Restore Full Functionality to Your GM Truck or Van
Are you chasing down frustrating electrical gremlins in your Silverado, Sierra, or Express van? Intermittent power windows, flickering dash lights, a security system that acts up, or power locks with a mind of their own are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of confusing and unpredictable problems. I’ve seen it hundreds of times in the shop: a perfectly good truck or van is sidelined by what seems like a major electrical failure, when the real culprit is this single component.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a reliable BCM and flash it with the very latest GM-approved software, specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures all your vehicle’s options work correctly right out of the box, saving you an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and we handle the rest. This is the most effective way to solve these issues and get your vehicle back to 100%.
A Technician’s Notebook: The 2005 Sierra Mystery
A customer brought in a 2005 Sierra 2500 that was driving him crazy. The radio would turn on and off by itself, the driver’s side power window wouldn’t work, and the security light was always on, sometimes causing a no-start. He’d already replaced the battery and the window switch with no luck. After connecting my scan tool, I saw a slew of ‘U’ codes—communication errors between modules. This is a tell-tale sign. Instead of chasing individual components, I went straight for the BCM. Water intrusion from a leaky windshield seal had caused corrosion on the BCM pins. We installed a VIN-programmed BCM like this one, and every single issue was resolved instantly. It’s a classic failure pattern for these workhorse trucks.
Is Your GM Truck or Van Showing These Signs?
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system light is illuminated, and the vehicle may not start.
- ✔ Wipers operate intermittently or at the wrong speed.
- ✔ The horn honks unexpectedly or doesn’t work.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors (U-codes) are present.
- ✔ Inconsistent A/C compressor clutch engagement.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a DIYer with basic tools. The most important part is our pre-programming service, which eliminates the need for advanced scan tools for the initial setup.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On most Silverado and Sierra pickups, 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 and Replace: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the old BCM and remove it. Install the new, pre-programmed module in its place.
- Reconnect: Securely plug all electrical connectors back into the new BCM. You should hear a ‘click’ as they lock in place. Reconnect the negative battery terminal.
- Post-Install Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Please see the notes below regarding potential relearn procedures that may be required for your specific vehicle.
Important Post-Installation Notes
While our VIN programming handles the primary setup, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. Depending on your model and options, you may encounter the following:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light and traction control operation.
Disclaimer: Vehicle systems vary. For procedures specific to your truck or van, always consult a factory service manual or a qualified technician.
Verified Fitment for Your Vehicle
This BCM is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is compatible with the following GM models:
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2006): Body Control Module located under the steering column, excluding Crew Cab models.
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2007 Classic): For ‘Classic’ style with creased door skin. Module located under the steering column, excluding Crew Cab models. Fits various automatic (4-speed MT1) and manual transmission configurations.
- Chevrolet Express & GMC Savana 1500/2500/3500 (2003): Body Control Module located in the center dash.
- Chevrolet Express & GMC Savana 1500/2500/3500 (2004-2007): Body Control Module in the center dash, for models without the commercial tradesman package.
- Chevrolet SSR (2003-2006): Body Control Module.
Best of all, there is no core charge. You don’t need to send your old, faulty module back to us. Keep it, recycle it, or discard it—the choice is yours.
Frequently Asked Questions
Why do I need to provide my VIN?
Your VIN allows us to program the BCM with the exact software and settings your vehicle had from the factory. This ensures all features, from power windows to keyless entry, work correctly without requiring a trip to the dealer for expensive programming.
Is this a difficult part to install myself?
For someone with basic mechanical skills, this is a very manageable installation. The module is typically held in by a few bolts or clips and has several plug-in connectors. Since we pre-program it, the most complex part of the job is already done for you.
What does ‘No Core Charge’ mean?
It means you don’t have to pay an extra deposit and go through the hassle of sending your old, broken part back to us. The price you see is the final price.
Will this fix my ‘Service 4WD’ light?
While the BCM communicates with many systems, 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 get a proper diagnosis with a scan tool to confirm the source of the fault.
What if my airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system’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.