GM Service Manual Online
For 1990-2009 cars only

Front Seat Lumbar Support Replacement for Cadillac DeVille 1998

Removal Procedure

  1. Remove the seatback cover.
  2. Remove the cushion. Refer to Front Seat Back Trim Replacement


    Object Number: 315304  Size: SH
  3. Disconnect the electrical connectors (4).
  4. In order to release the power lumbar assembly (5), open the retainers on the 4 corners.
  5. Remove the power lumbar assembly (5).

Installation Procedure


    Object Number: 315304  Size: SH
  1. Install the power lumbar assembly (5).
  2. In order to retain the power lumbar assembly, close the retainers on the 4 corners.
  3. Connect the electrical connectors (4) .
  4. Install the seatback cover. Install the cushion. Refer to Front Seat Back Trim Replacement