GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Eighty Eight 🢒 Body and Accessories 🢒 Seats 🢒 Driver or Passenger Seat Replacement

Driver or Passenger Seat Replacement Buick/Oldsmobile

Removal Procedure
  1. Remove the fasteners that retain the floor support covers.
  2. Remove the floor support covers.

    3. Object Number: 387265 Size: SH
  3. Remove the load bar cover.
  4. Move the seat to the full rearward position.
  5. Remove the front floor support covers.
  6. Remove the front nuts that retain the adjuster to the floor pan.
  7. Move the seat to the full forward position.

    8. Object Number: 314048 Size: MH

    Caution: On seats with a manual adjuster, failure to place the seat in the full forward position prior to removal of the rear attaching nuts could allow the seat track to suddenly spring forward, resulting in personal injury.

  8. Remove the rear nuts that retain the adjuster (3) to the floor pan. (The insert shows the manual adjuster.)
  9. Remove the load bar bolt (4).
  10. Tilt the seat forward.
  11. Disconnect the following components:
    12. • The electrical connectors (2)
    • The air hose (if equipped)
    • The HVAC duct (5) at the armrest (if equipped)
  12. Remove the rear seat cushion, prior to front seat removal. Refer to Rear Seat Cushion Replacement .
  13. Remove the left front seat out the left rear door, with the aid from an assistant.

Installation Procedure

    Object Number: 314048 Size: MH
  1. Install the front seat, with the aid from an assistant, through the left rear door opening.
  2. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.
  3. Connect or install the following components:
    4. • The electrical connectors (2)
    • The air hose (if equipped)
    • The HVAC duct (5) at the armrest (if equipped)

    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.

  4. Install the load bar bolt (4).

    5. Tighten
    Tighten the load bar bolt to 35 N·m (26 lb ft).

  5. Install the rear nuts in order to attach the adjuster (3) to the floor pan. (The insert shows the manual adjuster).

    6. Tighten
    Tighten the rear nuts to 34 N·m (25 lb ft).

  6. Install the front nuts in order to attach the adjuster (3) to the floor pan. (The insert shows the manual adjuster.)

    7. Tighten
    Tighten the front nuts to 34 N·m (25 lb ft).


    Object Number: 387265 Size: SH
  7. Move the seat to the full forward position.
  8. Install the load bar cover.
  9. Install the floor support covers front and rear.
  10. Install the floor support cover fasteners front and rear.

Driver or Passenger Seat Replacement Pontiac

Removal Procedure

    Object Number: 314052 Size: MH
  1. Remove the fasteners that retain the floor support covers.
  2. Remove the floor support covers.
  3. Remove the load bar cover.
  4. Move the seat to the full rearward position.
  5. Remove the front nuts (1) that attach the adjuster to the floor pan.
  6. Move the seat to the full forward position.

    7. Caution: On seats with a manual adjuster, failure to place the seat in the full forward position prior to removal of the rear attaching nuts could allow the seat track to suddenly spring forward, resulting in personal injury.

  7. Remove the rear nuts (2) that attach the adjuster to the floor pan.
  8. Remove the load bar bolt (3).

    9. Object Number: 412269 Size: SH
  9. Tilt the seat rearward.
  10. Disconnect the following components:
    11. • The electrical connectors
    • The air hose
    • The HVAC duct at the armrest, where applicable.
  11. Remove the seat with aid from an assistant.

Installation Procedure

    Object Number: 314048 Size: MH
  1. Install the seat with aid from an assistant.

    2. Object Number: 412269 Size: SH
  2. Connect or install the following components:
    3. • The electrical connectors (2)
    • The air hose
    • The HVAC duct at the armrest, where applicable.

    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 load bar bolt (3).

    4. Tighten
    Tighten the load bar bolt to 42 N·m (31 lb ft).

  4. Install the rear nuts in order to attach the adjuster to the floor pan.

    5. Tighten
    Tighten the rear nuts (2) to 34 N·m (25 lb ft).

  5. Install the front nuts in order to attach the adjuster to the floor pan.

    6. Tighten
    Tighten the front nuts (1) to 34 N·m (25 lb ft).

  6. Move the seat to the full rearward position.
  7. Install the load bar cover.
  8. Install the floor support covers.
  9. Tighten the floor support cover fasteners.