Tired of Chasing Electrical Gremlins? Restore Your Vehicle’s Brain.
As a technician with over two decades of experience, I’ve seen it all. A customer comes in with a car that seems possessed—the radio turns on and off by itself, the power windows have a mind of their own, and the dash lights flicker like a disco. These aren’t random quirks; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to go, it can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can affect security systems and driver alerts, making it a critical safety component.
This is your direct-fit, permanent solution. We offer a reliable GM Body Control Module that arrives at your door pre-programmed for your specific vehicle. You provide your VIN, and we handle the complex part, loading it with the latest GM software updates. This means you can skip the expensive trip to the dealership and the hours of programming fees. You get a part that’s ready to install right out of the box, restoring full functionality and peace of mind.
A Technician’s Notebook: The 2011 Impala Mystery
I remember a 2011 Chevy Impala that had three different shops stumped. The owner complained of intermittent no-starts, a security light that wouldn’t turn off, and power locks that worked only when they felt like it. The battery was new, the alternator checked out, and the wiring looked fine. After connecting my diagnostic scanner, I saw a slew of U-codes (communication errors) pointing to a network breakdown. The culprit? A failing BCM was corrupting the data bus. Instead of a multi-day diagnostic nightmare and a hefty dealer bill for the customer, we ordered a VIN-programmed BCM. The installation took less than an hour, and every single issue was resolved instantly. It’s a powerful fix for what seems like a complex problem.
Common Signs of a Failing BCM
If your vehicle is experiencing any of these symptoms, a faulty GM Body Control Module is the likely cause. Don’t let these issues linger—a failing BCM can lead to more significant problems down the road.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Dashboard lights flickering, staying on, or not working at all.
- ✔ Vehicle security system malfunctioning or preventing the car from starting (anti-theft light on).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Interior or exterior lights behaving strangely (e.g., staying on and draining the battery).
- ✔ Communication error codes stored in the system, such as U0140, U0155, or other U-series codes.
- ✔ Problems with the radio, climate control, or other interior accessories.
A Straightforward Guide to Your BCM Installation
Replacing your BCM is a manageable job for a DIYer with basic tools. Our pre-programmed module makes it a simple plug-and-play process. Always refer to a service manual for your specific vehicle’s BCM location.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: The BCM is typically found under the driver’s or passenger’s side of the dashboard, or behind the center console. Its location is noted in the fitment list below.
- Remove Trim Panels: You may need to remove a few plastic trim panels or a kick plate to gain access to the module. These are usually held in by clips or a few screws.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and reconnect all the electrical connectors. Ensure they click securely into place.
- Final Steps: Reinstall any trim panels you removed and reconnect the negative battery terminal. Start the vehicle to confirm that the electrical systems are functioning correctly.
Important Post-Installation Information
While our BCM is designed for a seamless installation, some GM vehicles require a final handshake between modules. Don’t be alarmed if you see one of the following—it’s a normal part of the process for certain models:
- ✔ Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional scan tool to sync the modules and is a quick procedure for any qualified mechanic.
- ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary to ensure perfect operation of the brake lights and traction control system.
- ✔ No Core Charge: We make it easy. There is no core charge on this part, so you can keep your old module without the hassle of shipping it back.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a professional technician if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. It is compatible with 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.
This part fits the following makes and models:
- 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 Van (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 Van (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
What exactly does a Body Control Module do?
The BCM is a computer that manages many of your vehicle’s non-engine related functions. Think of it as the brain for body electronics like power windows, locks, lights, wipers, security system, and interior accessories. When it fails, these systems can become unreliable.
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the specific software and settings for your vehicle’s exact make, model, year, and options. This ensures it works seamlessly once installed, saving you from needing a dealer to program it.
Is this difficult to install myself?
For most DIYers with basic hand tools, this is a very manageable repair. The biggest challenge is usually accessing the module under the dash. Since our module comes pre-programmed, the physical swap is all that’s required, making it a plug-and-play process.
What if my part number isn’t 15299986 but is on your list?
That’s perfectly fine! GM often updates part numbers over time. The extensive list of compatible part numbers shown in our description represents older versions that this new module directly replaces. As long as your part number is on our list, this module is the correct, updated part for your car.
What happens if the airbag light comes on after I install it?
This is a possibility on some GM models. The new BCM needs to be electronically introduced to the airbag’s computer (SDM). This is a simple ‘relearn’ or ‘sync’ procedure called ‘Setup SDM Primary Key in BCM’ that any professional shop with a capable scan tool can perform in a few minutes.
Do I have to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module, which saves you the time and expense of shipping a core back.