GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Body and Accessories 🢒 Seats 🢒 Rear Seat Back Cushion Replacement

Removal Procedure
  1. Remove the seat cushion. Refer to Rear Seat Cushion Replacement .

    2. Object Number: 310463 Size: SH
  2. Remove the anchor nuts that secure the rear seat retainer at the bottom of the seat back.

    3. Object Number: 310476 Size: SH
  3. Grasp the bottom of the seat back. Swing upward on the seat back in order to disengage the offsets on the upper frame bar from the hangers.
  4. Lift the seatback upwards in order to remove the seat back.
  5. Remove the seat back from the vehicle.

Installation Procedure

    Object Number: 310476 Size: SH
  1. Install the seat back into the vehicle.
  2. Hook the seat back upper frame to the hangers

    3. Object Number: 310463 Size: SH

    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 rear seat back anchor nuts.

    4. Tighten
    Tighten the rear seat back anchor nuts to 10 N·m (89 lb in).

  4. Install the seat cushion. Refer to Rear Seat Cushion Replacement .