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 556 (REAR PARKING ASSIST SYSTEM)REPAIR INSTRUCTIONSOBJECT ALARM MODULE 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 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Roll the second row seats forward.

Fig 1: Aligning Second Row Seats Forward
Courtesy of GENERAL MOTORS CORP.
Fold the third row seat down.
Open the guide loop covers from the left rear seat belt.

Fig 2: Identifying Guide Loop Covers From LH Rear Seat Belt
Courtesy of GENERAL MOTORS CORP.
Remove the guide loop bolts from the second and from the third row seat belts.

Fig 3: Locating Guide Loop Bolt
Courtesy of GENERAL MOTORS CORP.
Remove the upper trim from the second and third row pillars.

Fig 4: View Of Upper Trim From Second & Third Row Pillars
Courtesy of GENERAL MOTORS CORP.
Remove the storage compartment. Refer to Storage Compartment Replacement - Rear (Rendezvous) in Interior Trim.
Remove the rear liftgate sill.

Fig 5: Identifying Rear Liftgate Sill
Courtesy of GENERAL MOTORS CORP.
Remove the cargo tie-down loops from the rear quarter trim.
Pull the top of the quarter trim loose to gain access to the bolts that secure the rear object alarm detection module.

Fig 6: View Of Rear Object Alarm Detection Module
Courtesy of GENERAL MOTORS CORP.
Remove the bolts.
Remove the electrical connector to the module.
Remove the rear object alarm detection module.

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.