Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your Cadillac Escalade, Chevy Silverado, or GMC Sierra? Flickering lights, unresponsive power windows, a malfunctioning HVAC system, or a persistent airbag light are common signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it malfunctions, it can cause a wide range of confusing and intermittent issues. This genuine GM 25844480 BCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
From the Diagnostic Bay
We recently had a 2009 Silverado 1500 in the shop with a classic case of BCM failure. The owner had already spent hundreds replacing the driver’s side window switch and the blower motor resistor, yet the problems persisted. The windows would work one day and not the next, and the A/C was completely unpredictable. A quick scan revealed multiple communication codes pointing to the BCM. After installing a VIN-programmed module like this one, all the strange electrical issues were resolved in under 10 minutes. Don’t chase symptoms; solve the root cause with the correct part.
Symptoms of a Failing BCM & Key Benefits
- ✔ VIN Programmed for Your Vehicle: This module is flashed with the latest GM software and programmed to your vehicle’s VIN. This eliminates the need for expensive dealership programming and ensures all vehicle options work correctly right out of the box.
- ✔ Fixes Common Electrical Faults: Puts an end to erratic behavior in power windows, door locks, interior/exterior lighting, and windshield wipers.
- ✔ Restores Climate Control: Corrects issues with unresponsive HVAC controls or an intermittent blower motor, restoring comfort to your cabin.
- ✔ Solves Security & Starting Problems: Addresses security system malfunctions, stalling, and other grounding-related issues that can prevent your vehicle from starting.
- ✔ Clears Diagnostic Trouble Codes: A direct solution for DTCs like B1001 and other communication errors related to body functions.
- ✔ No Core Charge: Keep your old part. There’s no need to worry about the cost or hassle of a core return.
Solving Issues with the 2007-2011 Escalade BCM
Replacing the 2007-2011 Escalade BCM is a straightforward repair that most DIY mechanics can complete in minutes. The module is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the negative battery terminal, unplug the electrical connectors from the old BCM, remove it from its bracket, and install the new one in its place. Once reconnected, your vehicle’s primary functions should be immediately restored.
In some cases, particularly if you had an airbag warning light, a post-installation procedure called “Setup SDM Primary Key in BCM” may be required. This is not a reprogramming but a security handshake between the new BCM and the airbag system, which can be performed with a compatible high-level scan tool. A brake pedal position relearn may also be necessary on certain models. This ensures your brake lights and traction control system function correctly.
This module is a direct replacement for a wide range of part numbers, including: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591.
Frequently Asked Questions
Is this BCM really plug-and-play?
Yes. We program the module to your vehicle’s VIN before shipping. This ensures it communicates correctly with your truck’s other computers and features, eliminating the need for a trip to the dealer.
Why is my airbag light on after installation?
This can happen as a security measure. The new BCM needs to sync with the airbag system’s Sensing and Diagnostic Module (SDM). A procedure called “Setup SDM Primary Key in BCM” must be performed with a professional scan tool to clear the light.
Where is the BCM located on my 2008 Silverado?
On most 2007-2013 GM trucks and SUVs, including the Silverado, Tahoe, and Sierra, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
Do I need to send my old part back?
No. This part is sold with no core charge, so you can keep or dispose of your original module without any extra fees or hassle.
Will this part fit my 2010 GMC Yukon Denali?
Yes, this BCM fits a wide range of GM vehicles from 2007-2013, including the GMC Yukon and Denali models. It serves as a direct replacement for numerous original part numbers.