Restore Your Vehicle’s Central Command Center
Are you chasing down bizarre electrical gremlins in your GM vehicle? Flickering interior lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting are all classic signs of a failing Body Control Module (BCM). The BCM is the traffic cop for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. Stop the guesswork and replace the faulty component with a reliable, fully programmed solution.
This isn’t just a replacement part; it’s a direct-fit, plug-and-play fix. We take the hassle and expense out of the equation by programming this GM Body Control Module with the latest GM software updates, specifically matched to your vehicle using your VIN. This means no expensive trip to the dealership for programming. You get a module that’s ready to install right out of the box, getting you back on the road with confidence and restored functionality.
A Technician’s Notebook
I’ll never forget a 2008 Chevy Impala that came into my bay. The customer was at his wit’s end. The radio would turn on and off, the dash lights would flicker like a haunted house, and twice that week, the car refused to start, leaving him stranded. He had already replaced the battery and alternator. A quick scan showed a slew of U-codes (communication errors) pointing to a network problem. From my 20+ years of experience, I knew these symptoms pointed directly to a failing BCM. The internal logic was failing, causing it to broadcast corrupted data across the CAN bus network. We installed one of our VIN-programmed BCMs, and every single issue vanished instantly. It’s a textbook example of how a single module can wreak havoc, and how the right part makes for a simple, effective repair.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. Replacing your GM Body Control Module can resolve these issues:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Vehicle security system faults, leading to intermittent no-start conditions (often with a flashing security light).
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
A Straightforward Guide to Installation
While the exact location varies by model (see fitment list), the installation process is generally straightforward for a DIYer with basic tools. Always consult a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: It is typically found under the driver’s or passenger’s side of the dashboard, or in the center console area.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module.
- Disconnect and Remove: 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 and remove it from the vehicle.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all electrical connectors, ensuring they click securely into place.
- Post-Installation Steps: Reinstall any trim panels and reconnect the battery terminal. Start the vehicle to confirm that the primary functions are restored.
Important Post-Installation Information
This module is programmed to be as close to plug-and-play as possible. However, due to the complexity of modern vehicle systems, some models may require additional steps after installation:
- Airbag System Sync: If the airbag (SRS) light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and traction control functionality. This also requires a compatible scan tool.
- No Core Charge: You are not required to return your old module. There is no core charge or deposit associated with this purchase.
Disclaimer: Vehicle systems vary. We strongly recommend consulting a factory service manual or a certified technician if you are unsure about any part of the installation or post-installation procedures.
Verified Vehicle Compatibility
This GM Body Control Module is a direct replacement for a wide range of Chevrolet, GMC, Cadillac, Buick, Pontiac, Saturn, and Hummer vehicles. It replaces part numbers 10382479, 15892622, 22860591, and many others listed below. Key compatible models include:
- ✔ 2007-2012 GMC Acadia
- ✔ 2006-2013 Chevrolet Impala
- ✔ 2008-2012 Chevrolet/GMC Express/Savana Vans
- ✔ 2010 Chevrolet Tahoe & Suburban
- ✔ 2010 GMC Yukon / Yukon XL
- ✔ 2007-2009 Chevrolet Equinox & Pontiac Torrent
- ✔ 2006-2011 Cadillac DTS & Buick Lucerne
- ✔ 2008-2013 Cadillac CTS
- …and many more models. Please check the full fitment list to confirm compatibility with your specific vehicle and options.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the horn.
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) allows us to flash the BCM with the exact software and calibrations your vehicle had when it left the factory. This ensures all the features and options specific to your car work correctly, eliminating the need for dealer programming.
Is this part difficult to install myself?
For most DIYers with basic mechanical skills, the physical installation is not difficult. The module is typically located under the dash and involves removing a few trim pieces and swapping electrical connectors. The most important part is ensuring you have a scan tool available if a post-install relearn procedure is required for your model.
What if my airbag light comes on after I install it?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag’s Supplemental Deployment Module (SDM). A professional scan tool with the ‘Setup SDM Primary Key in BCM’ function is required to perform this sync and turn off the light.
Will this fix my car’s no-start problem?
If your no-start issue is caused by the vehicle’s anti-theft or security system being triggered by a faulty BCM, then yes, this part is designed to solve that problem. Our VIN programming ensures the security data matches your keys and vehicle.
Does this part have other compatible part numbers?
Yes, this module is a direct replacement for a long list of part numbers, including 15093910, 15276271, 15828601, 15921352, 20815898, 20935349, 22860591, 25892622, and many more.