GM Service Manual Online
For 1990-2009 cars only

Driver or Passenger Seat Cushion Frame Replacement Bucket

Removal Procedure

  1. Remove the seat from the riser. Refer to Front Seat Replacement - Bucket .
  2. Remove the headrest and the guides. Refer to Front Seat Head Restraint Replacement .

  3. Object Number: 276756  Size: LH
  4. Remove the seat cushion pad (2). Refer to Seat Cushion Trim Cover and Pad Replacement .
  5. Important: Note the position and the length of the bolts removed.

  6. Remove the 2 bolts retaining the seat back hinge to the seat cushion frame (3).
  7. Remove the 2 bolts retaining the seat back recliner (5) to the seat cushion frame.
  8. Important: Complete the following steps ONLY if the seat is equipped with a lumbar support.

       • Remove the 2 screws retaining the lumbar cable assembly to the seat cushion frame.
       • Turn the threaded black end of the assembly in order to expose the retaining slot for the cable.
       • Remove the cable from the assembly.

  9. Remove the seat cushion frame (3) from the seat assembly.

Installation Procedure


    Object Number: 276756  Size: LH

    Important: Complete the following steps ONLY if the seat is equipped with a lumbar support.

       • Insert the lumbar adjuster cable into the slot in the assembly.
       • Turn the threaded black end of the assembly until the slot retaining the cable is concealed.
       • Install the 2 screws retaining the lumbar cable assembly to the seat cushion frame (3).

  1. Install the seat cushion frame (3) to the seat assembly.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Install the bolts to the original locations.

  3. Install the 2 bolts retaining the seat back recliner (5) to the seat cushion frame.
  4. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).

  5. Install the 2 bolts retaining the seat back hinge to the seat cushion frame (3).
  6. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).

  7. Install the seat cushion pad (2). Refer to Seat Cushion Trim Cover and Pad Replacement .
  8. Install the seat to the riser (20). Refer to Front Seat Replacement - Bucket .

Driver or Passenger Seat Cushion Frame Replacement Split Bench

Removal Procedure


    Object Number: 276756  Size: LH
  1. Remove the seat from the riser (20). Refer to Split Bench Seat Replacement .
  2. Remove the seat cushion pad (2). Refer to Seat Cushion Trim Cover and Pad Replacement .
  3. Important: Note the position of the bolts removed.

  4. Remove the 2 bolts retaining the seat back hinge to the seat cushion frame (3).
  5. Important: Note the position of the bolts removed.

  6. Remove the 2 bolts retaining the seat back recliner (5) to the seat cushion frame (3).
  7. Important: 

       • Remove the 2 screws retaining the lumbar cable assembly to the seat cushion frame (3).
       • Turn the threaded black end of the assembly in order to expose the retaining slot for the cable.
       • Remove the cable from the assembly.

  8. Remove the seat cushion frame (3) from the seat assembly.

Installation Procedure


    Object Number: 276756  Size: LH

    Important: Complete the following steps ONLY if the seat is equipped with a lumbar support.

       • Insert the lumbar adjuster cable into the slot in the assembly.
       • Turn the threaded black end of the assembly until the slot retaining the cable is concealed.
       • Install the 2 screws retaining the lumbar cable assembly to the seat cushion frame.

  1. Install the seat cushion frame (3) to the seat assembly.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Install the bolts in the original locations.

  3. Install the 2 bolts retaining the seat back recliner (5) to the seat cushion frame (3).
  4. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).

    Important: Install the bolts in the original locations.

  5. Install the 2 bolts retaining the seat back hinge to the seat cushion frame (3).
  6. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).

  7. Install the seat cushion pad. Refer to Seat Cushion Trim Cover and Pad Replacement .

  8. Object Number: 276776  Size: SH
  9. Install the seat to the riser (2). Refer to Split Bench Seat Replacement .

Driver or Passenger Seat Cushion Frame Replacement Bench Seat

Removal Procedure


    Object Number: 276664  Size: MH
  1. Remove the seat retaining bolts (13).
  2. Remove the right and left seat belt bolts from the floor.
  3. Pull the seat belts through the seat.
  4. Remove the seat from the vehicle.
  5. Remove the bolts (6) and seat riser (7) from the seat.
  6. Remove the push pins and rods from the seat material and frame.
  7. Release the springs from the bottom of the seat adjuster.
  8. Remove the bolts and trim from the sides of the seat.
  9. Remove the seat back frame from the seat frame.
  10. Remove the seat cover (17) from the seat.
  11. Remove the foam pad (15) from the seat.

Installation Procedure


    Object Number: 276664  Size: MH
  1. Install the foam pad (15) to the seat.
  2. Install the seat cover (17) to the seat.
  3. Install the seat back frame to the seat frame.
  4. Install the bolts and trim to the sides of the seat.
  5. Install the springs to the bottom of the seat adjuster.
  6. Install the push pins and rods to the seat material and frame.
  7. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8. Install the bolts (6) and seat riser (7) to the seat.
  9. Tighten
    Tighten the bolts to 55 N·m (41 lb ft).

  10. Install the seat belts through the seat.
  11. Install the seat to the vehicle.
  12. Install the right and left seat belt bolts to the floor.
  13. Install the seat retaining bolts (13).
  14. Tighten
    Tighten the bolts to 55 N·m (41 lb ft).