GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 409526  Size: SH
  1. Remove the power seat switch bezel containing the lumbar switch (1) from the seat. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .
  2. Disconnect the electrical connector from the switch.
  3. Remove the lumbar switch screws from the power seat switch bezel.
  4. Remove the lumbar switch.

Installation Procedure

  1. Install the lumbar switch to the power seat switch bezel.
  2. Connect the electrical connector to the switch.
  3. 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 lumbar switch screws.
  5. Tighten
    Tighten the lumbar switch screws to 2 N·m (18 lb in).


    Object Number: 409526  Size: SH
  6. Install the power seat switch bezel (1) to the seat. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .