Restore Full Electrical Function to Your GM Van or SUV
Are you battling frustrating electrical problems in your 2008-2012 Savana 2500 Van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often traced back to a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and intermittent symptoms. This replacement Body Control Module, part number 20815898, is the direct-fit, reliable solution to get your vehicle back in perfect working order.
From the Diagnostic Bay
We had a contractor come in with his ’11 Savana work van. His dome lights would stay on, draining the battery overnight, and his power door locks worked only when they wanted to. He was worried about a massive wiring issue. After a quick scan, we pinpointed the BCM as the culprit. Instead of a complex and costly wiring repair, we installed a VIN-programmed BCM like this one. The next day, he called to say all the strange electrical gremlins were gone and his van was reliable again. It’s amazing how this single component can solve so many problems.
Is Your Body Control Module Failing?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Vehicle security system engaging randomly or preventing the engine from starting.
- ✔ Wipers or radio behaving unpredictably.
- ✔ False warnings on the instrument cluster (e.g., “Service Theft System”).
- ✔ Communication errors with other vehicle modules, leading to a no-start condition.
Why Choose Our Programmed Savana 2500 Body Control Module?
This isn’t just a part in a box. It’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by programming the module specifically for your vehicle before it ships. Simply provide us with your Vehicle Identification Number (VIN) during checkout, and our technicians will flash the BCM with the latest GM-certified software and calibrations for your exact build. This eliminates the need for expensive dealership programming or specialized scan tools, making the installation process straightforward and saving you hundreds of dollars.
Post-Installation Procedures
While this module is designed for a simple installation, some vehicles may require additional steps to ensure all systems communicate correctly. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed with a professional-grade diagnostic tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and to satisfy the traction control system.
Note: Specific procedures can vary. We always recommend consulting a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
Do I need to get this module programmed by a dealer?
No! This is the biggest benefit of our service. We program the module to your vehicle’s specific VIN before we ship it to you. It arrives ready for installation, saving you time and money.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your vehicle’s specific options.
What if my airbag light comes on after I install the BCM?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A qualified technician with a high-level scan tool will need to perform the “Setup SDM Primary Key in BCM” procedure to resolve this.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original module.
How do I know if this part will fit my vehicle?
This Savana 2500 Body Control Module fits a wide range of GM vehicles. Please match your original part number to the extensive list in our description or contact us with your VIN to confirm compatibility.