Restore Full Electrical Control to Your GM Vehicle
Are you battling frustrating and unpredictable electrical problems in your 2008-2012 GMC Savana 1500 or other compatible GM vehicle? A faulty Body Control Module (BCM) is often the hidden culprit behind issues that seem to have no logical cause. The BCM acts as the central command center for your vehicle’s body electronics, managing everything from your power windows and door locks to the interior lights and security system. When it begins to fail, it can create a cascade of confusing and intermittent symptoms that can be a nightmare to diagnose.
This replacement Body Control Module, part number 15093910, is the definitive solution to restore your vehicle’s electronic systems to factory-correct operation. We take the guesswork and hassle out of the repair process. Before we ship the module, our technicians will program it with the latest GM software updates, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This ensures a seamless installation process, eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a contractor come in with his ’11 Savana work van. The dome lights would stay on randomly, draining the battery overnight, and the power locks only worked when they felt like it. He’d replaced the battery twice and checked every fuse he could find. After hooking up our diagnostic tool, we saw communication errors pointing straight to the BCM. We installed a VIN-programmed module just like this one, and it was like the van was new again. All the strange electrical gremlins vanished instantly. It’s a common story—a single failing module can make a perfectly good vehicle seem possessed.
Common Symptoms of a Failing BCM
If you’re experiencing any of the following issues, a faulty BCM is the likely cause. Replacing it with our pre-programmed unit can resolve these problems and get your vehicle back to reliable working order.
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from dashboard warning lights (ABS, Airbag, Check Engine).
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The vehicle’s security system malfunctioning or preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating at the wrong speed or not turning off.
- ✔ Communication errors with diagnostic scan tools.
Why Choose a VIN-Programmed Module?
A BCM isn’t a simple one-size-fits-all part. Your vehicle’s specific options—like power seats, keyless entry, or specific lighting packages—are all controlled by software within the BCM. Our VIN programming service ensures the module we send you is an exact match for your vehicle’s factory configuration. This is the key to a true plug-and-play repair. By installing a module correctly programmed for your 2008-2012 Savana 1500 Body Control Module, you avoid compatibility conflicts that can cause even more issues down the road.
Installation and Post-Install Procedures
For the GMC Savana and Chevrolet Express vans, the BCM is typically located in the center dash area. While the physical replacement is straightforward for a seasoned DIYer or any professional technician, some electronic systems may require a relearn procedure after the new module is installed. Please be aware of the following potential requirements:
- Airbag System Sync: If the airbag warning light illuminates after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed using a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be needed to ensure proper function of the brake lights and stability control systems.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance tailored to your exact vehicle.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM part numbers. Please verify that your original module carries one of the following numbers to ensure perfect compatibility:
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
What does a Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions. This includes power windows, door locks, interior and exterior lighting, security systems, wipers, and more. It acts as a central hub for these systems.
Why do I need to provide my VIN?
Your vehicle’s VIN (Vehicle Identification Number) allows us to program the BCM with the specific software and settings for your exact model, year, and factory-installed options. This makes the installation process much smoother and ensures all features work correctly without needing a trip to the dealer.
Is this a difficult part to install?
For someone with moderate mechanical experience, the physical replacement is not overly complex. However, access to the module’s location (often behind the dash) can be tight. The main challenge can be the post-installation electronic relearn procedures, which may require a professional scan tool.
What happens if I don’t perform the post-install procedures?
If a relearn procedure is required and not performed, you may have persistent warning lights (like the airbag light) or certain systems may not function as intended. For example, if the brake pedal position isn’t recalibrated, your traction control system may not work correctly.
Is there a core charge for this part?
No, there is no core charge for this Body Control Module. You can keep your original, non-working module without needing to send it back to us.