Stop Chasing Electrical Gremlins in Your GM Vehicle
Is your work van or family SUV acting possessed? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or worse—a vehicle that refuses to start? These frustrating and time-consuming issues often point to a single culprit: a failing Body Control Module (BCM). For a vehicle you depend on, like the Chevy Express 3500, downtime isn’t an option. This pre-programmed Body Control Module is the definitive, hassle-free solution to restore your vehicle’s electronic nervous system and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of baffling electrical problems. If you’re experiencing any of the following, this module is the reliable fix you need:
- Erratic or non-functional interior and exterior lights
- Power windows, door locks, or mirrors working intermittently or not at all
- Alarm system randomly activating or security light staying on
- Instrument cluster gauges behaving strangely
- Communication issues with other vehicle modules, leading to various warning lights
- A no-start condition where the engine cranks but won’t turn over
Instead of paying for expensive diagnostic time and dealership programming fees, this module arrives flashed with the latest GM software and programmed specifically to your vehicle’s VIN. It directly addresses the root cause, saving you time, money, and stress. The 2008-2012 Express 3500 Body Control Module is your path to a reliable repair.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with your vehicle’s specific VIN before shipping. This ensures compatibility and proper function right out of the box.
- ✔ No Dealership Visit Required: Save hundreds of dollars and valuable time by avoiding the dealership’s programming service. This is a direct-fit, ready-to-install solution.
- ✔ Loaded with Latest GM Updates: Your new BCM comes with the most current software from GM, ensuring optimal performance and resolving potential factory bugs.
- ✔ No Core Charge: Keep your old part. There are no core fees or hassles with sending the original module back to us.
- ✔ Broad GM Compatibility: This single module is a direct replacement for dozens of part numbers, covering a wide range of popular GM trucks, vans, and SUVs.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Take on Pre-Programming
“As a technician for over 20 years, I’ve seen countless hours wasted trying to get modules to communicate after installation. The single biggest advantage here is the VIN-programming done before it gets to you. It eliminates the most common point of failure in the repair process. It means the module is already configured for your vehicle’s specific options—from the powertrain to the type of radio it has. This isn’t just a convenience; it’s a smarter, more reliable way to perform the repair, especially for a critical work vehicle like an Express van.”
Important Post-Installation Information
While this BCM is programmed for your vehicle, certain security and safety systems may require a simple ‘relearn’ procedure after installation. This is a standard part of the repair process for many modern vehicles.
- Airbag System Sync: If the airbag warning light is on after installation, 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.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician if you are unsure about these procedures.
Guaranteed Fitment for a Wide Range of GM Models
This 2008-2012 Express 3500 Body Control Module is a direct replacement for the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084. It is compatible with an extensive list of vehicles, including various years and options for the Acadia, Avalanche, Captiva, CTS, DTS, Enclave, Equinox, Escalade, Express, G8, Hummer H2, Impala, Lucerne, Monte Carlo, Outlook, Savana, SRX, STS, Suburban, Tahoe, Torrent, Traverse, Vue, and Yukon.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the instrument cluster. When it fails, you get a variety of strange electrical symptoms.
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as the programming is essential for the part to work correctly in your vehicle.
Is this part difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. The location varies by model (e.g., under the dash, behind the glove box). The key is being aware of the potential post-install relearn procedures, which may require a professional scan tool.
What if my airbag light comes on after installation?
This is a normal possibility. The new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A repair shop with a high-level diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Will this fix my specific problem?
This module is the solution for a wide range of electrical issues. If your vehicle is exhibiting multiple symptoms listed above, a failing BCM is the most likely cause. Proper diagnosis is always recommended, but this is one of the most common failure points for these problems on GM vehicles.