Are you battling bizarre electrical issues in your 2008-2009 Hummer H2? From flickering lights and unresponsive power windows to a security system that has a mind of its own, a failing Body Control Module (BCM) is often the culprit. The BCM acts as the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating and seemingly unrelated problems. This replacement Body Control Module is the definitive solution to restore your H2’s electronic functions to factory-perfect operation.
We take the guesswork and hassle out of the repair. Simply provide your vehicle’s VIN during checkout, and we will program the module with the latest official GM software specifically for your H2. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming. It’s a direct-fit replacement designed to get you back on the road with confidence.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ The security system or keyless entry failing to work correctly.
- ✔ Warning lights on the dash, such as the airbag or service vehicle light, without an obvious cause.
- ✔ Communication loss with other vehicle modules, which can be seen on a professional scan tool.
- ✔ Wipers or radio malfunctioning unexpectedly.
Why Choose Our Programmed 2008-2009 Hummer H2 BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. By matching the software to your VIN, we ensure all factory-installed options on your vehicle are recognized and controlled correctly. This module is a direct replacement for a wide range of GM part numbers, including 15921352, 25892622, 20815898, and many more, ensuring broad compatibility. With no core charge, you can keep your original part without the hassle of shipping it back.
Installation and Post-Install Notes
The BCM on the 2008-2009 Hummer H2 is located on the left-hand (driver’s side) firewall. While installation is straightforward for those with mechanical experience, please be aware of potential post-installation procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper function of the brake lights and stability control systems.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Compatible Part Numbers:
10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Frequently Asked Questions
What does the Body Control Module do on my Hummer H2?
The BCM is a computer that manages and controls many of your H2’s non-engine related electronic systems. This includes power windows, door locks, the security system, interior and exterior lighting, wipers, and more.
Is this BCM difficult to install?
For someone with basic mechanical skills, the physical replacement is straightforward. The module is typically located on the driver’s side firewall. Because our module comes pre-programmed to your VIN, it eliminates the most difficult step, which is software flashing.
Do I need to send my old BCM back?
No. This product has no core charge, so you are not required to return your original module.
What happens if my airbag light is on after installation?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A professional technician with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
How do I provide my VIN for programming?
After you complete your purchase, we will contact you for your vehicle’s 17-digit VIN. We cannot program and ship the module without it, so please ensure your contact information is accurate.