GM Service Manual Online
For 1990-2009 cars only

Front Seat Adjuster Replacement Driver Seat - SL, SL1, SC1, SW1

Removal Procedure

Important: LHD shown, RHD similar


    Object Number: 868126  Size: SH
  1. Remove the seat from the vehicle. Refer to Front Seat Replacement - Bucket .
  2. Remove the recliner handle.
  3. Remove the seat adjuster side cover.

  4. Object Number: 868524  Size: SH
  5. Remove the seat belt harness.

  6. Object Number: 868517  Size: SH
  7. Remove the seat belt buckle.

  8. Object Number: 863874  Size: SH
  9. Remove the recliner lever and nylon spacer.

  10. Object Number: 863412  Size: SH
  11. On the coupe passenger seat, remove the clip attaching the E-Z entry cable to the inboard recliner, and separate the cable from the recliner.

  12. Object Number: 859205  Size: SH
  13. Disengage the seat cushion cover rear J-strip. Refer to the following:
  14. • Seat Cover (1)
    • Cushion Frame (2)
    • Foam Pad (3)
    • Cross Tube (4)
    • Seat Cover J-Strip (5)

    Object Number: 866897  Size: SH
  15. Loosen the adjuster seat bolts to assist in removal of the seatback.

  16. Object Number: 866888  Size: SH
  17. Remove the recliner bolts from the seat back assembly with the recliner mechanisms and the cross tube attached to the seat back.

  18. Object Number: 866900  Size: SH
  19. Disconnect the seat adjuster cross wire.

  20. Object Number: 886553  Size: SH
  21. Remove the seat adjusters from the seat cushion assembly.

Installation Procedure

Important: LHD shown, RHD similar.

  1. If a new seat adjusters is to be installed, transfer the adjuster return spring from the old adjuster to the new adjuster.
  2. On the coupe, if a new seat adjusters is to be installed, transfer the E-Z entry cable to the new inboard seat adjuster.
  3. Install the new seat adjusters to the cushion assembly using four adjuster bolts. Do not tighten at this time.

  4. Object Number: 866900  Size: SH
  5. Connect the seat adjuster cross wire.

  6. Object Number: 863314  Size: SH
  7. Install the seat back assembly, with recliners and cross tube attached, to the seat adjusters.
  8. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the recliner with the seat adjuster bolts.
  10. Tighten
    Tighten the front seatback recliner bolts to 27 N·m (20 lb ft).

  11. Wrap the seat cushion cover rear flap to the cover up recliner cross tube and engage the seat cushion cover rear J-strip to the seat cushion frame.

  12. Object Number: 866897  Size: SH
  13. Tighten the seat adjuster bolts.
  14. Tighten
    Tighten the front seat adjuster bolts to 27 N·m (20 lb ft).


    Object Number: 863409  Size: SH
  15. On the coupe passenger seat, attach the E-Z entry cable to the inboard recliner and install the cable retaining clip.

  16. Object Number: 863874  Size: SH

    Caution: Apply Loctite 242® Threadlocker, or equivalent, on recliner lever fasteners before installing.

  17. Install the recliner lever and nylon spacer.
  18. Tighten
    Tighten the recliner lever fastener to 3 N·m (27 lb in).

    Caution: Apply Loctite 242® Threadlocker US P/N 12345382 (Canadian P/N 10953489), or equivalent, on all restraint bolts/nuts before installation. Failure to use such threadlocker correctly may result in personal injury.

  19. Apply Loctite 242® Threadlocker (or equivalent) to the seat belt buckle fastener. Position the side seat mount buckle unit 25 degrees forward from vertical to the side of the seat and install the bolt.
  20. Tighten
    Tighten the seat belt buckle seat adjuster bolt to 75 N·m (55 lb ft).


    Object Number: 868524  Size: SH
  21. On the drivers side, route the seat belt buckle wire to the seat adjuster and secure the wire to the adjuster with the seat belt wire attaching clips.

  22. Object Number: 868124  Size: SH
  23. Install the seat adjuster side cover.
  24. Tighten
    Tighten the seat side cover fasteners to 2.5 N·m (22 lb in).

  25. Install the recliner handle.
  26. Tighten
    Tighten the recliner handle fastener to 3 N·m (27 lb in).

  27. Install the seat into the vehicle. Refer to Front Seat Replacement - Bucket .