Hope this helps.
Front Seat Lumbar Support Replacement 
1. Grasp the top portion of the seat back trim panel and pull out to release the push-in fasteners.
2. Firmly lift upwards to remove the seat back trim from the seat assembly.
3. Disconnect the lumbar motor (1) electrical connector.
4. Push in on the lumbar assembly (2) and disengage the assembly from the seat frame.
5. Remove the lumbar assembly.