Are you tired of chasing electrical gremlins in your Hummer H2? Flickering lights, a dead instrument cluster, or power windows with a mind of their own are classic signs of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a dependable truck into a source of constant frustration. The BCM is the electronic brain for your vehicle’s body accessories, and when it fails, it can cause a cascade of confusing problems. This is the definitive solution to restore order and reliability to your vehicle.
This OEM-quality replacement Body Control Module, compatible with part number 15064149, is the exact fix for your 2003-2007 Hummer H2 BCM issues. We take the guesswork and high cost out of the repair by pre-programming the module to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming—it arrives at your door ready for a simple, plug-and-play installation. Get your H2’s accessories, from the HVAC blower to the door locks, working precisely as they should.
Case Study: The Hummer That Wouldn’t Behave
A customer brought in a 2006 H2 with a frustrating mix of symptoms: the radio would cut out, the security light was on, and sometimes it wouldn’t start at all. They had already replaced the battery and checked the main grounds. After hooking up my scan tool, I saw a dozen communication codes pointing in different directions. In my shop, I’ve diagnosed hundreds of these GM trucks, and this pattern almost always leads back to one culprit. The BCM was failing internally, corrupting the data network. We installed a VIN-programmed BCM, and within 10 minutes, every single issue was resolved. The customer was thrilled to have their truck back without a week of costly diagnostic labor.
Is Your Hummer H2 Showing These Electrical Gremlins?
- ✔ Non-responsive or erratic power windows, door locks, or interior lighting.
- ✔ HVAC controls not working or blower motor stuck on one speed.
- ✔ The security system acting up, causing a no-start condition or random alarms.
- ✔ An airbag warning light on the dash, often with a DTC like B1001 (Option Configuration Error).
- ✔ A cluster of seemingly unrelated diagnostic trouble codes (DTCs) that won’t clear.
- ✔ Intermittent failure of wipers or exterior lights.
DIY Installation: A 5-Minute Fix
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- ✔ Locate the Module: On the 2003-2007 Hummer H2, the BCM is located on the left-hand (driver’s) side of the dash, typically under the steering column area.
- ✔ Swap the Part: Carefully unplug the electrical connectors from the old BCM. The connectors are keyed and will only fit one way. Remove the old module and secure the new one in its place.
- ✔ Connect and Test: Plug the connectors firmly into your new, pre-programmed BCM. Reconnect the battery terminal. Start the vehicle and test all functions—lights, windows, locks, wipers, and HVAC—to confirm the repair.
Post-Installation Note: In some cases, an airbag light may remain on after installation. This requires a simple “Setup SDM Primary Key in BCM” procedure with a compatible high-end scan tool to sync the airbag system. This is a common step when replacing a BCM on these GM platforms.
Verified Fitment for Your Hummer H2
This Body Control Module is a guaranteed fit for the following models. Please verify your vehicle is on the list to ensure compatibility.
- HUMMER H2 2003: Body Control (BCM); ID 8116
- HUMMER H2 2004-2007: Body Control (BCM); (LH dash)
This module also interchanges with a wide range of other GM part numbers, including: 10383536, 15116066, 15136225, 15198116, and more, making it a versatile solution for many GM trucks and SUVs of the era.
What does the BCM do on my 2003-2007 Hummer H2?
The Body Control Module (BCM) acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like your power windows, door locks, security system, interior and exterior lights, wipers, and HVAC system. When it fails, you experience the strange electrical issues this part is designed to fix.
Is this module truly plug-and-play?
Yes. We program the module with your vehicle’s VIN before shipping. This ensures it communicates correctly with the other modules on your H2 right out of the box, saving you from a costly and time-consuming trip to the dealership for programming.
Why is my airbag light on after installing the new BCM?
This is a normal security feature on GM vehicles. If the airbag light is on, the BCM needs to be synced with the Sensing and Diagnostic Module (SDM). This is done with a ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade scan tool. Many independent repair shops can perform this service quickly.
Do I need to send my old part back for a core charge?
No, there is no core charge for this part. You can keep your old module, which simplifies the process and gets your vehicle back on the road faster without worrying about returns.