Is Your Vehicle Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, malfunctioning power windows, a dead instrument cluster, or random warning messages, a faulty Body Control Module (BCM) is the most likely culprit. The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and frustrating issues. Don’t let these problems persist. Restore full functionality and peace of mind with our pre-programmed replacement BCM.
From the Diagnostic Bay
We had a 2008 Chevy Impala come in that was driving the owner crazy. The radio would turn on and off by itself, the driver’s side window wouldn’t go down, and the security light was always on, sometimes preventing the car from starting. The owner had already replaced the battery and checked fuses with no luck. After a quick scan, we saw multiple communication errors pointing to the BCM. Instead of a complex and expensive rewiring job, we installed a VIN-programmed BCM. In under an hour, every single one of the mysterious electrical issues was gone. It’s a perfect example of how one component can cause a cascade of problems, and how the right part can be a simple, effective solution.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-working power windows, door locks, and mirrors.
- ✔ Interior dome lights or exterior headlights/taillights staying on or not turning on at all.
- ✔ The security or anti-theft system light is illuminated, possibly causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Inaccurate or dead gauges on the instrument panel.
- ✔ HVAC / Climate control system behaving erratically.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair process. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest, most stable software directly from GM. This ensures perfect compatibility and function right out of the box, saving you from a costly trip to the dealership for programming. This module is a direct replacement for a wide range of part numbers, including 10382479, 15828601, 20815898, 22860591, 25892622, and many more.
Installation and Post-Install Notes
Physical installation is typically straightforward, involving disconnecting the battery and swapping the old module with the new one. However, please be aware of the following potential post-installation procedures:
- 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 operation and traction control function.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls and monitors many of your vehicle’s non-engine related functions, such as power windows, locks, lights, wipers, security system, and climate controls.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and configuration. This makes the installation process plug-and-play and avoids a trip to the dealer.
Is this part difficult to install?
The physical replacement is often simple, usually located under the dash and held in by a few bolts or clips. The most important part is providing the correct VIN for programming. Some vehicles may require additional relearn procedures as noted in the description.
Do I need to send my original BCM back?
No, there is no core charge for this part. You can keep your original module.
Will this fix my ‘Service Theft System’ light?
A faulty BCM is a very common cause of issues with the vehicle’s anti-theft system. While not a guarantee for every case, replacing a bad BCM often resolves these warnings.