Are you battling frustrating electrical gremlins in your 2008-2012 GMC Savana 3500 Van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of confusing and intermittent problems. This can lead to costly diagnostic time and unnecessary part replacements. Get the definitive solution with our pre-programmed Body Control Module, designed to restore your van’s functionality and reliability.
From the Diagnostic Bay
We had a contractor’s 2011 Savana 3500 in the shop that was driving him crazy. One day the dome lights wouldn’t turn off, draining the battery. The next, the power door locks would cycle randomly while driving. He’d already replaced the battery and a few switches with no luck. After hooking up the scanner, we saw a flood of communication error codes pointing to the BCM. Instead of a complex repair, the fix was a straightforward replacement with a VIN-programmed module. Once installed, all the strange electrical issues vanished. It’s a classic case of a single faulty component creating a dozen confusing symptoms.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ Erratic instrument cluster behavior, with gauges dropping out or warning lights appearing randomly.
- ✔ Vehicle security system faults or the engine failing to start due to anti-theft issues.
- ✔ Problems with the heating and A/C blower motor controls.
- ✔ Communication errors with other vehicle modules (DTC U-codes).
The Plug-and-Play Solution: A Programmed Savana 3500 Body Control Module
Don’t waste time and money with a trip to the dealership. We simplify the repair process. This replacement Savana 3500 Body Control Module arrives at your door already programmed to your vehicle’s specific VIN. We flash it with the latest GM software updates, ensuring optimal performance and compatibility. This means no expensive programming tools or dealer appointments are required for the initial setup. Simply provide us with your VIN during checkout, and we’ll handle the rest.
Installation and Post-Install Notes
While the module is programmed for your van, some GM vehicles require a security or system synchronization procedure after installation. These are often simple and can include:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool may be needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with your existing airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Guaranteed Fitment
This BCM is a direct replacement for a wide array of GM vehicles and part numbers. It is compatible with part number 15299986 and serves as a replacement for the following part numbers: 10382479, 15093910, 15276271, 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
Do I need to have this BCM 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 a trip to the dealership and additional programming fees.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can add it as a note to your order or reply to your order confirmation email with the information.
What tools are needed for the post-installation procedures?
Procedures like the Airbag System Sync or Brake Pedal Position Relearn typically require a professional-grade bidirectional scan tool. Many local repair shops can perform these quick procedures for you if needed.
Is there a core charge for this part?
No, there is no core charge. You can keep your old, faulty module without needing to send it back.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of security system issues and ‘Service Theft System’ messages on these GM vehicles. Replacing it with a properly programmed unit often resolves these problems.