GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. If equipped with a power seat adjuster, raise the seat to the full up position.
  2. Remove the front seat from the vehicle. Refer to Driver or Passenger Seat Replacement .

  3. Object Number: 857523  Size: SH
  4. Remove the seat back cover enough to expose the recliner mechanism bolts (2, 7). Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Remove the recliner bolts (2, 7).
  6. Remove the seat back (1) from the seat assembly.

  7. Object Number: 856834  Size: SH
  8. Remove the seat cushion from the seat adjuster assembly (4).
  9. 6.1. Remove the recliner handle. Refer to Driver or Passenger Seat Recliner Handle Replacement .
    6.2. Remove the power seat adjuster switch, if equipped. Refer to Power Seat Switch Replacement .
    6.3. Remove the bolts securing the seat cushion frame (3) to the adjuster assembly  (4).
  10. Release the seat cushion J channel retainers from the seat cushion frame.
  11. Release the hook and loop strips that retain the seat cushion cover (1) to the seat cushion pad (2).
  12. Remove the seat cushion cover from the foam pad.
  13. Remove the foam pad (2) from the cushion frame (3).
  14. Caution: Replace the passenger presence system as a complete assembly to prevent possible injury to the occupant. All the components in the service kit are assembled and calibrated as a unit. Using only some of the components in the service kit will cause the passenger presence system to operate improperly.

  15. If replacing the front passenger seat cushion pad, you must also replace the inflatable restraint passenger presence system. Refer to Inflatable Restraint Passenger Presence System Replacement - Front .

Installation Procedure


    Object Number: 856834  Size: SH
  1. When replacing a seat cushion pad (2) on a seat equipped with a power adjuster, remove the perforated section (9) on the front of the cushion pad (2).
  2. Position the foam pad (2) to the seat cushion frame (3).
  3. Position the seat cushion cover (1) to the foam pad (2).
  4. Engage the J channel retainers to secure the seat cushion cover (1) to the seat cushion frame (3).
  5. When replacing a seat cushion cover on a seat equipped with a power seat adjuster proceed with the following steps:

  6. Object Number: 856954  Size: SH
    5.1. Locate the opening (1) for the power seat switch within the bracket, through the cover.
    5.2. Using a razor blade make a "X" cut (2) within the opening of the switch bracket.
  7. Install the power seat switch. Refer to Power Seat Switch Replacement .

  8. Object Number: 857523  Size: SH
  9. Locate the position of the recliner mechanism rod (6) through the cushion cover.
  10. Make a small "X" cut just large enough for the recliner rod (6) to go through.
  11. Slip the cover over the recliner mechanism rod (6).
  12. Install the recliner handle. Refer to Driver or Passenger Seat Recliner Handle Replacement .
  13. Position the seat back to the seat cushion assembly.
  14. Notice: Refer to Fastener Notice in the Preface section.

  15. Install the bolts (3, 7).
  16. Tighten
    Tighten the bolts to 32 N·m (24 lb ft).


    Object Number: 856834  Size: SH
  17. Position the seat assembly to the seat adjuster assembly (4).
  18. Install the bolts to secure the seat assembly to the adjuster (4).
  19. Tighten
    Tighten the bolts to 25 N·m (18 lb ft).

  20. Install the seat into the vehicle. Refer to Driver or Passenger Seat Replacement .
  21. Caution: To avoid personal injuries, re-zero the passenger presence system whenever you remove or replace the seat cushion or trim. Failure to do so may cause the system to malfunction.

  22. Re-zero the inflatable restraint passenger presence system whenever the seat cushion or any component of the passenger presence system is removed. Refer to Control Module References .