Restore Full Functionality to Your GM Vehicle with Our BCM Cloning Service
If your 2008-2012 Express 2500 Van is plagued by baffling electrical issues, a failing Body Control Module (BCM) is the likely culprit. As the central command center for your vehicle’s body electronics, a faulty BCM can wreak havoc, causing everything from flickering lights and malfunctioning power windows to a frustrating no-start condition. Instead of facing a costly trip to the dealership for a new module and programming fees, our professional cloning service offers a streamlined, reliable, and affordable solution.
We transfer the exact data from your original BCM to this replacement unit. This means all your vehicle’s specific settings, key information, and factory options are perfectly preserved. The result is a true plug-and-play module, eliminating the need for expensive dealer-specific tools or additional programming after installation. It’s the most effective way to get your work van or family vehicle back on the road with confidence.
A Technician’s Notebook: The Intermittent Gremlin
I once had a 2011 Savana 2500 in the bay—a contractor’s workhorse—with a maddening intermittent no-start. The battery was good, starter checked out, but sometimes it would just refuse to crank. After hours of tracing wires, I noticed the security light was flashing erratically during the no-start events. A scan revealed communication loss codes with the BCM (U0140). The internal relays in these BCMs can fail from heat and vibration, causing unpredictable power disruptions to critical systems like the theft-deterrent module. A cloned BCM solved the problem instantly, as it retained the original key data, preventing any security system conflicts that a brand new, unprogrammed module would have caused.
Is Your Vehicle Showing These Common BCM Failure Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this service is your solution:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft light is illuminated, preventing the engine from starting.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U0140, U0155, or B1001.
- ✔ Erratic behavior from the instrument cluster gauges or warning lights.
Your Straightforward BCM Swap Guide
Installing your cloned BCM is a direct swap. Here’s a general guide to get you started:
- 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 most Express and Savana vans, the BCM is located in the center dash area, often accessible by removing lower dash panels. On other compatible models, it may be under the steering column or behind the driver-side dash. A quick search for your specific model will confirm its location.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the Cloned Module: Mount the new, cloned BCM in the exact same position as the old one. Securely reconnect all electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, horn, and wipers—to confirm proper operation before starting the engine.
Important Post-Installation Information
Our cloning service makes this a nearly plug-and-play process. However, in some vehicles, additional steps may be required:
- Airbag System Sync: If the airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-end scan tool. This re-establishes communication between the two modules.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary to ensure brake lights and traction control function correctly. This is also performed with a professional diagnostic tool.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a qualified technician if you are unsure about any step.
Verified Fitment Across a Wide Range of GM Vehicles
This BCM cloning service is compatible with a vast array of GM cars, trucks, and SUVs. Please match your part number to ensure compatibility. This module, part number 15921352, replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
Fits models including, but not limited to: Acadia, Avalanche, Caprice, Captiva Sport, CTS, DTS, Enclave, Equinox, Escalade, Express Van, G8, Hummer H2, Impala, Lucerne, Monte Carlo, Outlook, Savana Van, SRX, STS, Suburban, Tahoe, Torrent, Traverse, Vue, and Yukon.
Frequently Asked Questions
What exactly is a ‘cloning service’?
Cloning is a process where we perform a 1-to-1 transfer of all the critical data from your original, failing BCM to this fully functional replacement unit. This includes your vehicle’s VIN, mileage, key fob data, and specific equipment options. This ensures the replacement module is a perfect electronic match for your vehicle, requiring no further programming.
Why is cloning better than just buying a new BCM?
A new BCM from the dealer comes blank. It requires expensive, specialized equipment to program it to your vehicle’s VIN and options. Our cloning service bypasses this entire step. You receive a module that is ready to install right out of the box, saving you significant time, money, and the hassle of a dealership visit.
What is the process after I purchase?
After you complete your purchase, you will need to ship your original Body Control Module to us. Once we receive it, our technicians will perform the cloning service and ship both your original module and the ready-to-install replacement back to you promptly.
Do I need to send my keys?
No, you do not need to send your keys. Because we are cloning all the data from your original module, the replacement unit will already recognize your existing keys, saving you another complex step.
Is this a guaranteed fix for my vehicle’s problems?
This service corrects issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the source of the problem before ordering.