest lumbar in or out.