GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Avalanche - 4WD 🢒 Body 🢒 Seats 🢒 Driver or Passenger Seat Back Cushion Frame Replacement

Removal Procedure
  1. Remove the seat from the vehicle. Refer to Front Seat Replacement - Bucket .
  2. Remove the head restraint and guides. Refer to Head Restraint Replacement .
  3. Remove the seat trim panel. Refer to Front Seat Trim Panel Replacement .

    4. Object Number: 407184 Size: SH
  4. Disconnect the lumbar cable (6) underneath the seat cushion (disconnect the lumbar wire harness if equipped with power lumbar).
  5. Remove the seat back trim cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  6. Remove the lumbar assembly (or power lumbar/bolster assembly if equipped). Refer to Front Seat Lumbar Support Replacement .
  7. Remove the seat belt retractor. Refer to Seat Belt Retractor Replacement - Left Front or Seat Belt Retractor Replacement - Right Front .

    8. Object Number: 386187 Size: SH
  8. Remove the inboard pivot bolt (1).
  9. Remove the recliner arm attachment bolts (2).
  10. Remove the frame from the vehicle.
  11. Transfer all necessary components to the new seat back frame.

Installation Procedure
  1. Position the seat back frame on the seat.

    2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 386187 Size: SH
  2. Install the recliner arm attachment bolts (2).

    3. Tighten
    Tighten the bolts to 53 N·m (39 lb ft).

  3. Install the inboard pivot bolt (1).

    4. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).

  4. Install the seat belt retractor. Refer to Seat Belt Retractor Replacement - Left Front or Seat Belt Retractor Replacement - Right Front .
  5. Install the lumbar assembly (or power lumbar/bolster assembly if equipped). Refer to Front Seat Lumbar Support Replacement .
  6. Install the seat back trim cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .

    7. Object Number: 407184 Size: SH
  7. Connect the lumbar cable (6) underneath the seat cushion (disconnect the wire harness if equipped with power lumbar).
  8. Install the seat trim panel. Refer to Front Seat Trim Panel Replacement .
  9. Install the head restraint and guides. Refer to Head Restraint Replacement .
  10. Install the seat into the vehicle. Refer to Front Seat Replacement - Bucket .