Is Your Vehicle Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a no-start condition, a failing Body Control Module (BCM) is often the culprit. The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and seemingly unrelated issues. Don’t let a faulty module keep your vehicle off the road. This is a direct-fit, reliable solution to restore full functionality to your car, truck, or van.
From the Diagnostic Bay
We had a 2009 Chevy Express van come in that was a nightmare for the owner. The dome lights would stay on, draining the battery overnight, and the power door locks worked intermittently. The owner had already replaced the battery twice. After checking the wiring, we pinpointed the issue: an internal short in the BCM. Swapping it with a properly programmed unit like this one solved every single problem instantly. The owner was thrilled to have his reliable work van back without the constant worry of a dead battery.
Common Symptoms of a Failing BCM:
- ✔ Power windows, mirrors, or seats not working correctly.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Vehicle security system preventing the engine from starting.
- ✔ HVAC (A/C and heater) controls are unresponsive.
- ✔ Warning lights on the dashboard, such as the airbag light.
- ✔ Intermittent electrical functions that are hard to diagnose.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete solution. We take the hassle and high cost out of the repair process. When you order from us, we program the GM Body Control Module to your vehicle’s specific VIN before it even leaves our facility. This means it arrives ready for a much simpler installation, saving you a trip to the dealership and their expensive programming fees. This module is guaranteed to be compatible with a wide range of part numbers, including 10382479, 15872421, 20815898, 22860591, and many more listed in the fitment guide.
Important Post-Installation Information
While our VIN programming handles the majority of the setup, some vehicles may require additional steps after installation to ensure all systems communicate correctly. These are typically simple procedures for a qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be required to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and HVAC controls.
Is this BCM truly plug-and-play?
Because we program it to your VIN, it is as close to plug-and-play as possible. It eliminates the need for dealership programming. However, as noted, some vehicles may require minor additional relearn procedures for systems like the airbags or brake sensor.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive your VIN to perform the necessary programming.
What happens if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to your vehicle’s airbag system. A technician with a capable diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.