Tired of Chasing Electrical Gremlins in Your GM Truck or Van?
As a technician with over two decades of experience, I’ve seen it all. A customer comes in with a 2005 Silverado, and the dashboard is lit up like a Christmas tree. The power windows work one minute and not the next, the radio presets are gone, and the security light is flashing, preventing the truck from starting. These aren’t separate problems; they’re classic symptoms of a failing Body Control Module (BCM). Your BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it fails, it can cause a cascade of frustrating, hard-to-diagnose issues.
Stop throwing parts at the problem. This replacement Body Control Module, part number 15167329, is the definitive solution. The best part? We take the biggest headache out of the repair. Simply provide us with your vehicle’s VIN at checkout, and we will program the module with the latest GM software specifically for your truck or van before it even leaves our facility. This means no expensive trips to the dealership for programming. It arrives at your door ready for installation, saving you significant time and money.
A Technician’s Notebook
A customer brought in his 2006 Sierra 2500, a work truck he depends on daily. The complaint was intermittent no-start and the security light was always on. He’d already replaced the battery and ignition switch based on advice from a forum. After a quick scan, I saw multiple communication loss codes with the BCM. Instead of a complex wiring issue, my experience pointed straight to the module itself. These BCMs, especially in work trucks that see a lot of vibration and use, can develop internal solder joint failures. We installed one of our pre-programmed modules, performed the quick security relearn, and he was back on the road in under an hour. It’s a common failure, and this part is the reliable fix.
Is Your Truck or Van Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs replacement:
- ✔ Erratic power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft system light is on, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or at the wrong speed.
- ✔ False warnings on the driver information center (e.g., “Door Ajar”).
- ✔ Communication errors with a professional scan tool (U-codes).
The Power of a Pre-Programmed 2003-2007 GM BCM
Replacing a modern vehicle computer isn’t just a mechanical swap. This isn’t like changing an alternator. The BCM must be electronically matched to your specific vehicle’s options and security system. Our VIN programming service handles this critical step for you. We load the correct software and key security data, ensuring that when you install the part, it communicates correctly with the Powertrain Control Module (PCM), anti-lock brake system, and other vehicle computers. This is the key to a successful and lasting repair.
A Straightforward Guide to Your BCM Installation
While some final steps require a diagnostic tool, the physical swap is very manageable for a DIY enthusiast. Always prioritize safety.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Locate the BCM: On most Silverado, Sierra, and SSR models, the BCM is located under the driver’s side of the steering column, often attached to a metal bracket. On Express and Savana vans, it’s typically found behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. These usually pop off or are held by a few screws.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly until they click into place.
- Final Steps (Crucial): Reconnect the battery. The vehicle may not start immediately due to the security system. You will need a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear any airbag faults. Additionally, a brake pedal position sensor relearn may be required. If you are not equipped to perform these steps, a local repair shop can complete them for you.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models, but please check your specific options:
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic): Fits most configurations except Crew Cab models. Please verify location (under steering column) and transmission options as listed in the full fitment chart.
- Chevrolet Express & GMC Savana 1500/2500/3500 (2003-2007): Fits models located in the center dash, typically without the commercial tradesman package.
- Chevrolet SSR (2003-2006): Direct fit for all models.
This is a reliable solution for your 2003-2007 GM BCM needs, getting your vehicle’s electronics back to factory-perfect operation.
Frequently Asked Questions
Do I need to do anything after I install this BCM?
Yes. While we program it to your VIN, two critical procedures must be performed after installation: an airbag system check (‘Setup SDM Primary Key in BCM’) and potentially a brake pedal position relearn. These require a professional bidirectional scan tool.
Will this fix my truck’s no-start problem?
If your no-start issue is caused by the security system (Passlock/VATS) being triggered by a faulty BCM, then yes, this part will resolve the problem once the security relearn procedure is completed.
What is the difference between a BCM and an ECM/PCM?
The BCM (Body Control Module) manages body electronics like lights, windows, and security. The ECM/PCM (Engine/Powertrain Control Module) controls engine and transmission functions. They are separate computers that communicate with each other.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information.
Is this a new or used part?
This is a high-quality, tested, and guaranteed functional replacement part that has been expertly programmed with the latest GM software for your vehicle.