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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 734 (INSTRUMENT PANEL SYSTEM DISPLAYS, GAUGES AND CONSOLE)REPAIR INSTRUCTIONSBRACKET REPLACEMENT - INSTRUMENT PANEL (I/P) CENTER SUPPORTREMOVAL 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.
  1. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 4 in SIR.
    2. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  2. Disconnect the negative battery cable.
  3. Remove the console. Refer to Console Replacement .
  4. Remove the I/P accessory trim plate. Refer to Trim Plate Replacement - Instrument Panel (I/P) Accessory .
  5. Remove the driver knee bolster trim panel. Refer to Trim Panel Replacement - Knee Bolster .
  6. Remove the I/P passenger compartment. Refer to Compartment Replacement - Instrument Panel (I/P) .
  7. Remove the I/P upper trim pad. Refer to Trim Pad Replacement - Instrument Panel (I/P) Upper .
  8. Remove the park/lock control cable (A/T). Refer to Park Lock Cable Replacement in Automatic Transmission - 4L60-E.
    9. Fig 1: CPA To SDM Electrical Connector
    GM68619Courtesy of GENERAL MOTORS CORP.
  9. Remove the connector position assurance (CPA) from the electrical connector on the inflatable restraint sensing and diagnostic module (SDM).
    10. Fig 2: SDM Electrical Connector
    GM68620Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the SDM electrical connector.
  11. Remove the ignition switch bolts, then reposition the ignition switch. Refer to Ignition Switch Replacement .
    12. IMPORTANT: The following step must be performed to assure proper trim fit during installation.
  12. Mark the location of the I/P center support bracket. Refer to Instrument Panel (I/P) Disassembly Precautions .
  13. Remove the right bolt that secures the center support bracket to the driveline tunnel.
    Fig 3: Right Bolts To Center Support Bracket At Driveline Tunnel
    GM95700Courtesy of GENERAL MOTORS CORP.
    14. Fig 4: Right Bolt To Center Support Bracket At I/P Lower Support Beam
    GM95680Courtesy of GENERAL MOTORS CORP.
  14. Remove the bolts that secure the center support bracket to the passenger knee bolster bracket.
  15. Remove the right bolt that secures the center support bracket to the I/P lower support beam.
    16. Fig 5: Right & Left Bolt To Center Support Bracket At Driveline Tunnel
    GM95698Courtesy of GENERAL MOTORS CORP.
  16. Remove the right bolt that secures the center support bracket to the driveline tunnel.
    17. Fig 6: Center Support Bracket To I/P Lower Support Beam
    GM95677Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.