GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38778 Door Trim Pad Clip Remover

Removal Procedure

  1. Disable the SIR system. Refer to SIR Disabling and Enabling or SIR Disabling and Enabling in SIR.
  2. Remove the seat cushion in order to gain access to the power seat switch. Refer to Front Seat Cushion Replacement .

  3. Object Number: 672423  Size: SH

    Important: Do not attempt to remove the lumbar switch knob (2) from the switch as breakage will occur.

  4. Remove the knobs (1) from the switch by gently prying them off using a flat-bladed tool.

  5. Object Number: 672429  Size: SH
  6. Use the J 38778 in order to remove the push in retainers located on the underside of the seat cushion frame.
  7. Remove the power seat switch bezel.
  8. Release the J channel retainers securing the seat cushion cover to the seat cushion frame in order to gain access to the power seat switch bracket.

  9. Object Number: 672437  Size: SH
  10. Use the J 38778 in order to remove the power seat switch bracket push-in fasteners.
  11. Remove the power seat switch and bracket from the seat cushion frame.
  12. Notice: Refer to Electrical Wiring Routing Notice in the Preface section.

  13. Disconnect the electrical connectors from the power seat switches.

  14. Object Number: 334118  Size: SH
  15. Use a flat-bladed tool in order to remove the switch from the bracket.

Installation Procedure

  1. Install the power seat switch into the switch bracket.
  2. Install the wiring harness in the position in which it was removed.
  3. Connect the electrical connectors to the power seat switches.
  4. Slide the bracket with the switches upward into the seat cushion frame.
  5. Install the retainers in order to secure the bracket and switches to the seat cushion frame.
  6. Install the seat cushion cover over the switches aligning the holes in the cover to the switch assembly.
  7. Position the power seat switch bezel over the switches.
  8. Install the power seat switch bezel fasteners.

  9. Object Number: 672647  Size: SH
  10. Install the power seat switch knobs (1).
  11. Install the seat cushion. Refer to Front Seat Cushion Replacement .
  12. Enable the SIR system. Refer to SIR Disabling and Enabling or SIR Disabling and Enabling in SIR.