SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 743 (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 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Seat Mounting Component View
    GM71215Courtesy of GENERAL MOTORS CORP.
  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.
    3. Fig 2: Seat Back Recliner Handle
    GM71223Courtesy 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.
    4. Fig 3: Side Trim Panel & Switch Harness
    GM71221Courtesy of GENERAL MOTORS CORP.
  4. Remove the side trim panel (Power Seat). Refer to Trim Panel Replacement - Front Seat .
    5. Fig 4: Rear Flap To Seat Cushion Cover
    GM172298Courtesy of GENERAL MOTORS CORP.
  5. Remove the hog rings from the rear flap of the seat cushion cover.
    6. Fig 5: Rear Corners At Seat Cushion Cover
    GM172293Courtesy of GENERAL MOTORS CORP.
  6. Raise the flap.
  7. Unfasten the draw string.
  8. Remove the hogrings 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).
    11. Fig 6: Lumbar Pump & Module To Seat Frame & Seat Back
    GM339492Courtesy 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.
    17. Fig 7: Actuators Underneath Seat Frame Springs
    GM71219Courtesy of GENERAL MOTORS CORP.
  17. Remove the hinge bolts.
  18. Remove the seat back.
  19. Reposition the actuators underneath the seat frame springs.
    20. Fig 8: View Of Seat Cushion Frame
    GM71217Courtesy of GENERAL MOTORS CORP.
  20. Remove the seat cushion frame from the seat adjuster.
  21. Remove the recliner mechanism from the seat cushion frame.
    22. Fig 9: Wire Assembly To Seat Cushion Frame
    GM281999Courtesy 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.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

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.