Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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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 - SIRREMOVAL 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.

CAUTION: Refer to SIR Inflator Module Handling and Storage Caution in Cautions and Notices.

Disable the SIR system. Refer to SIR Disabling and Enabling Zone 5 in SIR.
Remove the console. Refer to Console Replacement .
Remove the I/P accessory trim plate. Refer to Trim Plate Replacement - Instrument Panel (I/P) Accessory .
Remove the I/P compartment. Refer to Compartment Replacement - Instrument Panel (I/P) .
Remove the driver knee bolster trim panel. Refer to Trim Panel Replacement - Knee Bolster .
Remove the I/P upper trim pad. Refer to Trim Pad Replacement - Instrument Panel (I/P) Upper .
Remove the outlet duct from the right side window defogger.

Fig 1: Electrical Connector Retainer To SIR Bracket

Courtesy of GENERAL MOTORS CORP.

Release the I/P harness retainer from the passenger SIR bracket along the hinge pillar.
Remove the connector position assurance (CPA) from the SIR module electrical connector.
Release the electrical connector retainer from the SIR bracket.

Fig 2: SIR Module Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Disconnect the SIR module electrical connector.

Fig 3: Passenger Knee Bolster Bracket To IP Center Support Bracket Retaining Bolts

Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

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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.