GM Service Manual Online
For 1990-2009 cars only

Front Seat Adjuster Replacement 2-Way Fold Flat

Removal Procedure


    Object Number: 873650  Size: SH

    Important: Replace all seat adjusters as an assembly. Replace both sides at the same time.

  1. Remove the seat from the vehicle. Refer to Front Seat Replacement - Bucket .
  2. Remove the screws from the recliner trim panels of the inner and the outer seat back.
  3. Remove the inner and the outer trim panels.
  4. Remove the screws from the outer trim panel of the seat cushion.
  5. Remove the outer trim panel.

  6. Object Number: 873769  Size: SH
  7. Remove the screw from the inner trim panel of the seat cushion.
  8. Remove the inner trim panel.

  9. Object Number: 873533  Size: SH
  10. Remove the seat adjuster handle by squeezing both sides toward the center of the seat.

  11. Object Number: 873772  Size: SH
  12. Remove the rear J-hook retainer from the seat cushion trim cover.

  13. Object Number: 875188  Size: SH
  14. Remove the seat cushion frame bolts.
  15. Remove the seat cushion assembly.

  16. Object Number: 875187  Size: SH
  17. Remove the outside bolt which attaches the outboard recliner to the adjuster.

  18. Object Number: 873780  Size: SH
  19. Remove the inside bolt which attaches the outboard recliner to the adjuster.
  20. Remove the outboard adjuster.

  21. Object Number: 875194  Size: SH
  22. Remove the seat belt buckle bolt.
  23. Remove the seat belt buckle.

  24. Object Number: 873780  Size: SH
  25. Remove the inside bolt which attaches the inboard recliner to the adjuster.
  26. Remove the inboard adjuster.

Installation Procedure


    Object Number: 873780  Size: SH
  1. Install the inboard adjuster to the seat recliner.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the inside bolt to the inboard recliner.
  4. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).


    Object Number: 873781  Size: SH
  5. Install the outboard adjuster to the seat recliner.
  6. Install the outside recliner bolt.
  7. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).

  8. Install the inside recliner bolt.
  9. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).


    Object Number: 875194  Size: SH
  10. Install the seat belt buckle to the seat.
  11. Install the bolt to the seat belt buckle.
  12. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).


    Object Number: 875188  Size: SH
  13. Install the seat cushion frame.
  14. Install the bolts to the seat cushion assembly.
  15. Tighten
    Tighten the bolt to 12 N·m (106 lb in).


    Object Number: 873772  Size: SH
  16. Install the fold-flat cable into the hook in the seat cushion frame.
  17. Install the rear J-hook retainer to the seat cushion trim cover. Ensure that the material flap is over the fold-flat cable.

  18. Object Number: 873533  Size: SH
  19. Install the seat adjuster handle.

  20. Object Number: 873650  Size: SH
  21. Install the inner trim panel to the seat cushion.
  22. Install the inner trim panel screws.
  23. Tighten
    Tighten the screws to 1 N·m (9 lb in).

  24. Install the inner trim panel to the seat back recliner.
  25. Install the inner trim panel screws.
  26. Tighten
    Tighten the screws to 1 N·m (9 lb in).

  27. Install the outer trim panel to the seat cushion.
  28. Install the trim panel screws.
  29. Tighten
    Tighten the screws to 1 N·m (9 lb in).

  30. Install the outer trim panel to the seat back recliner.
  31. Install the trim panel screws.
  32. Tighten
    Tighten the screws to 1 N·m (9 lb in).

  33. Install the seat in the vehicle. Refer to Front Seat Replacement - Bucket .
  34. Verify the seat adjusters for proper operation.

Front Seat Adjuster Replacement Non-Fold Flat

Removal Procedure

    Important: Replace all seat adjusters as an assembly. Replace both sides at the same time.

  1. Remove the front seat. Refer to Front Seat Replacement - Bucket .
  2. Remove the seat cushion side trim. Refer to Front Seat Cushion Outer Trim Panel Replacement .

