Tired of Chasing Electrical Gremlins in Your GM Truck?
If your 2007-2011 Silverado 2500 is acting possessed—with flickering lights, a dead climate control, or random warning messages—the Body Control Module (BCM) is the likely culprit. As the central nervous system for your truck’s comfort and convenience features, a failing BCM can cause a cascade of frustrating, hard-to-diagnose problems. This module, part number 15878753, is a direct-fit replacement that restores full functionality. We make the repair process simple with our professional Cloning Service. You send us your original BCM, we transfer all the vehicle-specific data to this replacement unit, and then we ship both modules back to you. The result is a true plug-and-play solution that requires no expensive trip to the dealership for programming.
Case Study: The Silverado with a Mind of Its Own
A customer brought in a 2009 Silverado 2500 HD that was a diagnostic nightmare. The radio would turn on and off, the driver’s side power window worked intermittently, and the airbag light was on with a persistent DTC B1001. After checking all the usual suspects—fuses, relays, and grounds—we focused on the BCM. On these GM trucks, I’ve seen internal corrosion or simple electronic failure within the BCM create these exact symptoms. By installing a cloned BCM, we transferred the truck’s original programming, including the critical security data for the airbag system. The new module immediately solved all the electrical issues, and the customer was back on the road without the multi-day wait and high cost of a dealership repair.
Is Your Truck Showing These Telltale BCM Failure Symptoms?
- ✔ The heat or A/C blower motor stops working or only works on certain speeds.
- ✔ Your power door locks or windows behave erratically or fail completely.
- ✔ The security system malfunctions, causing no-start conditions or false alarms.
- ✔ Interior dome lights or exterior lamps stay on or won’t turn on at all.
- ✔ An airbag warning light is illuminated, often with a DTC B1001 (Setup SDM Primary Key in BCM).
- ✔ You’re seeing various communication error codes (U-codes) when scanning the vehicle.
A Straightforward Guide to Your BCM Replacement
Our cloning service makes this a job most DIYers or any professional mechanic can handle in minutes. By transferring your original module’s data, we eliminate the complex programming steps. Here’s how simple the physical swap is:
- Safety First: Always disconnect the negative terminal from your truck’s battery before working on any electronic components.
- Locate the BCM: On most GMT900 platform trucks, the BCM is located under the driver’s side of the dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: The BCM is held in place by retaining clips and has several large electrical connectors. Carefully press the release tabs on each connector and pull them straight out. Then, release the clips holding the module and remove it from its bracket.
- Install the New Module: Seat your newly cloned BCM into the mounting bracket and firmly reconnect all the electrical connectors. You’ll hear a click as they lock into place.
- Final Steps: Reinstall any trim panels you removed and reconnect the battery terminal. Start the truck and verify that all functions (lights, windows, HVAC, etc.) are working correctly.
Post-Installation Note: While our cloning service handles the primary programming, some vehicles may require a post-install procedure like an ‘SDM Key Relearn’ or ‘Brake Pedal Position Relearn’ if specific warning lights appear. This is typically done with a bi-directional scan tool.
Guaranteed Fitment for Your GM Truck or SUV
This Body Control Module is a compatible replacement for part number 15878753 and other interchangeable numbers on a wide range of General Motors vehicles. Please verify your part number or contact us to ensure compatibility. This module fits the following models:
SILVERADO 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), under steering column)
SILVERADO 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
AVALANCHE 1500 07-11 Body Control (BCM)
SUBURBAN 1500 & 2500 07-11 Body Control (BCM)
TAHOE 07-11 Body Control (BCM)
YUKON & YUKON XL 07-11 Body Control (BCM)
…and many other GM models from 2007-2013. Please check the full compatibility list or contact us with your VIN.
Frequently Asked Questions About the BCM Cloning Service
How does the BCM cloning service work?
After you place your order, you’ll ship your original BCM to us. Our technicians will extract the unique, vehicle-specific data from your module and flash it onto the replacement unit. We then ship both your original module and the ready-to-install replacement back to you. This ensures perfect compatibility without dealer intervention.
Why is my airbag light on after installing a BCM?
This is common. The BCM and the Sensing and Diagnostic Module (SDM, or airbag module) share security information. If the airbag light is on after installation (often with code B1001), a procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional scan tool to sync the modules.
Do I need to return my old BCM as a core?
No, there is no core charge. We require your original module to perform the cloning service, but it will always be returned to you along with your newly programmed replacement part.
Can I just install this module without the cloning service?
No. A BCM that is not programmed to your vehicle’s specific VIN and options will not function correctly. It can lead to a no-start condition, incorrect feature operation, and persistent warning lights. Our cloning service is essential for a successful repair.
What tools are needed for the post-installation procedures?
Procedures like the SDM key relearn or brake pedal position relearn require a bi-directional diagnostic scan tool. Many professional shops and advanced DIYers have these tools. If you do not, a local repair shop can typically perform these quick procedures for a minimal charge.