GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

  1. Disable the SIR System. Refer to Disabling the SIR System in SIR.

  2. Object Number: 670423  Size: SH
  3. Move the seat to the full forward position.
  4. Remove the fasteners (1) securing the seat cushion to the seat adjuster assembly.
  5. Lift the front of the seat cushion upwards.
  6. Remove the power seat switch trim bezel. Refer to Power Seat Switch Replacement .
  7. Pull the cushion forward in order to disengage the seat cushion from the seat adjuster assembly.

  8. Object Number: 430386  Size: SH
  9. Release the seat cushion cover J channels from the seat cushion frame.
  10. Remove the seat cushion cover  (1).
  11. Remove the seat cushion pad  (2).

Installation Procedure


    Object Number: 430386  Size: SH
  1. Install the seat cushion pad  (2) to the seat cushion frame  (3).
  2. Install the seat cushion cover  (1) over the seat cushion pad  (2).
  3. Work the cushion pad (2) into position so there are no wrinkles or lumps in the seat cushion cover.
  4. Ensure the hook and loop fasteners on the seat cushion cover and the seat cushion pad are fully engaged in order to ensure proper fit of the seat cushion cover.
  5. Install the seat cushion cover J channels to the seat cushion frame.
  6. Install the power seat switch trim bezel. Refer to Power Seat Switch Replacement .
  7. Insert the seat cushion locators, at the rear of the seat cushion frame, into the rectangular openings in the seat adjuster assembly.
  8. Lower the front of the seat cushion down into position onto the seat adjuster assembly.
  9. 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.

  10. Install the seat cushion fasteners.
  11. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  12. Enable the SIR system. Refer to Enabling the SIR System in SIR.