Tired of Electrical Gremlins in Your GM Truck?
If you’re dealing with a 2003-2006 Chevrolet Avalanche 1500 where the power windows have a mind of their own, the A/C controls work intermittently, or the security light is causing a no-start condition, the Body Control Module (BCM) is the most likely culprit. As the central command center for your truck’s body electronics, a failing BCM can create a cascade of frustrating and hard-to-diagnose issues. This isn’t just an inconvenience; it can affect your vehicle’s safety and security.
This replacement Body Control Module, part number 10367690, is the definitive solution. We take the guesswork and dealership hassle out of the repair by pre-programming it to your vehicle’s specific VIN. This means it arrives ready for a true plug-and-play installation, restoring full functionality to your truck’s essential systems without needing a trip to the dealer for expensive programming. It’s the same reliable fix I’ve recommended to hundreds of customers over the years.
Case Study: The Ghost in the Machine
A customer brought in his ’05 Silverado with a laundry list of bizarre electrical problems: the radio would shut off, the dome light wouldn’t work, and his power locks were unresponsive. He’d already replaced the driver’s side door lock actuator and a few fuses with no luck. After connecting my scan tool, I saw a handful of communication codes pointing to the BCM. Instead of chasing individual symptoms, we replaced the BCM with a VIN-programmed unit. In under 10 minutes, every single one of his electrical issues was gone. It’s a classic example of how a single failing module can mimic multiple separate problems.
Is Your Avalanche Showing These Electrical Faults?
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ HVAC and climate control systems failing to operate or blowing air incorrectly.
- ✔ The security system preventing the vehicle from starting (PassLock issues).
- ✔ An illuminated airbag light, often with a B1001 diagnostic trouble code.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ Intermittent or non-functional windshield wipers.
A Straightforward Guide to BCM Replacement
- ✔ Safety First: Before you begin, disconnect the negative terminal from your vehicle’s battery and wait 5-10 minutes for the systems to fully discharge.
- ✔ Locate the BCM: On most 2003-2006 Avalanche 1500 models, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black plastic box with several large multi-pin connectors.
- ✔ Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have release tabs that need to be pressed. Unbolt or unclip the old module and remove it.
- ✔ Install the New BCM: Mount your new, VIN-programmed BCM in the same location. Securely plug in all the electrical connectors until they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all functions: windows, locks, lights, wipers, and HVAC to confirm the repair.
Post-Installation Note: In some cases, a professional scan tool may be needed for post-install procedures like the ‘Setup SDM Primary Key in BCM’ if the airbag light remains on, or a ‘Brake Pedal Position Relearn’. This is vehicle-dependent but straightforward for any qualified technician.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 10367690 and other interchangeable numbers like 15116066, 15136225, and 15198116. It is designed for a wide range of General Motors vehicles, including:
CHEVROLET SILVERADO 1500/2500/3500 PICKUP (2003-2007 Classic) – Body Control (BCM); (under steering column), Crew Cab
CHEVROLET SUBURBAN 1500/2500 (2003-2006) – Body Control (BCM); (under steering column)
CHEVROLET TAHOE (2003-2006) – Body Control (BCM); (under steering column)
GMC SIERRA 1500/2500/3500/DENALI PICKUP (2003-2007 Classic) – Body Control (BCM); (under steering column), Crew Cab
GMC YUKON & YUKON XL 1500/2500 (2003-2006) – Body Control (BCM); (under steering column)
CADILLAC ESCALADE, ESV, EXT (2003-2006) – Body Control (BCM); (under steering column)
HUMMER H2 (2003-2007) – Body Control (BCM); (LH dash)
CHEVROLET EXPRESS / GMC SAVANA VANS (2004-2007) – Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
Frequently Asked Questions
Do I need to program this BCM?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for installation, saving you a trip to the dealership.
What if my airbag light is on after installation?
This can happen occasionally. It means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). A mechanic with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for my old part?
No, there is no core charge. You can keep or dispose of your old module without the hassle of returning it.
How difficult is the installation?
For most DIYers with basic tools, the installation is straightforward and takes less than 15 minutes. The module is typically located under the driver’s side dashboard.
Will this fix my truck’s no-start problem?
If your no-start issue is caused by the factory security system (PassLock) being triggered by a faulty BCM, then yes, this new module will resolve the problem.