GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 547146  Size: SH
  1. Remove the front seat assembly. Refer to Bucket Seat Replacement .
  2. Remove the head restraint. Refer to Front Seat Head Restraint Replacement .
  3. Remove the seat back trim cover. Refer to Front Seat Back Trim Replacement .
  4. Remove the seat back cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Remove the seat back frame. Refer to Front Seat Back Frame Replacement .

  6. Object Number: 547155  Size: SH
  7. Remove the block (2) from the lower seat frame (1).

  8. Object Number: 547149  Size: SH
  9. Using a flat-bladed tool, release the retainer in order to remove the shoulder belt adjustment/power actuator assembly.

  10. Object Number: 547152  Size: SH

    Important: Ensure the electrical connector does not catch on the inner seat back frame during removal of the shoulder belt adjustment/power actuator assembly.

  11. Firmly hold the seat back frame (1) in order to pull the shoulder belt adjustment actuator (2) from the seat back frame.
  12. Remove the power actuator assembly from the seat back frame.

Installation Procedure


    Object Number: 547152  Size: SH
  1. Feed the power actuator assembly wire harness down through the seat back frame.
  2. Install the shoulder belt adjustment/power actuator assembly (2).
  3. Carefully apply pressure to the shoulder belt adjustment/power actuator assembly in order to engage the power actuator assembly retainer (3) to the seat back frame (1).

  4. Object Number: 547155  Size: SH

    Important: Ensure the holes in the block (2) are aligned with the fastener holes in the seat back frame (1).

  5. Install the seat back frame retaining block.
  6. Ensure the electrical harness is not pinched and moves freely within the block.

  7. Object Number: 547146  Size: SH
  8. Install the seat back frame. Refer to Front Seat Back Frame Replacement .
  9. Install the seat back cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  10. Install the seat back trim. Refer to Front Seat Back Trim Replacement .
  11. Install the head restraint. Refer to Front Seat Head Restraint Replacement .
  12. Install the seat assembly. Refer to Bucket Seat Replacement .