GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 278885  Size: SH
  1. Remove the front bucket seat. Refer to Seat Replacement .
  2. Remove the lumbar knob and the accouter from the driver's seat, if equipped. Refer to Front Seat Lumbar Support Replacement .
  3. Remove the front bucket seat cushion trim panel screws.
  4. Remove the front bucket seat cushion trim panel from the recliner mechanism.
  5. Remove the front bucket seat recliner bolts (6).
  6. Remove the front bucket seat back pivot bolt (3).
  7. Remove the front bucket seat back (1) from the front seat cushion (5).
  8. If lumbar equipped, route the cable through the seat cushion (5).

Installation Procedure


    Object Number: 278885  Size: SH
  1. Install the front seat back (1) to the front seat cushion (5).
  2. If lumbar equipped, route the cable through the seat cushion (5).

    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.

  3. Install the front bucket seat back pivot bolt (3).
  4. Tighten
    Tighten the pivot bolt to 23 N·m (17 lb ft).

  5. Install the front bucket seat recliner bolts.
  6. Tighten
    Tighten the recliner bolts to 24 N·m (18 lb ft).

  7. Install the front bucket seat cushion trim panel to the recliner mechanism.
  8. Install the front bucket seat cushion trim panel screws.
  9. Tighten
    Tighten the screws to 3 N·m (27 lb in).

  10. Install the lumbar knob and the accouter to the driver's seat, if equipped. Refer to Front Seat Lumbar Support Replacement .
  11. Install the front seat. Refer to Seat Replacement .