If you’re dealing with baffling electrical problems in your 2008-2012 Savana 3500 Van, you know how frustrating it can be. Flickering interior lights, malfunctioning power windows and locks, or a security system that acts up on its own can bring your work day to a halt. The Body Control Module, or BCM, is the central command for these systems, and when it fails, it can create a cascade of confusing issues. This isn’t just an inconvenience; it’s a reliability problem you can’t afford.
This is your direct-fit, hassle-free solution. We offer a genuine replacement Body Control Module that comes fully programmed to your specific vehicle using your VIN. This critical step ensures all the factory-intended functions and options for your van work correctly right out of the box. We load the latest GM software updates, which can often resolve issues that were present even in the original factory programming. By providing us with your VIN at checkout, you eliminate the need for expensive dealership programming or specialized scan tools for the initial setup.
Is Your Savana Van Exhibiting These Symptoms?
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ The radio or instrument cluster displays acting strangely.
- ✔ Communication error codes, such as U0140, stored in the system.
- ✔ A persistent battery drain that you can’t trace to a specific component.
From the Diagnostic Bay
I remember a 2011 Savana 3500 work van that came into my shop. The owner, a plumber, was at his wit’s end. His dome lights would stay on, draining the battery overnight, and his power locks only worked when they felt like it. He’d already replaced the battery twice. We scanned it and found a slew of communication codes. After checking the network, we pinpointed the BCM. These modules are notorious for internal solder joint failures and water intrusion damage, especially in hard-working vans. Installing a pre-programmed BCM like this one had him back on the road in under an hour, with all issues resolved. It’s a common failure, and this is the most efficient fix.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10-15 minutes to allow all systems to power down completely.
- ✔ Locate the BCM: On most Savana and Express vans, the BCM is located behind the center dash panel, often near the main fuse block area. You may need to remove a few trim pieces to gain access.
- ✔ 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 your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal.
- ✔ Test and Verify: Start the vehicle and test all body functions: lights, locks, windows, radio, etc. Check the instrument cluster for any warning lights.
Important Post-Installation Steps
While this module is programmed for your van, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- 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 operation and to keep the traction control system happy.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Compatibility for Your GM Vehicle
This BCM is a direct replacement for part number 25934762 and is also compatible with 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, 25934763, and 95151084. It fits a wide range of GM vehicles, including:
- 2008-2012 GMC Savana 1500/2500/3500 Van
- 2008-2012 Chevrolet Express 1500/2500/3500 Van
- 2007-2012 GMC Acadia
- 2006-2012 Chevrolet Impala
- 2010 Cadillac Escalade, Chevrolet Tahoe/Suburban, GMC Yukon
- …and many other models as listed in the fitment chart.
Frequently Asked Questions
Does this BCM need to be programmed by a dealer?
No. We program the module to your vehicle’s VIN before we ship it. It arrives ready for installation, saving you hundreds in dealership fees.
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls electronic body functions not related to the engine, such as power windows, locks, lights, security system, and wipers.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module, so there’s nothing you need to send back to us.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically synced with the airbag’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key’ procedure.