GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the seat cushion outer trim panel. Refer to Seat Cushion Outer Trim Panel Replacement .
  2. Remove the switch bezel from the seat assembly. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .
  3. Remove the buttons from the switch (3).

  4. Object Number: 1333646  Size: SH
  5. Release the tabs (4) that retain the seat switch (3) to the seat bezel.

  6. Object Number: 1333639  Size: SH
  7. Disconnect the lumbar switch harness (1) from the seat harness.
  8. Remove the lumbar switch from the seat bezel.

Installation Procedure


    Object Number: 1333639  Size: SH
  1. Connect the lumbar switch harness (1) to the seat harness.

  2. Object Number: 1333646  Size: SH
  3. Install the lumbar switch (3) to the seat bezel. Verify that the retaining tabs (4) are fully seated.
  4. Install the buttons on the switch.
  5. Install the switch bezel assembly to the seat assembly. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .
  6. Install the seat cushion outer trim panel. Refer to Seat Cushion Outer Trim Panel Replacement .