Tired of Chasing Electrical Gremlins in Your GM Truck?
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable truck into a source of constant frustration. One day the power windows work, the next they don’t. The security light flashes for no reason, or worse, your truck won’t start at all. These aren’t random issues; they’re classic signs that the central command center for your vehicle’s body electronics is failing. This isn’t just an inconvenience—it can be a serious safety concern when lights or wipers fail unexpectedly.
This is the definitive solution for your 2003-2007 Sierra 3500 BCM and a wide range of other GM vehicles. We take an OEM-quality module, part number 10367690, and professionally program it to your vehicle’s specific VIN. This means it arrives at your door ready for a true plug-and-play installation, saving you a costly trip to the dealership and hours of diagnostic headaches. Restore full, reliable control over your truck’s essential features and get back on the road with confidence.
From the Diagnostic Bay: The BCM vs. Bad Grounding
I once had a 2005 Silverado 2500 in my shop with a baffling array of symptoms: flickering dash lights, intermittent radio, and a random airbag light. The owner had already replaced the battery and checked all the main grounds he could find. While bad grounds are a common culprit on these trucks, a scan tool revealed communication loss codes with multiple modules, all pointing back to the BCM. A failing BCM can mimic grounding issues perfectly. After installing a VIN-programmed module like this one, all the ‘ghost’ problems vanished instantly. It’s a 10-minute fix for what can seem like a month-long problem.
Is Your Truck Showing These Symptoms?
- ✔ The HVAC blower motor works intermittently or not at all.
- ✔ Your power windows, door locks, or interior/exterior lights are behaving erratically.
- ✔ The airbag warning light is on, often with a DTC like B1001 (Option Configuration Error).
- ✔ You’re experiencing a no-start condition due to a security system fault.
- ✔ The instrument cluster displays strange warnings or loses power.
- ✔ Your scan tool shows multiple communication codes pointing to the BCM.
A Straightforward Guide to Installation
- ✔ Safety First: Before you begin, disconnect the negative terminal on your truck’s battery to prevent any electrical shorts and help reset the system.
- ✔ Locate the BCM: On most trucks like the Sierra and Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s typically behind the center dash panel.
- ✔ Unplug and Remove: Carefully disconnect the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the old module and remove it.
- ✔ Install the New Module: Seat the new, pre-programmed BCM in place and securely plug in all the connectors. You should hear a ‘click’ as they lock.
- ✔ Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all functions: lights, windows, locks, wipers, and the HVAC system.
- ✔ Post-Installation Checks: In some cases, a ‘Setup SDM Primary Key in BCM’ procedure may be needed with a scan tool if the airbag light remains on. Similarly, a Brake Pedal Position relearn might be required. These are simple procedures for any professional shop if needed.
Verified Vehicle Compatibility
This module is a direct replacement for part number 10367690 and is interchangeable with 15116066, 15136225, 15198116, and others. It is guaranteed to fit the following models:
- Avalanche 1500/2500 (2002-2006)
- Silverado 1500/2500/3500 (2003-2007 Classic)
- Suburban 1500/2500 (2003-2006)
- Tahoe (2003-2006)
- Express 1500/2500/3500 Van (2004-2007)
- Sierra 1500/2500/3500 (2003-2007 Classic)
- Sierra Denali (2003-2007 Classic)
- Yukon & Yukon XL 1500/2500 (2003-2006)
- Savana 1500/2500/3500 Van (2004-2007)
- Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Do I need to have this BCM programmed by a dealer?
Do I need to have this BCM programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s VIN before shipping. It arrives ready to install, with no additional programming required, saving you time and money.
What does ‘plug-and-play’ actually mean?
It means the installation process is entirely physical. You simply unplug the old module and plug this one in. There are no computer or software steps needed for the module to function correctly with your truck’s existing options.
My airbag light is on. Will this fix it?
If the airbag light is caused by a faulty BCM (like DTC B1001), this part will resolve the root cause. However, after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the new BCM with the airbag system and clear the light.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old module or dispose of it without needing to send it back to us.
What if I’m not sure this is the right part?
Please verify the part number on your original module or contact us with your VIN. Our team of experts is happy to verify fitment to ensure you get the correct part for your 2003-2007 Sierra 3500 BCM or other GM vehicle.