Restore Your Vehicle’s Electrical System with a Plug-and-Play Solution
If you’re dealing with bizarre electrical issues in your GM vehicle—like power windows with a mind of their own, flickering interior lights, or dashboard warnings that make no sense—you’re likely facing a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. This isn’t just an annoyance; it can impact security, lighting, and convenience features you rely on every day.
This replacement Programmed Body Control Module is the definitive solution to get your car, truck, or van back to normal. We take the guesswork and dealership hassle out of the equation. Simply provide your vehicle’s VIN at checkout, and our expert technicians will flash the module with the latest, most stable GM software specific to your vehicle’s configuration. It arrives at your door ready for installation, saving you hundreds in dealership programming fees and diagnostic time.
A Technician’s Notebook: The Case of the Haunted Express Van
I once had a 2011 Chevy Express 3500 work van in my bay that was driving the owner crazy. The radio would turn on and off by itself, the dome lights wouldn’t work, and the power locks were intermittent. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple ‘U’ codes, indicating a loss of communication with various modules. This is a classic sign. The BCM acts as a network gateway, and when it fails, it creates chaos on the CAN bus. After confirming power and ground to the BCM were good, we installed a VIN-programmed module just like this one. Instantly, all the gremlins vanished. It’s a repair I’ve done hundreds of times on these GM platforms.
Common Signs of a Failing GM BCM
A bad BCM can manifest in many ways. If your vehicle is showing these symptoms, this module is the likely fix:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system acting erratically or preventing the vehicle from starting.
- ✔ Inaccurate gauge readings or warning lights on the instrument cluster (like the airbag light).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or U0164.
- ✔ Features like remote keyless entry or windshield wipers failing to operate correctly.
Your Straightforward BCM Installation Guide
Installing your new Programmed Body Control Module is a manageable job for a DIYer with basic tools. While the exact location varies (see fitment list), the process is generally similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: The module is typically found under the driver’s side dash, near the steering column, or behind a kick panel. On some vans and SUVs, it may be in the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab that needs to be pressed or lifted. Once disconnected, unbolt the old BCM from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some vehicles may require additional relearn procedures as outlined below.
Important Post-Installation Information
While this module is sent ready for your vehicle, certain security and safety systems may require a ‘handshake’ with the new BCM. This is normal. The most common procedures are:
- Airbag System Sync: If the airbag 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 relearn may be required to ensure correct brake light operation and traction control function.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified professional if you are unsure about any step.
Will This Fit My Vehicle?
This module is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers. Please verify your vehicle is on this list. This unit is compatible with part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, and many more.
Frequently Asked Questions
How does the VIN programming work?
After you place your order, you will need to send us your 17-digit Vehicle Identification Number (VIN). Our technicians use this VIN to load the correct GM-certified software and vehicle-specific options onto the module before shipping it to you.
Is this a plug-and-play part?
For most vehicles, yes. Because it arrives pre-programmed, you can typically install it and restore function immediately. However, some models may require a simple security relearn or a specific scan tool procedure for the airbag or brake systems, as noted in our description.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Will this fix my ‘Service Airbag’ light?
If the light is on due to a communication fault with a bad BCM, yes. After installation, the ‘Setup SDM Primary Key’ procedure may be needed with a high-end scan tool to sync the systems and turn off the light.
What tools do I need for installation?
Basic hand tools are usually all that’s required for the physical installation, such as a socket set and screwdrivers. No special programming tools are needed on your end, as we handle all the flashing beforehand.