GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Riviera 🢒 Body and Accessories 🢒 Seats 🢒 Rear Quarter Trim Panel Replacement

Removal Procedure
  1. Remove the seat cushion. Refer to Rear Seat Cushion Replacement in Seats.
  2. Remove the seatback. Refer to Rear Seat Back Replacement in Seats.
  3. Remove the carpet retainer insert.
  4. Remove the carpet retainer fasteners.
  5. Remove the carpet retainer.

    6. Object Number: 289254 Size: SH
  6. Release the retainers on the backside of the quarter trim (2).
  7. Remove the quarter trim assembly (2).

Installation Procedure

    Object Number: 289254 Size: SH
  1. Align the quarter trim retainers with the holes in the body side.
  2. Push in on the quarter trim assembly (2) in order to snap the retainers in position.
  3. Install the carpet retainer.
  4. Install the carpet retainer fasteners.

    5. Tighten
    Tighten the fasteners to 2 N·m (18 lb in). Refer to

    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.

    in Cautions and Notices.

  5. Install the carpet retainer insert.
  6. Install the seat cushion. Refer to Rear Seat Cushion Replacement in Seats.
  7. Install the seatback. Refer to Rear Seat Back Replacement in Seats.