Restore Full Functionality to Your GM Vehicle
Are you dealing with baffling electrical problems in your Cadillac, Chevrolet, or GMC truck or SUV? One moment the power windows work, the next they don’t. The A/C blower motor has a mind of its own, and a persistent airbag light stays on your dash. These aren’t separate issues; they’re classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause widespread and frustrating malfunctions. This module is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
Is Your Escalade Showing These Electrical Faults?
A failing BCM doesn’t just cause one problem—it creates a cascade of them. From my 20+ years of experience, these are the most common symptoms I see in the shop. If your vehicle is experiencing any of these, a new BCM is the most likely solution.
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ HVAC system failures, such as an unresponsive blower motor or erratic temperature control.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Security system errors, leading to no-start conditions, stalling, or misfires.
- ✔ Wipers, radio, or other accessories behaving erratically or not working at all.
- ✔ A cluster of seemingly unrelated body-related DTCs stored in the vehicle’s computer.
Your 5-Minute Path to a Full Repair
Forget expensive dealership visits and programming fees. This BCM is designed for a straightforward, direct-fit replacement that even a DIY enthusiast can complete with basic tools in their own driveway. Get your vehicle back to perfect working order quickly.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most compatible GM models, you’ll find the BCM located under the driver’s side dash, near the steering column. It’s typically held in place by simple clips or a few small bolts.
- Swap the Modules: Carefully disconnect the electrical connectors from the old BCM. The connectors are color-coded and uniquely shaped, making it nearly impossible to mix them up. Remove the old module and install the new one in its place.
- Reconnect and Test: Re-attach the electrical connectors to your new BCM, ensuring they click securely into place. Reconnect the battery terminal. Start the vehicle and test all functions—windows, locks, lights, HVAC, and wipers—to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a bi-directional scan tool to sync the systems. A brake pedal position relearn might also be required for certain models to ensure proper brake light and stability control function.
A Technician’s Notebook
I remember a 2009 Silverado 2500 that came into the bay with a stubborn airbag light and a driver’s window that only worked when it felt like it. The owner had already replaced the window motor and switch with no luck. A quick scan showed DTC B1001 (Option Configuration Error) and a loss of communication code for the driver’s door module. Instead of chasing wires for hours, we went straight for the BCM. These modules are a known failure point for causing network communication breakdowns. We installed a VIN-programmed BCM, performed the 2-minute ‘Setup SDM Primary Key’ procedure with our scanner, and everything came back to life. The airbag light vanished, and the window operated perfectly. It’s a textbook example of how one failing module can create multiple, confusing symptoms.
Why Choose Our VIN-Programmed BCM?
This isn’t just a replacement part; it’s a complete repair solution. Our 2007-2011 Escalade ESV Body Control Module is flashed with the latest GM software and programmed to your specific VIN before it ships. This ensures seamless integration with your vehicle’s existing systems, just like the original. There are no core charges, so you don’t have to worry about sending the old part back. It is built to meet or exceed OEM specifications and is backed by our one-year warranty for your peace of mind.
Verified Fitment for Your GM Truck or SUV
This Body Control Module, also known by part numbers 25844480, 25835966, 15263363, 15878753, 15943678, and others, offers broad compatibility across the GM lineup. Please verify your model and year below. It fits a wide range of vehicles, including:
- ✔ Cadillac Escalade, ESV, EXT (2007-2011)
- ✔ Chevrolet Avalanche 1500 (2007-2011)
- ✔ Chevrolet Silverado 1500, 2500, 3500 (2007-2013)
- ✔ Chevrolet Suburban 1500, 2500 (2007-2011)
- ✔ Chevrolet Tahoe (2007-2011)
- ✔ GMC Sierra 1500, 2500, 3500 & Denali Models (2007-2013)
- ✔ GMC Yukon & Yukon XL (2007-2011)
Frequently Asked Questions
Do I need to take my vehicle to the dealer for programming?
No. This module comes fully programmed to your vehicle’s VIN. It’s ready for installation right out of the box, saving you time and money.
Is this a difficult part to install myself?
Not at all. For most DIYers with basic hand tools, this is a very straightforward job that takes less than 15 minutes. It’s located under the dashboard and is easily accessible.
What happens if my airbag light is still on after installation?
This is a common and easily resolved situation. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s Sensing and Diagnostic Module (SDM). A professional scan tool is used to perform the ‘Setup SDM Primary Key in BCM’ function, which typically resolves the light immediately.
Will this fix my intermittent A/C and power windows?
Yes, in the vast majority of cases. The BCM directly controls the logic for these systems. When it fails, it causes these exact types of erratic behaviors. Replacing it is the standard and effective repair.
Is there a core charge for this part?
No, there is no core charge. You can keep your old part without any penalty or need to return it.