Restore Full Functionality to Your GM Vehicle
Are you battling bizarre electrical issues in your 2012 Chevrolet Captiva or another GM vehicle? Flickering lights, malfunctioning power windows, a security system that has a mind of its own, or even a frustrating no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, when the BCM falters, it can create a cascade of confusing and unpredictable problems. This isn’t just an inconvenience; it can be a serious safety concern.
This replacement Body Control Module is the definitive solution. We take the guesswork and dealership hassle out of the repair. Simply provide your vehicle’s VIN after your purchase, and our expert technicians will program the module with the latest, most stable software directly from GM. It arrives at your door ready for installation, saving you from expensive towing fees and dealership programming charges. This is the most direct and reliable way to get your car back to functioning as it should.
From the Diagnostic Bay: The Case of the Ghostly Glitches
I remember a 2011 GMC Acadia that came into my shop with a laundry list of complaints from the owner. The radio would turn on and off, the dome lights would flicker while driving, and sometimes the power liftgate wouldn’t open. The owner had already replaced the battery and checked all the fuses. A scan showed a handful of communication errors (U-codes) pointing to a network problem. After tracing the wiring and finding no faults, experience pointed me to the BCM. These modules are notorious for causing these exact types of ‘ghost’ problems due to internal circuit board failures. We installed a VIN-programmed BCM, and every single issue vanished. It’s a perfect example of how one component can wreak so much havoc.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a faulty Body Control Module is a likely culprit. Don’t let these issues leave you stranded.
- ✔ Intermittent or non-functional power windows, door locks, or interior/exterior lights.
- ✔ The security system or alarm activates randomly or prevents the car from starting.
- ✔ Warning lights for ABS, Traction Control, or Airbags appear on the dash without a clear cause.
- ✔ Your key fob stops working or works sporadically.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0100, U0140, or other U-series codes.
- ✔ Complete loss of power to various accessories.
A Straightforward Guide to BCM Installation
Replacing the BCM is a manageable job for a DIY enthusiast. While the location varies by model (check your service manual or the fitment list), the general process is similar.
- 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 many vehicles like the Captiva Sport, it’s behind the center dash. On others like the Impala, it’s on the driver’s side (LH dash). Consult your vehicle’s specific layout.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. Use a trim removal tool to avoid scratching or breaking clips.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that must be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reassemble the trim panels and reconnect the negative battery terminal. Start the vehicle and test all functions—lights, windows, locks, etc.—to confirm the repair.
Important Post-Installation Steps
In some cases, additional vehicle-specific relearn procedures may be needed after installation. This is normal and ensures all related systems communicate correctly with the new BCM. Common procedures include:
- Airbag System Sync: If the airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure.
- Brake Pedal Position Relearn: This may be necessary to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual for your specific vehicle for detailed instructions and safety precautions.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for a wide range of General Motors vehicles, including popular models like the Chevrolet Equinox, Impala, Tahoe, Traverse, and Express vans; GMC Acadia, Yukon, and Savana vans; Cadillac CTS, DTS, and Escalade; and many more. It replaces a long list of original part numbers to ensure broad compatibility. Please cross-reference your original part number from the list below to confirm fitment.
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
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. We flash the module with the latest GM software using the VIN you provide, making it ready to install right out of the box.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship the part until we receive this information.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old BCM, so you won’t have to worry about the cost or hassle of shipping it back.
What tools are needed for the installation?
Basic hand tools are typically all that’s required, such as a socket set and a screwdriver. A plastic trim removal tool is also highly recommended to avoid damaging your vehicle’s interior panels.
What if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key’ procedure, which must be performed by a professional mechanic with a capable diagnostic tool.