GM Service Manual Online
For 1990-2009 cars only

Object Number: 810599  Size: A2

If your vehicle has power lumbar adjustment, you can use it to increase or decrease lumbar support in the lower seatback. The control is located on the outboard side of the seat cushion.

    • To increase support in the lower back area, press and hold the front of the control. Let go of the control when the lower seatback reaches the desired level of support.
    • To decrease support in the lower back area, press and hold the rear of the control. Let go of the control when the lower seatback reaches the desired level of support.

You can also reshape the back wing area of the lower seatback.

    • To increase support in the wing area of the lower seatback, press and hold the top of the control. Let go of the control when the lower seatback reaches the desired level of support.
    • To decrease support in the wing area of the lower seatback, press and hold the bottom of the control. Let go of the control when the lower seatback reaches the desired level of support.