Restore Your Vehicle’s Electronics with a Hassle-Free Solution
If you’re dealing with baffling electrical issues in your vehicle—like power windows with a mind of their own, flickering dash lights, or a security system that prevents your car from starting—a failing Body Control Module (BCM) is often the culprit. As the central command for your vehicle’s body electronics, a faulty BCM can cause widespread and frustrating problems. This isn’t just an inconvenience; it can affect the safety and reliability of your car. We offer a straightforward, reliable fix with our professional cloning service, tailored specifically for your vehicle.
A Technician’s Notebook: The Telltale Signs of BCM Failure
I remember a 2012 Captiva Sport that came into my bay last month. The owner was at his wit’s end. The radio would turn on and off randomly, the interior dome light wouldn’t work, and the remote keyless entry was dead. He had already replaced the battery and checked all the fuses. After connecting my scan tool, I found multiple ‘U’ codes, indicating a loss of communication between modules. This is a classic sign that the BCM, the network hub, is failing. We swapped in a module with cloned data, and within an hour, every single issue was resolved. These symptoms are textbook for a failing BCM, and our cloning service is designed to be the most direct fix.
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 anti-theft or security light is on, causing a no-start condition.
- ✔ Wipers or horn activating unexpectedly.
- ✔ False warnings on the instrument cluster (e.g., “Service Airbag,” “Service Traction System”).
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, like U0100, U0140, or other U-codes.
The Smart Alternative: Our BCM Cloning Service
Forget expensive dealership visits and the complexities of programming a new module from scratch. Our cloning service makes this repair simple. Here’s how it works: You purchase this listing and send us your original BCM. We then perform a direct data transfer, copying all the critical vehicle-specific information (like VIN, key data, and option content) to this replacement module. The result is a true plug-and-play component. We then ship both your original module and the ready-to-install replacement back to you. This process preserves all your vehicle’s original settings and eliminates the need for costly post-installation programming.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On the 2012 Captiva Sport, the BCM is typically located in the center dash area. For other models, its position can vary (e.g., under the steering column or behind the LH dash panel). Consult a service manual if you’re unsure.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM onto the mounting bracket and securely reconnect all electrical connectors. You should hear a click as they lock into place.
- ✔ Power Up: Reconnect the negative battery terminal. Your vehicle is now ready to go!
Important Post-Installation Information
While our cloning service eliminates the need for main programming, some vehicle systems may require a simple relearn procedure after the BCM is replaced and the battery is reconnected. This is standard for many repairs.
- Airbag System Sync: If the airbag light appears after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed. This requires a professional-grade scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and traction control function correctly.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 20839063 and is interchangeable with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
This part fits a wide range of GM vehicles, including but not limited to:
- 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 / ESV / 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 / YUKON XL 1500 10
Please verify the part number on your original module to ensure compatibility.
Frequently Asked Questions
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we transfer the complete software and vehicle-specific data (like VIN, mileage, and key information) from your original BCM to this replacement unit. This makes the new module an exact digital copy of the old one, allowing it to work in your vehicle without any additional programming.
So I don’t need to take my car to the dealer after installation?
That’s correct. Our cloning service eliminates the need for dealer programming, which saves you time and significant expense. It’s designed to be a true plug-and-play solution.
What if my original BCM is broken or not communicating?
In many cases, even if the BCM has failed, the data on the memory chip is still intact and readable. We use specialized equipment to extract this data. If your module has suffered extreme damage (e.g., fire or severe water corrosion), please contact us first to discuss options.
Why did my airbag light come on after installing the BCM?
This can happen because the replacement BCM needs to re-establish its security handshake with the airbag system’s computer (SDM). A simple ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool will resolve this and turn off the light.
Where is the BCM located on my 2012 Captiva Sport?
On the 2012 Chevrolet Captiva Sport, the Body Control Module is located inside the vehicle, in the center of the dashboard.
Do you keep my old module?
No. We always return your original module along with the programmed replacement unit. We do not require a core.