Are you battling frustrating electrical issues in your GM truck or SUV? Flickering lights, malfunctioning power windows, a stubborn security system, or a vehicle that refuses to start can often be traced back to a single component: the Body Control Module (BCM). This module is the central nervous system for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing and intermittent problems. This listing offers a reliable, plug-and-play solution to restore your vehicle’s proper function.
This is a direct-fit replacement BCM, part number 19208537, that comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load it with the latest GM software updates before it ships, ensuring optimal performance and compatibility. This eliminates the need for expensive trips to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest, sending you a module that’s ready for installation.
We had a 2002 Silverado come in with the classic BCM failure symptoms: the radio would turn on and off by itself, the security light was always on, and the power door locks worked only when they wanted to. The owner had already replaced the battery and checked all the fuses. After a quick scan, we confirmed communication errors with the BCM. Instead of a costly and time-consuming dealer visit, we installed one of our VIN-programmed modules. The installation took less than an hour, and all the strange electrical gremlins were gone instantly. The customer was thrilled to have their truck back to normal without the dealership hassle.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, door locks, or mirrors not working correctly
- ✔ The security system light stays on, preventing the engine from starting
- ✔ Intermittent dashboard warning lights
- ✔ Radio or climate control malfunctions
- ✔ Communication loss with other vehicle modules
Why Choose Our Programmed 2002 Sierra 3500 BCM?
This isn’t just a replacement part; it’s a complete solution. By programming the module to your VIN, we ensure it integrates seamlessly with your vehicle’s existing systems. This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It fits a wide range of 2002-2005 GM vehicles, such as the Sierra, Silverado, Tahoe, Yukon, Suburban, Astro, Safari, and more, restoring factory functionality without the high dealership cost.
Important Post-Installation Information
While this module is designed for straightforward installation, some vehicles may require minor post-installation procedures. These can typically be performed with a capable bi-directional 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 some models, a brake pedal position sensor recalibration 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 procedures.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls various electronic accessories, such as power windows, locks, lights, wipers, and the anti-theft system. It acts as a central hub for these functions.
How does the VIN programming work?
After you place your order, you provide us with your vehicle’s 17-digit VIN. We use this number to access the latest official GM software for your specific vehicle and load it onto the BCM. This ensures the module works correctly with all the options your vehicle was built with.
Is this BCM difficult to install?
Installation is generally straightforward for someone with basic mechanical skills. The BCM is typically located under the steering column or in the center dash area. It involves disconnecting the battery, removing a few trim panels, and swapping the module. However, some post-installation relearn procedures may be required.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.