Are you battling frustrating electrical gremlins in your GM vehicle? Issues like flickering lights, malfunctioning power windows, a dead battery overnight, or a security system that has a mind of its own often point to a single culprit: a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing and seemingly unrelated problems. This replacement Body Control Module, part number 15880684, is the direct-fit, reliable solution to restore your vehicle’s functionality and your peace of mind.
From the Diagnostic Bay
We had a 2011 Express 3500 work van come in that was killing batteries every two days. The owner had already replaced the battery and alternator. We ran a parasitic draw test and found a significant drain, but it was intermittent. After hours of tracing circuits, we noticed the interior lights would faintly glow long after the doors were shut. The scan tool showed communication faults with the BCM. Swapping in a VIN-programmed BCM like this one not only solved the battery drain but also fixed a quirky power lock issue the owner had forgotten to mention. It’s a perfect example of how a single module can create multiple headaches.
Your Plug-and-Play 2008-2012 Express 3500 Van Body Control Module Solution
Don’t let a faulty BCM keep your vehicle off the road or force you into an expensive and time-consuming visit to the dealership. We make the process simple. This module is not just a part; it’s a complete service. Upon purchase, you provide us with your vehicle’s VIN, and our technicians will program the module with the latest official GM software specific to your vehicle’s configuration. This ensures that when the part arrives, it’s ready for installation, saving you hundreds in dealer programming fees.
Common Failure Symptoms
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Vehicle security system faults or alarm sounding randomly.
- ✔ Unexplained battery drain (parasitic draw) leading to a dead battery.
- ✔ Horn not working or honking unexpectedly.
- ✔ Dashboard warning lights related to various systems.
- ✔ No communication with the BCM when using a diagnostic scan tool.
Post-Installation Requirements
While this module is programmed for plug-and-play installation, some GM vehicles may require additional security or system relearn procedures after the BCM is installed. Common procedures include an Airbag System Sync if the airbag light is on, or a Brake Pedal Position Relearn. These are standard procedures that can be performed with a capable professional scan tool. Always consult a factory service manual for your specific model for detailed instructions.
Compatible 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 have this BCM programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before shipping it to you. This makes the installation process much simpler and saves you from a costly trip to the dealership.
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). This is crucial for us to load the correct software and ensure compatibility.
Is this a guaranteed fix for my vehicle’s electrical problems?
This BCM will resolve any issues directly caused by a faulty Body Control Module. However, proper vehicle diagnostics are essential, as similar symptoms can sometimes be caused by wiring issues or other faulty components.
What if the airbag light is on after I install the new BCM?
This can happen. It typically requires a ‘Setup SDM Primary Key in BCM’ procedure to be performed with a professional diagnostic tool. This syncs the airbag system (SDM) with the new BCM and will turn off the light.
Is there a core charge for my old part?
No, there is no core charge for this part. You can keep your original module.
Where is the BCM located on my 2009 Express Van?
On the 2008-2012 Express and Savana vans, the Body Control Module is typically located in the center dash area. Always consult a service manual for the exact location and removal procedure for your specific vehicle.