Restore Your Hummer H2’s Electrical System with a Perfectly Cloned BCM
Are you chasing down bizarre electrical problems in your Hummer H2? One minute the power windows don’t work, the next the HVAC is dead, or you’re getting a random airbag light. These frustrating, seemingly unrelated issues often point to one central culprit: a failing Body Control Module (BCM). This module, part number 15137395, is the electronic brain for your vehicle’s body and cabin functions. When it falters, it can make your rugged H2 feel unreliable. Our solution provides a dependable, permanent fix.
We offer a professional Cloning Service with every purchase. Instead of just programming a new module with factory data, we transfer the exact configuration from your original BCM to this replacement unit. This process ensures 100% seamless integration with your vehicle’s specific options and security systems, eliminating the need for expensive dealership programming or complex relearn procedures. You get a true plug-and-play solution designed for your specific 2003-2007 Hummer H2 BCM needs.
From the Diagnostic Bay: The Case of the Haunted H2
A customer brought in a 2006 Hummer H2 with a list of complaints that sounded like a ghost was in the machine. The radio would turn on by itself, the door locks would cycle randomly while driving, and the security light would stay on, causing an intermittent no-start. He had already replaced the battery and checked all the main grounds. After hooking up my scanner, I saw a dozen communication codes pointing back to the BCM. Instead of a costly diagnostic rabbit hole, we installed a cloned BCM. All the phantom issues vanished instantly. This is a classic failure pattern I’ve seen on hundreds of these GM platforms.
Is Your Hummer H2 Showing These Electrical Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your Body Control Module is the source of the problem.
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ HVAC controls are unresponsive, or the blower motor works sporadically.
- ✔ Headlights, taillights, or interior dome lights flicker or fail to operate correctly.
- ✔ An airbag warning light is illuminated, often with a DTC like B1001 (Option Configuration Error).
- ✔ Your scanner shows multiple communication loss codes (U-codes) with other modules.
A Straightforward Guide to BCM Installation
For most DIYers and professional mechanics, this is a quick job. No special tools are needed, and the process typically takes less than 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On the 2003-2007 Hummer H2, the Body Control Module is located on the driver’s side, up under the dashboard to the left of the steering column.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, the module can be unclipped or unbolted from its mounting bracket.
- Install the New Module: Connect the electrical harnesses to your new, cloned BCM. Ensure each connector clicks securely into place. Mount it back into the original location.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be required if related warning lights appear. This is performed with a professional scan tool. Our cloning service minimizes the chance of this, but it can vary by vehicle. Always consult a service manual for detailed procedures.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15137395 and is interchangeable with many other GM part numbers. While it is a perfect fit for the 2003-2007 Hummer H2 BCM, it also fits a wide range of other GM trucks and SUVs, including:
- Cadillac Escalade, ESV, EXT (2003-2006)
- Chevrolet Avalanche 1500/2500 (2003-2006)
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic)
- Chevrolet Suburban & GMC Yukon XL (2003-2006)
- Chevrolet Tahoe & GMC Yukon (2003-2006)
- Chevrolet Express & GMC Savana Van (2004-2007, with specific options)
Frequently Asked Questions
What is a BCM cloning service?
Cloning is a service where we transfer the complete software and vehicle-specific data—including key information and security settings—from your old BCM to the replacement unit. This makes the new module an exact digital copy of the original, ensuring it works perfectly with your H2 without any additional programming.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, you must send us your original module after placing your order. We will clone the data onto the replacement unit and ship both modules back to you. This guarantees compatibility.
Will this fix my no-start problem?
If your no-start condition is caused by the BCM failing to recognize your key or activating the anti-theft system, then yes, this cloned module will resolve the issue. It restores the proper security handshake between the BCM and the rest of the vehicle.
What if the airbag light comes on after installation?
Occasionally, the new BCM may need to be synced with the airbag system (SDM). This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be done with a bi-directional scan tool. Our cloning service makes this rare, but it is a possibility.
Is there a core charge for my old part?
No, there is no core charge. However, we do require your original module to perform the cloning service. We will return your original BCM to you along with the newly programmed replacement.