Restore Full Electrical Function to Your HUMMER H2
Is your 2008 or 2009 HUMMER H2 experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are common indicators of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and difficult-to-diagnose issues. This replacement Body Control Module is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
From the Diagnostic Bay
We had a 2009 H2 come into the shop that the owner described as ‘haunted.’ The dome lights would stay on, the radio would randomly change stations, and the power locks would cycle while driving. After hours of chasing wires, we isolated the issue to an internally shorted BCM. Instead of a costly trip to the dealer for a new module and programming, the owner opted for one of our pre-programmed units. The installation took less than an hour, and all the ‘ghosts’ were gone. It’s a perfect example of how the right part can save significant time and diagnostic headaches.
Common Symptoms of a Failing H2 BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Intermittent issues with the radio or climate control system.
- ✔ False alarms from the vehicle’s security system.
- ✔ “Service Theft System” or other warning messages on the dash.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Battery drain when the vehicle is turned off.
Why Choose Our Pre-Programmed 2008-2009 HUMMER H2 BCM?
Getting your vehicle back on the road shouldn’t be complicated. We eliminate the need for expensive dealership programming by flashing this module with the latest GM software updates using your vehicle’s VIN. This ensures all factory-intended functions and communications work seamlessly upon installation. This is a direct-fit replacement for part number 15837419 and a wide range of other GM part numbers, making it a versatile and reliable fix.
Simple VIN Programming Process:
- ✔ Complete your purchase.
- ✔ Reply to our confirmation email or message us with your vehicle’s 17-digit VIN.
- ✔ Our technicians will program the module to match your H2’s exact configuration.
- ✔ We ship the ready-to-install module directly to you.
Important Post-Installation Information
While this module is designed for a simple installation, some vehicles may require additional steps to ensure all systems are synchronized. Please note the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light operation and to satisfy the traction control system.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation or post-installation process.
This module is a direct replacement for the following 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 (BCM) do?
The BCM acts as the brain for your vehicle’s electronic accessories. It controls functions like power windows, locks, interior/exterior lighting, the security system, and the wipers, ensuring everything works as intended.
Is this part difficult to install?
For the 2008-2009 HUMMER H2, the BCM is located on the left-hand (driver’s side) firewall. Installation is typically straightforward, involving disconnecting the battery, removing trim panels for access, and swapping the electrical connectors. However, professional installation is always recommended if you are not comfortable with automotive electrical work.
How do I provide my VIN for programming?
After you place your order, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN, as the programming is essential for the module to function in your vehicle.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
What if my airbag light is on after I install the new BCM?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag system (SDM). A mechanic with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this and turn off the light.