Restore Full Control to Your 2003-2007 Hummer H2
Are you battling bizarre electrical issues in your Hummer H2? Intermittent power windows, a climate control system that doesn’t respond, or a security system causing a frustrating no-start condition? These aren’t random glitches; they’re classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s body electronics, a faulty BCM can cause widespread and confusing problems. This replacement module, part number 15136877, is the definitive solution to restore your H2’s functionality and reliability.
Our unique Cloning Service makes this repair easier and more affordable than ever. Instead of paying for expensive dealership programming, you simply send us your original BCM. We expertly transfer all the critical, vehicle-specific data—including key information and security settings—to this replacement unit. The result is a truly plug-and-play module that is 100% matched to your vehicle, arriving ready for immediate installation.
The Expert’s Take on the 2003-2007 Hummer H2 BCM
In my 20+ years of automotive diagnostics, I’ve seen countless owners and even other shops get stumped by the symptoms of a bad BCM. They’ll replace window motors, check fuses, and chase ground wires for weeks, only to find the root cause was this single module. The BCM acts as the traffic cop for dozens of electronic signals. When it starts to fail, the signals get crossed, leading to the chaos you’re experiencing. Our cloning process ensures that the ‘new’ module speaks the exact same language as your H2’s other computers, preventing communication errors that are common with generic or incorrectly programmed parts.
A Technician’s Notebook
A customer brought in his 2006 Hummer H2 with a laundry list of complaints: the driver’s side power lock was inoperative, the HVAC blower motor would only work on high, and the airbag light was on. He was convinced he had multiple separate problems. We pulled the codes and saw a B1001 (Option Configuration Error) and several U-codes indicating loss of communication. This pointed directly to the BCM. Instead of a complex, multi-part repair, we installed a cloned BCM. Every single issue was resolved in one go. It’s a testament to how crucial a fully functional BCM is for these vehicles.
Is Your Hummer H2 Showing These Symptoms?
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or won’t turn on at all.
- ✔ HVAC and climate control systems that are inoperative or function incorrectly.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ Security system malfunctions, including random alarm activation or a no-start condition where the engine won’t crank.
- ✔ Intermittent operation of the windshield wipers.
A Straightforward Guide to Installation
With our cloning service, the physical installation is a simple swap that most DIYers can complete quickly. The module is typically located on the driver’s side, behind the lower dashboard panel.
- Step 1: Send Us Your Original Module. After purchase, you will ship your original BCM to us. This is required for our cloning service to transfer your vehicle’s unique data.
- Step 2: Disconnect the Battery. Before starting, always disconnect the negative battery terminal to prevent electrical shorts and help reset the vehicle’s systems.
- Step 3: Locate and Remove the Old BCM. Access the module behind the LH dash. Carefully disconnect the wiring harnesses and unbolt the module from its mounting bracket.
- Step 4: Install the Cloned BCM. Mount the new module and securely reconnect all wiring harnesses. They are color-coded and keyed to only fit one way.
- Step 5: Reconnect Battery & Test. Reconnect the battery terminal and start the vehicle. Test all functions like lights, locks, windows, and HVAC to confirm the repair.
- Step 6: Post-Installation Procedures. In some cases, a ‘Setup SDM Primary Key in BCM’ procedure may be needed with a professional scan tool if the airbag light remains on. A Brake Pedal Position relearn may also be required.
Will This Fit My Vehicle?
This Body Control Module is a direct-fit replacement for the following vehicles, ensuring seamless integration and performance. It is interchangeable with a wide range of part numbers, including 15116066, 15136225, 15198116, and others.
- HUMMER H2: 2003, 2004, 2005, 2006, 2007 (Located at LH dash)
- Also fits a wide array of 2002-2007 GM Trucks & SUVs including Cadillac Escalade, Chevrolet Avalanche, Silverado, Suburban, Tahoe, and GMC Sierra & Yukon models. Please verify your part number for an exact match.
Frequently Asked Questions
How does the cloning service work?
You send us your original Body Control Module. We use specialized equipment to read the unique programming and security data from your module and write it directly onto the replacement unit. This makes it an identical twin to your original, ensuring it works perfectly with your vehicle’s existing systems without any further programming.
Do I need to return my old BCM as a core?
No core charge is required. However, we do need your original module to perform the cloning service. Once the service is complete, we ship your original module back to you along with your newly programmed replacement unit.
Why is my airbag light on after installation?
This can happen if the BCM and the Sensing and Diagnostic Module (SDM, or airbag module) lose their sync. A simple ‘Setup SDM Primary Key in BCM’ procedure performed with a bi-directional scan tool will resolve this and turn off the light. This is a common step in this repair.
Can a bad BCM prevent my Hummer from starting?
Absolutely. The BCM is a key part of the Passlock/Passkey vehicle security system. If it fails, it can prevent the engine from cranking, mimicking a bad starter or battery. A new, correctly programmed BCM will restore the security handshake and resolve this no-start condition.
Are any other part numbers compatible?
Yes, this module is a direct replacement for several part numbers, including 10383536, 15116066, 15136225, 15137393, 15198116, 15257043, and more. Matching your part number is the best way to guarantee compatibility.