1. The ignition must be set to On/Run or ACC/Accessory.
2. Locate the round selection control on the outboard side of the seat or, on some vehicles, on the door panel.
3. Turn the round selection control (on some vehicles, the inner up/down paddle of the switch) to view the Seating Control Display on the centre stack display — the adjustment options are illustrated for added clarity.
4. The round selection control adjusts the power lumbar; adjust it until the lumbar in the seat is enough to support the natural curve of the lower back and spine.