GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 LSS 🢒 Body and Accessories 🢒 Seats 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the seat with the aid from an assistant. Refer to one of the following procedures:

    2. Seat Replacement

    Seat Replacement

  2. Place the seat upside down on a clean, protected surface.

    3. Object Number: 500962 Size: SH
  3. Remove the adjuster bolts (2) and the adjuster assembly (4).

    4. Object Number: 500980 Size: SH
  4. Remove the lumbar knob (1). Refer to Lumbar Support Knob Replacement .
  5. Remove the lumbar adjuster.

Installation Procedure
  1. Install the lumbar adjuster.

    2. Object Number: 500980 Size: SH
  2. Install the lumbar knob (1). Refer to Lumbar Support Knob Replacement .

    3. Object Number: 500962 Size: SH
  3. Install the seat adjuster assembly (4) and bolts (2).

    4. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  4. Install the adjuster assembly bolts.

    5. Tighten
    Tighten the adjuster assembly bolts to 24 N·m (17 lb ft).

  5. With the aid from an assistant, install the seat. Refer to Seat Replacement .