Restore Full Electrical Function to Your GM Vehicle
Are you battling bizarre electrical gremlins in your 2008-2012 Chevy Express 1500 Van? From flickering lights and malfunctioning power windows to a security system that has a mind of its own, these frustrating issues often point to a single culprit: a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of seemingly unrelated problems. This replacement Body Control Module, part number 20864768, is the definitive solution to restore order and reliability to your vehicle’s essential functions.
From the Diagnostic Bay
We had a 2011 Express cargo van come in that was a complete headache for the owner. The dome lights would stay on, the radio would randomly shut off, and the power locks worked intermittently. He had already replaced the battery and checked fuses with no luck. After connecting our diagnostic tool, we saw multiple communication errors all pointing back to the BCM. Once we installed a VIN-programmed BCM like this one, all the strange electrical issues vanished instantly. It’s amazing how this one module can fix so many problems at once.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Vehicle security system faults or alarm sounding unexpectedly.
- ✔ Intermittent no-start or crank-no-start conditions.
- ✔ Warning lights on the dashboard, such as the airbag or service vehicle light.
- ✔ Radio or climate control system malfunctions.
Why Choose Our Programmed 2008-2012 Express 1500 BCM?
Getting your van back on the road shouldn’t be complicated. That’s why we offer a simple, effective solution. This isn’t just a part in a box; it’s a complete service. When you order, you provide us with your vehicle’s VIN. Our technicians then program the module with the latest GM factory software specific to your van’s configuration. This means the module arrives at your door ready for installation, saving you the time, cost, and hassle of a dealership visit for programming. This is the most efficient way to replace your faulty 2008-2012 Express 1500 BCM and get everything working again.
Post-Installation Information
While this module is programmed for a straightforward installation, some vehicles may require minor post-installation procedures for full system integration:
- Airbag System Sync: If the airbag warning light is on 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: 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 if you are unsure about any step of the process.
Guaranteed Fitment for Multiple GM Models
This BCM is a direct replacement for part number 20864768 and is compatible with a wide range of GM vehicles. It also interchanges with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084. Please verify your part number and check the fitment list to ensure compatibility.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic systems, such as power windows, locks, lights, wipers, security system, and more.
Is this part ready to install out of the box?
Yes, this BCM is programmed to your vehicle’s specific VIN before shipping. This makes installation much simpler, though some vehicles may require minor post-install procedures like an airbag sync or brake pedal relearn.
How do I give you my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will then program the module before shipping it to you.
What if my airbag light turns on after I install it?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old part back?
No, there is no core charge for this module. You can keep your original part.