Is Your GM Truck or Van Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, power windows with a mind of their own, a security light that won’t turn off, or other baffling electrical issues, a failing Body Control Module (BCM) is the most likely culprit. In a workhorse like a Silverado, Sierra, or Express van, these aren’t minor annoyances—they’re problems that can take your vehicle off the road. This isn’t just a replacement part; it’s the definitive, hassle-free solution to restore your truck’s critical functions and get you back to work with confidence.
Common Failure Symptoms & Your Direct Solution
A faulty BCM can manifest in numerous ways, often leading to frustrating and expensive diagnostic dead-ends. If your vehicle is experiencing any of the following, this module is the solution you need:
- Intermittent or non-functional power windows, door locks, and interior lights.
- The security or anti-theft light stays on, potentially causing a no-start condition.
- Erratic instrument cluster behavior or warning lights that come on for no reason.
- Communication error codes (U-codes) when scanned with a diagnostic tool.
- Headlights, tail lights, or turn signals not working correctly.
Instead of paying for expensive dealership diagnostics and programming fees, we provide a simple, direct-fit Programmed 2003-2007 Silverado Sierra BCM. We use your vehicle’s VIN to load the latest GM software and vehicle-specific calibration onto the module before it ships. This ensures it communicates perfectly with your truck’s other systems right out of the box.
Features & Tangible Benefits
- ✔ Plug & Play Installation: Arrives pre-programmed to your specific VIN. No dealership visit or special tools are required for programming, saving you time and money.
- ✔ Updated GM Software: We flash the module with the newest, most stable software from General Motors, often correcting the factory flaws that caused the original to fail.
- ✔ No Core Charge: Keep your old part. There’s no need to worry about the cost or hassle of shipping a core back to us.
- ✔ Restored Functionality: Get a permanent fix for those frustrating electrical issues and regain full control over your vehicle’s body electronics.
- ✔ Guaranteed Compatibility: This module is a direct replacement for a wide range of part numbers, including 15167329, 15194169, 15747545, and more.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight from the Shop Floor
As a technician, I’ve seen countless GMT800 trucks come in with these exact issues. The original BCMs from this era are prone to failure from heat cycles and aging internal components, causing cold solder joints and micro-fractures on the circuit board. A used BCM from a salvage yard is just a ticking time bomb with the same inherent flaws. Our solution provides a module loaded with corrected software that addresses many of these original drivability and logic issues, making it a more reliable and long-lasting repair than simply swapping in another old part.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to access the exact factory calibration file for your truck’s specific options—like engine size, transmission type, and power accessories. Programming the BCM with this data ensures it works seamlessly with your vehicle, just like the original part did from the factory.
Is this a difficult part to install?
For most of the trucks listed, the BCM is located under the driver’s side of the dashboard, near the steering column. It typically involves removing a lower dash panel and a few bolts or clips. For someone with basic mechanical skills and tools, it’s a very manageable job. For the van models, it is located in the center dash area.
Will I need to perform any procedures after installation?
In some cases, yes. If your airbag light comes on, a simple ‘Setup SDM Primary Key’ procedure may be needed with a capable scan tool. A Brake Pedal Position relearn might also be necessary. These are standard procedures when replacing a BCM and are detailed in the product information.
How do I know for sure that my BCM is the problem?
While the symptoms listed are strong indicators, the only way to be 100% certain is with a professional diagnosis using a high-level scan tool that can check for communication with the module. However, if you are experiencing multiple, unrelated electrical accessory failures, the BCM is the most common point of failure and the logical place to start.
What happens if I forget to provide my VIN?
We cannot ship your order without a VIN. The programming is the most critical part of our service. To avoid delays, please provide your 17-digit VIN during checkout or send it to us in a message immediately after placing your order.
Is this the correct Programmed 2003-2007 Silverado Sierra BCM for my truck?
This module fits a wide range of 2003-2007 GM trucks and vans, including the Silverado, Sierra, Express, and Savana, as listed in the detailed fitment chart. It directly replaces part numbers 15747545, 15167329, 15194169, and others. Please check the fitment list to confirm compatibility with your specific model and year.