GM Service Manual Online
For 1990-2009 cars only

Object Number: 1657638  Size: B3

The controls used to operate the power lumbar feature are located on the outboard side of the seats.

    • To increase lumbar support, press and hold the front of the control.
    • To decrease lumbar support, press and hold the rear of the control.
    • To raise the height of the support, press and hold the top of the control.
    • To lower the height of the support, press and hold the bottom of the control.

Let go of the control when the lower seatback reaches the desired level of support.

Your vehicle has a memory function which allows seat settings to be saved and recalled. See Memory Features for more information.

Keep in mind that as your seating position changes, as it may during long trips, so should the position of your lumbar support. Adjust the seat as needed.