Restore Full Functionality to Your Truck with a Perfectly Cloned BCM
If you’re battling bizarre electrical problems in your 2007-2011 GMC Sierra 3500, a failing Body Control Module (BCM) is the most common culprit. As the central command for your truck’s comfort and convenience features, its failure can lead to a cascade of frustrating issues. This isn’t just a replacement part; it’s a comprehensive repair solution. We provide a high-quality BCM and perform a professional Cloning Service, transferring the exact data from your original module to this one. This ensures a seamless, plug-and-play installation without requiring expensive dealership programming.
The BCM is the brain behind your power windows, door locks, interior and exterior lighting, HVAC system, and security features. When it malfunctions, you might experience one symptom or a dozen at once. Our cloning process makes this the most reliable fix for your 2007-2011 Sierra 3500 BCM, as it retains all the unique settings and software specific to your vehicle’s VIN and options package. Stop chasing electrical gremlins and get a definitive solution that brings your truck back to factory-spec operation.
From the Diagnostic Bay: The Case of the Haunted Sierra
I had a 2008 Sierra 2500HD in the shop that was driving its owner crazy. The dome lights would stay on, the driver’s side window wouldn’t work, and the A/C blower was completely dead. The owner had already replaced the window switch and blower motor resistor with no luck. After connecting my scanner, I saw a handful of communication codes pointing to the BCM. These GMT900 trucks are notorious for BCM failure due to moisture getting to the module, which is located right under the dash. Instead of a risky generic program, we opted for a cloned unit. We transferred his original data to the new BCM, he plugged it in, and every single issue was resolved instantly. It’s the most surefire way to fix these complex systems.
Is Your Sierra Exhibiting These Electrical Gremlins?
A faulty BCM can manifest in numerous ways. If your truck is showing any of these signs, this cloned module is your solution.
- ✔ The air conditioning or heater blower motor works intermittently or not at all.
- ✔ Your power windows, door locks, or mirrors have stopped responding.
- ✔ The airbag warning light is illuminated, often with a DTC B1001 (Setup SDM Primary Key in BCM).
- ✔ Interior or exterior lights flicker, stay on, or won’t turn on.
- ✔ The anti-theft or security system malfunctions, sometimes preventing the truck from starting.
- ✔ You experience strange grounding issues or seemingly unrelated electrical failures.
A Straightforward Guide to Your BCM Swap
The physical installation is simple enough for any DIY enthusiast. The complex part—the programming—is already handled by our cloning service.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most GM trucks of this era, the Body Control Module is located under the driver’s side dashboard, often near the steering column.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the module from its mounting bracket.
- Install the New Module: Seat the new, cloned BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start your truck and test all body functions—lights, windows, locks, HVAC, and wipers—to confirm the repair.
- Post-Install Sync (If Needed): If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
Verified Fitment for Your GM Truck or SUV
This cloning service is compatible with part number 22860591 and other interchangeable modules for a wide range of General Motors vehicles. While this page focuses on the 2007-2011 Sierra 3500 BCM, it also fits the following models. Please verify your part number.
This module is a direct replacement for part numbers: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591.
Fits select models of: Chevrolet Avalanche, Silverado, Suburban, Tahoe; GMC Sierra, Yukon, Yukon XL; Cadillac Escalade, ESV, EXT (2007-2013). Always match your original part number for guaranteed compatibility.
Frequently Asked Questions
Frequently Asked Questions
What exactly is a BCM cloning service?You send us your original, faulty Body Control Module. We use specialized equipment to read all the vehicle-specific data—including VIN, mileage, and option configurations—and write it directly onto the replacement module we provide. This creates a perfect digital copy, ensuring 100% compatibility.