Restore Your Vehicle’s Electrical Functions
Are you tired of dealing with baffling electrical problems in your GM truck or van? Flickering dash lights, power windows with a mind of their own, or door locks that refuse to cooperate are more than just annoyances—they’re classic signs of a failing Body Control Module (BCM). As the nerve center for your vehicle’s body accessories, when the BCM falters, it can cause a cascade of frustrating issues. This is the definitive, reliable solution for your 2003-2007 GM BCM, designed to get your vehicle back to full functionality without the hassle and expense of a dealership visit.
We take the guesswork out of the repair. Simply provide us with your vehicle’s VIN after purchase, and our technicians will program this module with the latest factory software specific to your truck or van. It arrives at your door ready to install, saving you hundreds in programming fees and diagnostic time. This isn’t just a replacement part; it’s a complete, integrated solution.
From the Diagnostic Bay: The Case of the Ghostly Gremlins
I remember a 2006 Silverado 2500 that came into my shop with the most bizarre symptoms. The owner said his radio would shut off randomly, the driver’s side window wouldn’t roll down on hot days, and sometimes the security light would stay on, preventing the truck from starting. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I noticed intermittent communication loss with the BCM. These are the exact kinds of ‘ghostly’ problems a failing 2003-2007 GM BCM can cause. The internal circuit board develops micro-fractures over time, leading to unpredictable behavior. A new, correctly programmed BCM fixed every single issue, and the customer was thrilled to have his reliable work truck back.
Is Your GM Truck or Van Showing These Symptoms?
- ✔ Power windows, mirrors, or door locks not working or operating intermittently.
- ✔ The security or anti-theft light stays illuminated, sometimes causing a no-start condition.
- ✔ Interior dome lights or dashboard lights flicker or fail to turn on/off correctly.
- ✔ The horn sounds unexpectedly or doesn’t work at all.
- ✔ False warnings on the driver information center (e.g., ‘door ajar’).
- ✔ Communication error codes (U-codes) stored when scanned with a diagnostic tool.
- ✔ Erratic behavior from the radio or climate controls.
A Straightforward Guide to Your BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down completely.
- ✔ Locate the BCM: On most Silverado, Sierra, and SSR models, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s typically found behind the center dash panel.
- ✔ Remove Trim Panels: You may need to remove a lower dash panel or knee bolster to gain access. These are usually held in by a few screws or clips.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You’ll hear a ‘click’ when they are properly seated.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, etc.—to confirm the repair was successful.
Important Post-Installation Information
While this 2003-2007 GM BCM is delivered programmed for your VIN, some vehicles may require a final handshake between modules. If your airbag light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure proper brake light and stability control function. These are standard procedures for this type of repair.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of GM vehicles, including:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic): Specific options apply, primarily for non-Crew Cab models.
- GMC Sierra 1500/2500/3500 (2003-2007 Classic): Specific options apply, primarily for non-Crew Cab models.
- Chevrolet Express 1500/2500/3500 Van (2003-2007): Specific options apply.
- GMC Savana 1500/2500/3500 Van (2003-2007): Specific options apply.
- Chevrolet SSR (2003-2006)
Please use the fitment chart to confirm your exact year, model, and options before ordering.
How does the VIN programming work?
After you complete your purchase, you simply send us your vehicle’s 17-digit VIN. Our technicians use this number to load the exact, most current GM software for your vehicle’s specific options onto the BCM before we ship it to you. This ensures it works correctly right out of the box.
Is this a true plug-and-play installation?
Yes, for the vast majority of vehicles. Because we program it to your VIN, you will not need a trip to the dealer for programming. In some cases, a simple relearn procedure for the airbag or brake pedal sensor may be required, which can be done by many independent shops.
What if my airbag light is on after I install it?
This is not a sign of a defective part. It simply means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I have to send my old BCM back?
No. We do not require you to return your original module. There is no core charge associated with this purchase, saving you the time and hassle of a return shipment.
Will this fix my specific electrical problem?
This BCM is the solution for a wide range of common electrical failures. If your vehicle is displaying several of the symptoms listed above (erratic windows, locks, security light, etc.), there is a very high probability that a faulty BCM is the cause. It is the central command for these systems.