Are you experiencing frustrating electrical issues in your GMC Savana or other compatible GM vehicle? A failing Body Control Module (BCM) is often the culprit behind a host of problems that can seem unrelated, from flickering lights and malfunctioning power windows to security system errors and even no-start conditions. The BCM acts as the central hub for your vehicle’s body electronics, and when it fails, it can disrupt daily operations and take your work van off the road. This replacement Body Control Module is the reliable, plug-and-play solution to restore full functionality to your vehicle.
We take the guesswork and hassle out of the replacement process. Unlike a standard part from a dealership, this BCM comes pre-programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates, ensuring it communicates perfectly with your vehicle’s existing systems right out of the box. This eliminates the need for expensive programming tools or a trip to the dealer for calibration.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system engaging randomly or preventing the vehicle from starting.
- ✔ The radio or infotainment system behaving strangely.
- ✔ False warning lights appearing on the instrument cluster.
- ✔ Issues with the heating and air conditioning controls.
- ✔ A parasitic battery drain that kills your battery overnight.
From the Diagnostic Bay
We had a contractor’s 2011 Savana 3500 in the shop that was a complete electrical nightmare. The driver said the dome lights would stay on, the radio would cut out, and sometimes the power locks wouldn’t respond. He had already replaced the battery twice. After checking the usual suspects, we traced the issue to a faulty BCM that was sending erratic signals across the network. Installing a VIN-programmed Savana 3500 Body Control Module like this one solved all three problems instantly. It’s a perfect example of how one central component can cause widespread, confusing issues.
Installation and Post-Install Considerations
Replacing the BCM is a straightforward process for a seasoned DIYer or any professional technician. After installation, most functions should be immediately restored. However, depending on your vehicle’s specific configuration, a couple of additional steps might be necessary:
- 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: Some models may require a brake pedal position sensor relearn to ensure correct brake light operation and to satisfy the traction control system.
This module is a direct replacement for a wide range of GM part numbers, ensuring broad compatibility. Please verify your original part number against the list below.
This BCM is a direct replacement for 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, 95151084
Frequently Asked Questions
Do I need to program this BCM?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN during checkout or via email, and the module will arrive ready for installation.
Where is the BCM located on a 2008-2012 Savana 3500?
On most Savana and Express vans of this generation, the BCM is located behind the center dash area, often accessible by removing lower dash panels. Always consult a service manual for the exact location on your vehicle.
What happens if I forget to provide my VIN?
We cannot ship your order without the VIN. Programming is a critical step to ensure the part works correctly with your vehicle. We will contact you to request the VIN if it is not provided at the time of purchase.
Is this a guaranteed fix for my electrical problems?
This Savana 3500 Body Control Module will resolve any issues directly caused by a faulty BCM. If you are experiencing problems like erratic lights, non-working power accessories, or security system faults, a failing BCM is the most likely cause.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original module without needing to send it back to us.