2008-2009 G8 Body Control Module 15921353 Cloning Service

Is Your Pontiac G8 Acting Possessed? The BCM is Likely the Culprit.

As an automotive diagnostician for over two decades, I’ve seen my share of baffling electrical issues. On modern cars like the 2008-2009 Pontiac G8, the source of these gremlins is often a single, central component: the Body Control Module (BCM). This isn’t just a fuse box; it’s the brain that manages everything from your power windows and door locks to the interior lights and security system. When it starts to fail, your car can develop a mind of its own, creating frustrating and unpredictable problems that can be a nightmare to diagnose.

This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional Cloning Service for this 2008-2009 G8 Body Control Module. This means you send us your original, faulty BCM, and we expertly transfer all of its critical, vehicle-specific data—including VIN, mileage, and security information—to this fully functional replacement unit. The result? A module that is 100% plug-and-play. You avoid expensive dealership programming fees and the complex setup procedures that would otherwise be required. It’s the most efficient way to restore your G8’s functionality and get back to enjoying your drive.

Common Signs of a Failing BCM

• ✔ Erratic or non-functional power windows, door locks, or mirrors.
• ✔ Interior or exterior lights flickering, staying on, or not working at all.
• ✔ The security system acting up, causing no-start conditions (flashing security light).
• ✔ Horn honking randomly or not working when pressed.
• ✔ Inconsistent operation of the windshield wipers.
• ✔ Multiple communication error codes stored, such as U0140, U0155, or other U-codes.
• ✔ Dashboard warning lights illuminating for no apparent reason.

A Straightforward Guide to Installation

1. ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
2. ✔ Locate the BCM: On the 2008-2009 Pontiac G8, the Body Control Module is typically located in the center dash area, often accessible from the passenger side footwell. You may need to remove a kick panel or glove box for access.
3. ✔ Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket and remove it from the vehicle.
4. ✔ Install the New Module: Mount your newly cloned BCM in the same location and securely reconnect all the electrical connectors. Ensure they click into place.
5. ✔ Reconnect Power: Reattach the negative battery terminal and tighten it securely.
6. ✔ Test Functionality: Start the vehicle and test all the body functions: windows, locks, lights, wipers, and radio to confirm the repair is successful.
7. ✔ Post-Installation Checks: In some cases, additional steps may be needed. If the airbag light is on, an ‘Airbag System Sync’ may be required. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. These procedures typically require a professional scan tool.

Verified Vehicle Compatibility

This BCM is a direct-fit replacement for a wide range of General Motors vehicles. While this listing is focused on the 2008-2009 G8 Body Control Module, it is also compatible with the models listed below. Always match your original part number to the list to guarantee compatibility. Our cloning service ensures it will work with your specific vehicle’s options.

Part Number 15921353 supersedes the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.

Frequently Asked Questions