Restore Full Functionality to Your GM Vehicle
Is your 2011-2013 Chevrolet Caprice or other GM vehicle plagued by strange electrical issues? Power windows with a mind of their own, intermittent door lock failures, a security light that won’t turn off, or dashboard warning lights appearing for no reason are all 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 fail, it can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can impact vehicle safety and security.
We offer a straightforward and reliable solution. This Body Control Module, corresponding to part number 20864767 and many others, arrives at your door pre-programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. This critical step eliminates the need for an expensive trip to the dealership for programming, saving you both time and money. Simply provide us with your VIN during checkout, and our experts will handle the complex software flashing, ensuring a seamless integration with your vehicle’s existing systems.
A Technician’s Notebook: The Case of the Caprice PPV
I remember a 2012 Caprice PPV (Police Pursuit Vehicle) that came into the shop with a list of bizarre, intermittent complaints from the department. The dome light would stay on, the driver’s side power window would only work occasionally, and the radio would randomly shut off. Standard diagnostic checks on individual components showed nothing. After connecting a scope, we saw erratic data signals on the low-speed CAN bus. The culprit? A failing BCM was corrupting communication between modules. Replacing it with a generic, un-programmed unit would have required expensive dealer tools to set up all the police-specific options. A pre-programmed 2011-2013 Caprice BCM like this one solved every issue in one go, getting a critical service vehicle back on the road fast.
Common Signs of a Failing Body Control Module
If you’re experiencing any of the following, a faulty BCM is the likely cause. In my 20+ years of experience, these are the most frequent symptoms I’ve seen in the service bay:
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft system light stays illuminated, preventing the car from starting.
- ✔ Horn sounds unexpectedly or doesn’t work at all.
- ✔ Dashboard warning lights (like ABS or Airbag) turn on and off without a clear cause.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0100, are stored in the system.
- ✔ Wipers operate incorrectly or won’t turn off.
A Straightforward Guide to Your BCM Installation
Replacing the BCM is a manageable job for a confident DIYer. While the exact location varies by model (see fitment list), the general process is similar. For the 2011-2013 Caprice, you’ll typically find it in the cabin.
- 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: On most listed models, 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 for the exact position.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all the electrical connectors securely, ensuring they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some vehicles may require additional relearn procedures as detailed below.
Important Post-Installation Note: Depending on your specific vehicle, you may need a professional scan tool to perform a ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ (also known as ‘Setup SDM Primary Key in BCM’) if related warning lights appear after installation. This ensures all safety systems are communicating correctly with the new module.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your original part number is on this list or that your vehicle is listed below. Our VIN programming ensures it works correctly for your specific application.
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 07-12, AVALANCHE 1500 10, CAPRICE 11-13, CAPTIVA SPORT 12, CTS 08-13, DTS 06-11, ENCLAVE 08-12, EQUINOX 07-09, ESCALADE 10, ESCALADE ESV 10, ESCALADE EXT 10, EXPRESS VANS 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS 08-12, SRX 07-09, STS 10, SUBURBAN 1500 10, TAHOE 10, TORRENT 07-09, TRAVERSE 09-12, VUE 08-10, YUKON 10, YUKON XL 1500 10. (Please check the detailed list in the original description for specific options and IDs).
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that manages and controls many of your car’s non-engine related electronic features. This includes power windows, locks, interior and exterior lighting, security system, wipers, and sometimes even the climate control and radio.
Why do you need my VIN for programming?
Your Vehicle Identification Number (VIN) allows us to load the exact software and vehicle-specific settings for your car’s options (like sunroof, power seat type, etc.). This ensures the new BCM works perfectly out of the box, just like the original one did from the factory.
Is this a difficult part to install myself?
For most DIYers with basic tools, this is a very manageable repair. The main challenge is typically accessing the module, which is often located under the dashboard. Our pre-programming service handles the most difficult part, which is the software setup.
What if my airbag or brake light is on after installation?
This can happen on some models. It means the new BCM needs to be electronically introduced to the airbag or brake system. A procedure like ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ can be performed by a shop with a professional-grade scan tool to resolve this.
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 saves you the time and hassle of return shipping.