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.
2005 Buick LeSabre V6-3.8L VIN KFACTORY OEM SERVICE PROCEDURE
Rear Integration Module Replacement
REAR INTEGRATION MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Before replacing the rear integration module (RIM), record the personalization settings to transfer to the new module (if they are available). Refer to Body Control Module (BCM) Programming/RPO Configuration (IPM) Body Control Module (BCM) Programming/RPO Configuration (DIM) Body Control Module (BCM) Programming/RPO Configuration (RIM).
2. Remove the rear seat cushion.
3. Remove the rear seat back.
4. Move the rear seat back insulator aside.
5. Remove the push pin retainers (1).
6. Disconnect the RIM electrical connectors (3).
7. Remove the RIM (2).
INSTALLATION PROCEDURE
1. Install the RIM (2).
2. Connect the RIM electrical connectors (3).
3. Install the RIM (2) with the push pin retainers (1).
4. Reposition the rear seat back insulator.
5. Install the rear seat back.
6. Install the rear seat cushion.
7. Reprogram the RIM. Refer to Body Control Module (BCM) Programming/RPO Configuration (IPM) Body Control Module (BCM) Programming/RPO Configuration (DIM) Body Control Module (BCM) Programming/RPO Configuration (RIM). Programming and Relearning
Factory Service Tools
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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.
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