If your GM truck or van is starting to feel haunted by electrical gremlins—power windows with a mind of their own, dash lights flickering randomly, or a security system that won’t cooperate—you’re likely dealing with a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty BCM can turn a reliable workhorse into a source of daily frustration. It’s the central hub for your vehicle’s comfort and convenience features, and when it goes, it takes them all down with it.
This isn’t just another part; it’s a permanent fix. We take the guesswork and high dealership costs out of the equation. This BCM, compatible with part number 15167329 and others, arrives at your door fully programmed with the latest GM software specifically for your vehicle. All we need is your VIN. This means no expensive trips to the dealer for programming, saving you time and hundreds of dollars. You get a reliable module that restores function right out of the box.
From the Diagnostic Bay
I remember a 2006 Savana work van that came into my shop. The owner was at his wit’s end. The radio would turn on and off, the dome light would stay on, and the power locks worked intermittently. He’d replaced the battery and checked fuses, but nothing worked. After connecting my scan tool, I saw a slew of U-codes (communication errors) all pointing back to one culprit. The BCM was failing internally, creating chaos on the vehicle’s data network. We installed a pre-programmed BCM just like this one. In under an hour, every single issue was gone. It’s a common failure, but thankfully, it’s a straightforward fix with the right part.
Is Your GM Truck or Van Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security or anti-theft light is illuminated, preventing the engine from starting.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ The radio or climate control system is unresponsive.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, especially communication codes like U0140, U0155, or other B-series codes.
A Straightforward Guide to Your BCM Swap
For Savana and Express vans, the BCM is typically located in the center of the dash. While professional installation is always an option, many DIYers can handle this job. Always consult a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. It’s usually a black box with several large electrical connectors.
- Disconnect and Remove: Unplug all wiring harnesses from the old BCM. They have release tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in the same location and securely reconnect all the wiring harnesses. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Information
While this module is programmed for a plug-and-play experience, some vehicle systems may require a relearn procedure to sync with the new BCM. This is normal.
- Airbag System Sync: If your airbag warning light is on after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to complete.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and stability control function correctly.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a qualified technician for procedures specific to your truck or van.
Verified Compatibility for Your Vehicle
This BCM is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of GM models, including:
- Chevrolet Express 1500/2500/3500 Vans (2003-2007)
- GMC Savana 1500/2500/3500 Vans (2003-2007)
- Chevrolet Silverado 1500/2500/3500 Pickups (2003-2007 Classic)
- GMC Sierra 1500/2500/3500 Pickups (2003-2007 Classic)
- Chevrolet SSR (2003-2006)
Please use the detailed fitment chart to confirm compatibility with your specific year, model, and options before ordering.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings your vehicle had from the factory. This ensures all your specific options work correctly and makes the installation process as simple as possible.
Is this BCM difficult to install?
For someone with basic mechanical skills, the installation is very manageable. It involves removing some dash panels and swapping the module. The key benefit is that our pre-programming eliminates the most difficult part: the computer setup.
What if the airbag light comes on after I install it?
This is a possibility and is not a sign of a defective part. It simply means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A repair shop with a capable scan tool can perform the ‘Setup SDM Primary Key’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module, which saves you the time and expense of shipping it back.
Will this fix my ‘Service 4WD’ message?
While the BCM communicates with many modules, a ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM), the encoder motor, or the dash switch. It’s best to have the vehicle properly diagnosed to pinpoint the exact cause.