Is Your Truck Experiencing Baffling Electrical Problems?
If you’re dealing with flickering lights, power windows with a mind of their own, a security system that won’t cooperate, or random warning lights on your dash, a failing Body Control Module (BCM) is likely the culprit. In a hard-working truck like your 2002 Sierra 3500, these aren’t just annoyances—they’re problems that can take your vehicle off the road. This isn’t just a replacement part; it’s the definitive solution to restore your truck’s core electrical functions and get you back to work with confidence.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of frustrating issues. You might be experiencing one or more of the following:
- Power windows, locks, or mirrors working intermittently or not at all.
- Interior or exterior lights staying on or not turning on.
- The security or anti-theft system preventing the engine from starting.
- False warnings appearing on the instrument cluster (e.g., “Service 4WD”).
- Erratic behavior from the radio or climate controls.
This module is the answer. We provide a fully tested, reliable BCM that is programmed specifically for your vehicle before it ever leaves our facility. By ordering our programmed 2002 Sierra 3500 BCM, you are bypassing the expensive and time-consuming trip to the dealership for programming. We handle the complex part so you can focus on the installation.
Features & Real-World Benefits
- ✔ VIN-Specific Programming: We flash the module with the latest GM software using your vehicle’s VIN. This ensures seamless communication with your truck’s other computers, just like the original part.
- ✔ True Plug-and-Play Installation: Because the programming is done in advance, you can install it and, in most cases, be back on the road immediately. No special tools or dealer visits are required for programming.
- ✔ No Core Charge: Keep your old BCM. You won’t have to deal with the hassle or expense of packaging and shipping your original part back to us, saving you time and money.
- ✔ Broad GM Compatibility: This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, fitting a wide range of GM trucks, vans, and SUVs.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty. Drive with the assurance that you’re protected.
Expert Insight: The ‘Programmed on Arrival’ Advantage
As a technician with over two decades of experience, I’ve seen countless vehicle owners try to save a few dollars by pulling a BCM from a junkyard. The problem is, that module is programmed for a different vehicle with different options. It almost never works correctly, leading to more headaches and wasted hours. Our service eliminates that entire gamble. Getting a programmed 2002 Sierra 3500 BCM that is matched to your exact VIN is the single most important step to a successful repair. It ensures all the systems your truck was built with—from power locks to the 4×4 system—are recognized and controlled correctly from the moment you plug it in.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions to reply with your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information, as the programming is a critical part of the process.
What does the BCM actually do on my truck?
The Body Control Module acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, power locks, interior and exterior lighting, the security system, and wipers, among other things.
Will I need to do anything after installing this BCM?
While this is a plug-and-play module, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light is on, or a ‘Brake Pedal Position Relearn’. These procedures require a professional scan tool and are typically only needed in specific situations.
Is this a guaranteed fix for my vehicle’s problems?
This programmed 2002 Sierra 3500 BCM will fix all issues directly caused by a faulty BCM. However, proper vehicle diagnostics are essential. Ensure that the issue is not related to wiring, sensors, or switches before ordering, as this part will not fix problems in other parts of the electrical system.
Do I need to send my old part back?
No. There is absolutely no core charge or need to return your original module. You can keep it or dispose of it at your convenience.