Restore Control and End Electrical Frustrations in Your GM Vehicle
Are you dealing with a vehicle that seems to have a mind of its own? Flickering lights, power windows that won’t cooperate, a security system that randomly immobilizes your car, or dashboard warning lights that won’t go away are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of confusing and frustrating problems. This isn’t just an inconvenience; it can be a serious safety issue. We offer a direct, reliable solution: a replacement Programmed GM BCM, flashed with the latest GM software specifically for your vehicle’s VIN.
A Technician’s Notebook: The Case of the Haunted Express Van
I remember a 2011 Chevy Express 2500 that came into my shop. The owner, a contractor, was at his wit’s end. The dome lights would stay on, the radio would shut off randomly, and occasionally, the van wouldn’t start, flashing a ‘Service Theft System’ message. He’d already replaced the battery and checked the grounds. After hooking up my diagnostic tool, I saw a dozen communication loss codes (U-codes) pointing to the BCM. These modules, often located under the dash, can be susceptible to moisture or voltage spikes over time. We replaced it with a VIN-programmed unit just like this one. The new module restored communication instantly, all the gremlins vanished, and the van was back on the road the same day. This is why a correctly Programmed GM BCM is a non-negotiable part of a proper diagnosis and repair.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft system light is illuminated, preventing the engine from starting.
- ✔ The horn sounds randomly or doesn’t work when pressed.
- ✔ Windshield wipers behaving unpredictably.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
- ✔ False warnings on the driver information center (DIC).
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a DIY enthusiast or any professional technician. By ordering a pre-flashed module, you skip the most complex step: the dealership programming. Follow these general steps to get your vehicle back in order.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most compatible GM vehicles, the BCM is located under the driver’s or passenger’s side of the dashboard, or behind a kick panel. Consult a vehicle-specific guide if you’re unsure.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Relearn Procedures (If Needed): Start the vehicle. In some cases, you may need a professional scan tool to perform a ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ if related warning lights appear. This is a final step to ensure all systems are communicating correctly.
Verified Fitment for a Wide Range of GM Vehicles
This BCM is a direct replacement for a vast array of General Motors vehicles. We program it using your VIN to ensure it functions as the original. Please verify your vehicle is on this list. This module replaces 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.
- 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 1500/2500/3500 Vans (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- Savana 1500/2500/3500 Vans (2008-2012)
- SRX (2007-2009)
- STS (2010)
- Suburban 1500 (2010)
- Tahoe (2010)
- Torrent (2007-2009)
- Traverse (2009-2012)
- Vue (2008-2010)
- Yukon & Yukon XL 1500 (2010)
Frequently Asked Questions
Frequently Asked Questions
What happens if I install this without providing my VIN?
The module will not function correctly. The VIN-specific programming is essential for the BCM to communicate with your vehicle’s other electronic systems, including the engine computer, transmission module, and anti-theft system. We cannot ship the part until we have your VIN.
Is this really a plug-and-play solution?
For the most part, yes. Because we pre-program it, you avoid the mandatory dealer-level programming. However, as noted in our installation information, some vehicles may require a simple ‘relearn’ procedure for the brake pedal position sensor or airbag system, which can be done with a bi-directional scan tool if a warning light appears after installation.
Do I need to send my old BCM back?
No, there is absolutely no core charge for this part. You can keep your original module, which is helpful if you ever want to reference its part number or have it as a backup.
Will this fix my ‘Service Theft Deterrent System’ message?
A faulty BCM is a very common cause of this message and the related no-start condition. Our Programmed GM BCM is flashed with your vehicle’s security information, which typically resolves this issue. However, you should always confirm the diagnosis, as other components like the ignition switch or key could also be at fault.
How do I provide my VIN after purchase?
After you complete your order, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We will confirm receipt and begin the programming process. Your VIN can be found on your vehicle’s dashboard (visible through the windshield) or on your registration and insurance documents.