  3. Object Number: 875199  Size: SH
  4. Position the seat back forward.
  5. Disconnect the J-hook retainer at the bottom of the front seat back.
  6. Disconnect the J-hook retainer on the inboard side of the seat.
  7. Recline the seat back.
  8. Remove the seat back trim cover from between the seat back and the cushion.

  9. Object Number: 873771  Size: SH
  10. Raise the seat back trim cover enough to expose the lower seat back frame and recliner springs.
  11. Adjust the seat back position until the notches in the seat back frame line up with the seat back springs.
  12. Using a suitable tool, carefully slide the springs into the notches. Ensure that the springs are completely engaged in the slots.

  13. Object Number: 876774  Size: SH
  14. Adjust the seat back forward to allow the springs to be lifted from the impact tube.

  15. Object Number: 875183  Size: SH
  16. Remove the recliner handle spring.
  17. Remove the recliner handle screw.
  18. Remove the recliner handle.

  19. Object Number: 875184  Size: SH
  20. Remove the nuts from the outboard seat belt frame.
  21. Remove the teardrop washer bolt.
  22. Remove the teardrop washer from the seat.

  23. Object Number: 876772  Size: SH
  24. Remove the nuts from the inboard seat back frame.
  25. Lift the seat back out from between the seat adjusters.
  26. On the 4-way driver seats, raise the seat cushion to the highest position.

  27. Object Number: 873533  Size: SH
  28. Remove the seat adjuster handle by squeezing the both sides toward the center of the seat.

  29. Object Number: 876753  Size: SH
  30. Remove the bolts from the seat cushion frame. Disconnect the rosebud fastener which holds the driver seat belt buckle wiring to the cushion frame.
  31. Remove the seat cushion assembly from the seat.

  32. Object Number: 875179  Size: SH
  33. Remove the bolt from the seat belt buckle.
  34. Remove the seat belt buckle from the inboard adjuster.

  35. Object Number: 873778  Size: SH
  36. Remove the bolt from the impact tube.
  37. Remove the impact tube from between the adjusters.

  38. Object Number: 875191  Size: SH
  39. On the 4-way driver seats, remove the seat cushion riser bar.

Installation Procedure


    Object Number: 873778  Size: SH
  1. Install the impact tube between the adjusters.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the bolt to the impact tube.
  4. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 875191  Size: SH
  5. On the 4-way driver seat, install the seat cushion riser bar.

  6. Object Number: 875179  Size: SH
  7. Install the seat belt buckle to the inboard seat adjuster.
  8. Install the bolt to the seat belt buckle.
  9. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).


    Object Number: 876753  Size: SH
  10. Position the seat cushion assembly between the adjusters.
  11. Install the bolts to the seat cushion frame.
  12. Tighten
    Tighten the bolts to 12 N·m (106 lb in).


    Object Number: 873533  Size: SH
  13. Install the rosebud fastener, holding the driver seat belt buckle wiring harness to the cushion frame.
  14. Install the seat adjuster handle.

  15. Object Number: 888311  Size: SH
  16. Install the seat back between the adjusters. Ensure that the locator tabs are properly seated in both adjusters.

  17. Object Number: 876772  Size: SH
  18. Install the nuts to the inboard seat back frame.
  19. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  20. Install the teardrop washer.

  21. Object Number: 875184  Size: SH
  22. Install the nuts to the outboard seat back frame.
  23. Tighten
    Tighten the nuts to 17 N·m (13 lb ft).

  24. Install the teardrop washer bolt.
  25. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).


    Object Number: 875183  Size: SH
  26. Install the recliner handle.
  27. Install the recliner handle bolt.
  28. Tighten
    Tighten the bolt to 12 N·m (106 lb in).

  29. Install the recliner handle spring.

  30. Object Number: 876774  Size: SH
  31. Adjust the seat back forward until the seat back frame springs catch on the impact bar.

  32. Object Number: 875199  Size: SH
  33. Lower the seat back trim cover.
  34. Connect the trim cover J-hook retainers.
  35. Install the seat cushion side trim. Refer to Front Seat Cushion Outer Trim Panel Replacement .
  36. Install the driver seat. Refer to Front Seat Replacement - Bucket .
  37. Verify the seat adjusters for proper operation.