GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front bucket seat. Refer to Bucket Seat Replacement .
  2. Remove the outer trim panel. Refer to Front Seat Cushion Outer Trim Panel Replacement .

  3. Object Number: 627458  Size: SH

    Important: The lumbar support must be in the relaxed position to disconnect the lumbar support cable.

  4. Remove the lumbar control cable from the lumbar control.

  5. Object Number: 627459  Size: SH
  6. Remove the screws from the lumbar control.
  7. Remove the lumbar control from the seat cushion frame.

Installation Procedure


    Object Number: 627459  Size: SH
  1. Install the lumbar control to the seat cushion frame.
  2. 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 screws to the lumbar control.
  4. Tighten
    Tighten the screws to 10 N·m (89 lb in).


    Object Number: 627458  Size: SH
  5. Install the lumbar control cable to the lumbar control.
  6. Install the outer trim panel. Refer to Front Seat Cushion Outer Trim Panel Replacement .
  7. Install the front bucket seat. Refer to Bucket Seat Replacement .