End the Electrical Gremlins in Your GM Vehicle
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable vehicle into a source of constant frustration. Are you dealing with phantom warning lights, power windows with a mind of their own, or door locks that refuse to cooperate? These aren’t just annoyances; they’re classic signs that your BCM, the central nervous system for your car’s electronics, is failing. This isn’t a problem you have to live with. We offer a dependable, straightforward solution to restore your vehicle’s proper function and your peace of mind.
This isn’t just a replacement part; it’s a complete solution. We provide a quality BCM that is prepared specifically for your vehicle using our professional Cloning Service. This means we transfer the critical data from your original, failing module directly onto the replacement unit. The result? A true plug-and-play component that eliminates the need for expensive and time-consuming dealership programming. You get a part that works correctly right out of the box, just like the original did.
Common Signs of a Failing BCM
- âś” Intermittent or non-functional power windows, door locks, or interior/exterior lights.
- âś” The security or anti-theft light stays on, preventing the engine from starting.
- âś” Erratic instrument cluster behavior, such as gauges sweeping or warning lights flashing randomly.
- âś” Communication failure Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-series codes.
- âś” Problems with the keyless entry or remote start systems.
- âś” Unexplained battery drain that leaves you with a dead battery overnight.
A Technician’s Notebook
I remember a 2011 Cadillac CTS that came into the shop with a truly baffling issue. The owner reported that every Tuesday, his battery would be dead. We tested the battery and alternator—both were fine. We checked for parasitic draws and found a significant one, but it was intermittent. After hours of tracing wires, we finally isolated the BCM. A faulty relay inside the module was randomly sticking ‘on’, keeping a circuit live and draining the battery. It was a perfect example of how a failing 2008-2013 CTS BCM can cause problems that seem completely unrelated. A cloned replacement fixed the issue permanently.
Your Straightforward BCM Installation Guide
- âś” Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- âś” Locate the BCM: On the 2008-2013 Cadillac CTS, the BCM is typically located on the left-hand (driver’s) side of the dash, often behind the lower trim panel. Refer to a service manual for the exact location on your specific model from the fitment list.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt the module from its mounting bracket.
- âś” Install the New Module: Mount your new, cloned BCM in the same location and securely fasten it. Reconnect all electrical connectors, ensuring they click into place.
- âś” Perform Relearns (If Needed): As noted in our post-installation procedures, you may need a professional scan tool to perform an Airbag System Sync or a Brake Pedal Position Relearn if related warning lights are present.
What is a Cloning Service?
Our cloning service is a simple yet vital process. After you place your order, you will send us your original BCM. Our technicians will use specialized equipment to extract the unique vehicle configuration data—including security information, VIN, and optional feature settings—and transfer it precisely to the replacement module. We then ship both your original module and the ready-to-install replacement back to you. This ensures seamless integration with your vehicle’s other systems without any additional programming.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for a wide range of GM vehicles and is compatible with numerous part numbers. Please verify your vehicle and part number below. Providing your VIN at checkout ensures we send you a perfectly matched and programmed part.
This module is a direct replacement for the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Fits Models Including:
- Acadia (2007-2012)
- Avalanche 1500 (2010)
- Caprice (2011-2013)
- Captiva Sport (2012)
- CTS (2008-2013)
- DTS (2006-2011)
- Enclave (2008-2012)
- Equinox (2007-2009)
- Escalade / ESV / EXT (2010)
- Express Van (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- Savana Van (2008-2012)
- SRX (2007-2009)
- STS (2010)
- Suburban 1500 (2010)
- Tahoe (2010)
- Torrent (2007-2009)
- Traverse (2009-2012)
- Vue (2008-2010)
- Yukon / XL 1500 (2010)
Note: Location of the BCM varies by model. Always confirm the location before beginning work.
Frequently Asked Questions
Frequently Asked Questions
What is the process after I purchase?
After you complete your purchase, we will provide instructions for shipping your original BCM to us. Once we receive it, we perform the cloning service within 1-2 business days and ship both your original unit and the ready-to-install replacement back to you.
Do I get my old BCM back?
Yes, absolutely. Your original module is always returned to you along with the programmed replacement unit. We do not keep the core.
Will this fix my specific problem?
This BCM will fix issues directly caused by a faulty module. While the symptoms we’ve listed are common, a proper diagnosis is key. We recommend confirming the BCM is the source of the fault before ordering.
What tools are needed for the post-installation procedures?
Procedures like the Airbag System Sync or Brake Pedal Position Relearn require a bi-directional professional diagnostic tool (scan tool) capable of performing these specific functions on GM vehicles. Basic code readers cannot perform these tasks.
Is this a brand new part?
This is a high-quality, tested replacement part that has been verified to meet or exceed original equipment performance. It is prepared with the latest software updates available for your vehicle during the cloning process.