Restore Your Vehicle’s Electrical System with a VIN-Programmed BCM
Are you chasing electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or random warning messages on the dash are all classic signs of a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can make your vehicle frustrating and unreliable. This isn’t just an inconvenience; it can affect safety systems and leave you stranded. Stop guessing and replace the core of the problem with a reliable, pre-programmed solution.
This isn’t just a part in a box. We take the hassle and high cost out of the repair by programming this GM Body Control Module with the latest GM software, specifically matched to your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. It’s a direct-fit replacement that restores the original functionality and communication between your vehicle’s various electronic systems.
A Technician’s Notebook: The 2011 Impala Mystery
A customer brought in their ’11 Impala with a laundry list of bizarre issues: the radio would turn off randomly, the ‘Service Airbag’ light was on, and the driver’s side power lock wouldn’t work with the fob. They had already replaced the battery and checked fuses. In my experience, when multiple, unrelated body electronics fail at once, the BCM is the prime suspect. After confirming power and ground to the module, we scanned it and found multiple communication loss codes. Swapping in a VIN-programmed BCM like this one solved every single issue in one go. The key is the programming; without it, the new module is just a paperweight.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM could be the culprit. Confirming these symptoms can give you the confidence that you’re ordering the right part.
- ✔ Intermittent or non-working interior/exterior lights
- ✔ Power windows, locks, or mirrors behaving erratically
- ✔ The security system or keyless entry failing
- ✔ False warnings on the instrument cluster (e.g., “Service Theft System”)
- ✔ Unexplained battery drain when the vehicle is off
- ✔ Communication issues with diagnostic scan tools
Your Straightforward Installation Guide
Installing your new BCM is a manageable job for a DIYer with basic tools. The location varies by model (see fitment list), but is typically under the dash or behind a kick panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: Find the old BCM. It’s often located on the driver’s or passenger’s side, under the dashboard. In some vans, it may be in the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, a couple of relearn procedures are necessary. Using a compatible bi-directional scan tool, perform the ‘Setup SDM Primary Key in BCM’ procedure to ensure the airbag system communicates correctly and extinguish the warning light. Some vehicles may also require a Brake Pedal Position Sensor recalibration. Failure to perform these steps can result in warning lights and improperly functioning safety systems.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers. Please verify your vehicle is on this list. Upon purchase, we require your VIN to ensure perfect programming.
Replaces 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, 95151084
Frequently Asked Questions
Do I need to program this GM Body Control Module?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This saves you from needing expensive dealer-specific tools or paying for programming services.
What information do you need from me?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). We cannot ship the part until we have this information to program it correctly.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your car that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
What happens if I don’t perform the post-installation procedures?
Skipping the ‘Setup SDM Primary Key’ and brake sensor relearn can result in a persistent airbag warning light and potentially affect the proper function of your vehicle’s safety systems. These steps are critical for a complete and safe repair.
Is this a brand new part?
This is a high-quality, tested, and guaranteed functional component that has been expertly programmed with the latest software for your vehicle, ensuring reliable performance and a cost-effective repair.