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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 654 (SEAT SYSTEM)REPAIR INSTRUCTIONSSEAT CUSHION FRAME REPLACEMENTREMOVAL PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Removal Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the seat. Refer to SEAT REPLACEMENT (POWER)  or SEAT REPLACEMENT (MANUAL) .
  2. Remove the buckle side of the seat belt from the seat frame.
    Fig 1: Removing Buckle Side Of Seat Belt From Seat Frame
    G01451645Courtesy of GENERAL MOTORS CORP.
  3. Remove the recliner handle.
    1. With a suitable blunt ended tool inserted between the seat cushion and the handle push the handle retaining spring clip down.
    2. Pull the handle from the shaft.
      Fig 2: Recliner Handle
      G01451646Courtesy of GENERAL MOTORS CORP.
  4. Remove the side trim panel (Power Seat). Refer to TRIM PANEL REPLACEMENT - FRONT SEAT .
    Fig 3: Side Trim Panel (Power Seat)
    G01451647Courtesy of GENERAL MOTORS CORP.
  5. Remove the hog rings from the rear flap of the seat cushion cover.
    Fig 4: Removing Hog Rings From Rear Flap Of Seat Cushion Cover
    G01451648Courtesy of GENERAL MOTORS CORP.
  6. Raise the flap.
  7. Unfasten the draw string.
  8. Remove the hog rings attaching the rear corners of the seat cushion cover.
  9. Remove the cover and foam pad.
  10. Remove the seat module from the seat wires (Base Power Seat).
    Fig 5: Removing Hog Rings Attaching Rear Corners Of Seat Cushion Cover
    G01451649Courtesy of GENERAL MOTORS CORP.
  11. Remove the lumbar pump and module and pull them up through the seat frame and lay them aside still attached to the seat back (Sport Seat).
  12. Remove the memory module from the seat wires (Optional Sport Seat).
  13. Mark the seat back actuators to identify the right side from the left side.
  14. Note the routing of the recliner mechanism cables.
  15. Position the seat back full up to remove the tension from the actuator springs.
  16. Remove the forward pins from the seat back actuators.
    Fig 6: Removing Memory Module From Seat Wires (Optional Sport Seat)
    G01451650Courtesy of GENERAL MOTORS CORP.
  17. Remove the hinge bolts.
  18. Remove the seat back.
  19. Reposition the actuators underneath the seat frame springs.
    Fig 7: Hinge Bolts
    G01451651Courtesy of GENERAL MOTORS CORP.
  20. Remove the seat cushion frame from the seat adjuster.
  21. Remove the recliner mechanism from the seat cushion frame.
    Fig 8: Removing Seat Cushion Frame From Seat Adjuster
    G01451652Courtesy of GENERAL MOTORS CORP.
  22. Remove the wire assembly from the seat cushion frame (if replacing or transferring the wire assembly).
    1. Insert a screwdriver between the tension spring coils and pull toward the wires unhook the tension spring from the wire assembly.
    2. Unhook the wire assembly from the front of the seat cushion frame.
      Fig 9: Removing Wire Assembly From Seat Cushion Frame
      G01451653Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.