Restore Control and Eliminate Electrical Headaches in Your GM Van
Is your Savana van acting possessed? Flickering lights, malfunctioning power windows, a security system that randomly goes off, or an engine that refuses to start can all point to one culprit: a failing Body Control Module (BCM). As the central command center for your vehicle’s electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. Instead of paying for expensive diagnostics and programming at a dealership, get a reliable, plug-and-play solution right here.
This isn’t just a replacement part; it’s a complete service. We perform a professional cloning service, transferring all the critical data from your original module to this replacement unit. This means the module arrives at your door ready to install, pre-programmed with your van’s specific VIN and options. No need for a trip to the dealer or expensive scan tools for programming. You get a seamless, cost-effective repair that gets your workhorse back on the road.
A Technician’s Notebook: The Case of the Ghostly Fleet Van
I remember a local contractor bringing in his 2011 Savana 2500. The complaint was bizarre: the dome lights would stay on, the radio would randomly change stations, and the power locks had a mind of their own. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a flood of U-codes (communication errors) pointing to a network disruption. In my 20+ years of experience, these symptoms almost always lead back to the BCM. The internal circuitry fails, causing it to send erratic signals across the vehicle’s data bus. We swapped in a cloned BCM, and just like that, all the electrical gremlins vanished. It’s a classic failure mode for these hard-working vans, and a cloned module is the most efficient fix.
Is Your Savana Van Showing These Signs?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution you need.
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or horn activating without reason.
- ✔ A persistent “Service Theft System” message or a no-start condition.
- ✔ Communication error codes (U-codes) stored in other modules.
- ✔ Inconsistent or non-working dashboard gauges.
Your Straightforward BCM Installation Guide
Replacing the BCM on your Savana or Express van is a manageable job for a DIYer. The module is typically located in the center dash area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: You will likely need to remove some dash panels to access the BCM. On most Savana and Express vans, it’s located behind the lower center dash trim, near the floor.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, cloned BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair was successful.
Important Post-Installation Steps
Because this module is cloned from your original, most functions will work immediately. However, in some cases, security-related systems may require a relearn procedure.
- ✔ Airbag System Sync: If the airbag warning light is illuminated 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 proper brake light and traction control operation. This also typically requires a capable scan tool.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified technician for procedures specific to your vehicle.
Verified Compatibility for Your Vehicle
This BCM is a direct replacement for a wide range of GM vehicles and is compatible with numerous part numbers. Please verify your part number or vehicle in the list below. This unit is guaranteed to fit the 2008-2012 Savana 1500 BCM and many other models.
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
Frequently Asked Questions
What is a ‘Cloning Service’?
Cloning is a process where we transfer the exact software, VIN, and vehicle-specific settings from your original BCM to this replacement unit. This makes the installation plug-and-play, eliminating the need for expensive dealership programming.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, you must ship your original BCM to us after purchase. We will perform the service and ship both your original module and the newly programmed replacement back to you.
Why do you need my VIN?
We use your Vehicle Identification Number (VIN) to verify the correct hardware and to load the latest GM software updates onto the module before the cloning process begins. This ensures perfect compatibility and performance.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data. Please contact us with details about your module’s condition if you have concerns.
Will I need special tools for the installation?
For the physical installation, you’ll only need basic hand tools to access and remove the module. No programming tools are required. However, as noted, a professional scan tool might be needed for post-install procedures like the airbag system sync if the warning light appears.