Are you chasing electrical gremlins in your Chevy Express or GMC Savana work van? One minute the A/C works, the next it’s dead. The power locks have a mind of their own, and you’re seeing a persistent airbag light. As a technician with over two decades of experience, I’ve seen this exact scenario hundreds of times. The culprit is almost always a failing Body Control Module (BCM), the electronic nerve center of your vehicle’s comfort and security features.
This replacement BCM, compatible with part number 15137394, is the definitive solution for your 2004-2007 Express 3500 Van BCM problems. We take the hassle out of the repair by pre-programming the module to your van’s specific VIN. This means no expensive trips to the dealership for programming—it arrives ready for a true plug-and-play installation, restoring full functionality right out of the box. Get your workhorse back on the road and reliable again.
A Technician’s Notebook: The Case of the Contractor’s Van
A local contractor brought in his ’06 Express 3500. His complaint was a classic BCM failure: the radio would cut out, the dome light would flicker, and his battery was draining overnight. He’d already replaced the battery and alternator. After a quick scan, we found multiple communication loss codes (U-codes) and a B1001 code. Instead of spending hours tracing wires, we swapped in a VIN-programmed BCM. The install took less than 10 minutes, and every single issue was resolved on the first try. It’s a testament to how a targeted, quality part can save hours of diagnostic headaches and get you back to work.
Is Your GM Vehicle Showing These Red Flags?
- âś” Intermittent or non-functional power windows, door locks, or mirrors.
- âś” HVAC blower motor or climate controls working sporadically or not at all.
- âś” An active airbag warning light, often accompanied by DTC B1001 (Option Configuration Error).
- âś” Erratic interior or exterior lighting behavior (flickering, staying on, or not turning on).
- âś” Vehicle security system faults, causing no-start or crank-no-start conditions.
- âś” Communication errors with other modules on the data bus.
DIY-Friendly Installation: Your Step-by-Step Guide
Replacing your 2004-2007 Express 3500 Van BCM is a straightforward job that most DIYers can handle in minutes. For Express and Savana vans, the BCM is typically located in the center of the dash.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and allow the system to reset.
- Locate the Module: Find the BCM, which is usually mounted behind the center dash trim panel in Express/Savana models. On trucks and SUVs, it’s often under the steering column.
- Swap the Connectors: Carefully unplug the electrical connectors from the old BCM. They have release tabs that need to be pressed. Plug them securely into your new, pre-programmed module.
- Secure the New BCM: Mount the new BCM in the same position as the old one.
- Power Up: Reconnect the battery terminal. Start the vehicle and test all functions—lights, locks, windows, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, if the airbag light remains on, a ‘Setup SDM Primary Key’ procedure may be needed using a professional scan tool. A brake pedal position relearn might also be required on certain models.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15137394 and interchanges with 15116066, 15137393, 15198116, and others. It is guaranteed to fit the following models with the specified options:
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SILVERADO & SIERRA 1500/2500/3500 (Crew Cab) 03-07 (Classic)
TAHOE / YUKON / YUKON XL / SUBURBAN 03-06
AVALANCHE 1500/2500 03-06
ESCALADE / ESV / EXT 03-06
HUMMER H2 03-07
Frequently Asked Questions
Does this module really come programmed?
Yes. We flash the module with the latest GM software and program it to your vehicle’s VIN before shipping. It arrives ready to install, with no further programming needed.
Do I need to return my old BCM?
No. There is absolutely no core charge or need to send your old part back to us. You can keep it or dispose of it at your convenience.
What tools are required for installation on an Express Van?
Typically, you will only need basic hand tools to remove the dash trim panel, such as a trim removal tool and a screwdriver or small socket wrench. The installation itself requires no special tools.
My airbag light is on after installing. What should I do?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s SDM. A mechanic with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is this part number 15137394 the same as 15116066?
Yes, these part numbers are interchangeable. Our module is a direct replacement for a wide range of GM BCM part numbers, including 15137394, 15116066, 15136225, and many others, ensuring broad compatibility.