Restore Full Electrical Function to Your GM Vehicle
Is your 2008-2012 GMC Savana 2500 experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows, a security system that acts on its own, or warning lights that won’t turn off are all classic signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your van’s body electronics, and when it fails, it can cause a cascade of frustrating and difficult-to-diagnose issues. This replacement BCM is the definitive solution to restore your vehicle’s systems to perfect working order.
The Plug-and-Play Solution for Your 2008-2012 Savana 2500 Body Control Module
Replacing a BCM used to mean a trip to the dealership for expensive programming and calibration. We eliminate that hassle. When you purchase this module, simply provide us with your vehicle’s VIN. Our technicians will program the unit with the latest official GM software specific to your Savana 2500. This ensures that it communicates flawlessly with your van’s other computers right out of the box, making installation straightforward for you or your mechanic. This isn’t just a replacement part; it’s a complete, ready-to-install solution.
From the Diagnostic Bay
We had a 2011 Savana 2500 work van come in that was killing batteries overnight. The owner had already replaced the battery and alternator, but the problem persisted. A parasitic draw test showed a significant current pull even when the van was off. After isolating circuits, we traced the draw to the BCM. It was keeping several circuits ‘awake’ internally, slowly draining the battery. Installing one of our pre-programmed BCMs not only solved the battery drain but also fixed an intermittent issue the owner had with his power door locks he hadn’t even mentioned. A single faulty module can cause a host of seemingly unrelated problems.
Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, etc.).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Vehicle security system engaging randomly or preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when needed.
- ✔ Warning lights on the dashboard (like the airbag light) illuminating for no reason.
- ✔ Communication errors when scanning the vehicle with a diagnostic tool.
- ✔ Unexplained battery drain when the vehicle is turned off.
Post-Installation Procedures
While this module is programmed for your VIN, some GM vehicles require simple relearn procedures after installation to ensure all systems are synchronized. These may include:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper function of the brake lights and stability control systems.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Guaranteed Fitment and Compatibility
This 2008-2012 Savana 2500 Body Control Module is a direct replacement for a wide range of GM vehicles. It is compatible with numerous part numbers, ensuring you get the correct component. This module fits models such as the GMC Acadia, Chevrolet Express, Impala, Traverse, Tahoe, Cadillac DTS, and many more. It directly replaces 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, 25934762, 25934763, and 95151084.
Frequently Asked Questions
What does the Body Control Module do on my Savana 2500?
The BCM is a computer that manages and controls many of your van’s non-engine related electronic functions. This includes power windows, power locks, interior and exterior lighting, the security system, wipers, and various other comfort and convenience features.
Do I need to program this BCM?
No. This module comes pre-programmed to your vehicle’s specific VIN. You must provide your VIN at the time of purchase so we can flash the module with the correct GM software and vehicle options before shipping it to you.
Is this module difficult to install?
The physical installation is typically straightforward, involving the removal of a few dash panels and disconnecting the old module’s electrical connectors. However, some vehicles may require post-installation relearn procedures, such as an airbag system sync, which requires a professional diagnostic tool.
What happens if my airbag light comes on after installation?
This is a known possibility on some GM vehicles. It means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a compatible high-end scan tool to resolve this.
Will this fix my specific electrical problem?
If your issue is related to one of the systems controlled by the BCM (as listed in the symptoms), this module is very likely the solution. However, we always recommend proper diagnosis to confirm the BCM is the root cause and not a wiring or sensor issue.