Is your HUMMER H2 experiencing bizarre electrical problems? You’re not alone.
The Body Control Module, or BCM, is the central command center for your vehicle’s electronic accessories. When it starts to fail, it can cause a cascade of confusing and frustrating issues that can be difficult to diagnose. From flickering lights to a car that won’t start, a faulty BCM can bring your powerful H2 to a standstill. This replacement Body Control Module, part number 15948439, is the definitive solution to restore your vehicle’s functionality and peace of mind.
From the Diagnostic Bay
We had a 2008 HUMMER H2 come into the shop with a list of symptoms that seemed unrelated. The power locks worked intermittently, the radio would shut off randomly, and the security light was always on, sometimes preventing the truck from starting. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we saw multiple communication errors pointing to the BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our pre-programmed units. The new BCM resolved all the issues instantly, saving the customer hundreds of dollars and days of vehicle downtime.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not working at all).
- ✔ Malfunctioning security system or persistent anti-theft light.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Problems with the radio, climate control, or windshield wipers.
- ✔ A no-start condition where the engine cranks but won’t turn over due to a security fault.
Why Choose Our Pre-Programmed 2008-2009 HUMMER H2 BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost out of the repair process. Simply provide us with your vehicle’s VIN (Vehicle Identification Number) during checkout, and our technicians will program the module with the latest GM software specific to your 2008-2009 HUMMER H2. This ensures perfect compatibility and function right out of the box. No need for expensive dealership programming or specialized tools.
Simple Installation and Post-Install Notes:
Installation is straightforward for anyone with basic mechanical skills. Once installed, this module is designed to be plug-and-play. However, on some vehicles, a few simple relearn procedures may be necessary:
- Airbag System Sync: If your airbag warning light illuminates after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor might be required to ensure proper brake light and traction control operation.
- No Core Charge: You are not required to send your old module back. Keep your original part with no extra fees.
This module is a direct replacement for a wide range of GM part numbers, including: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084 and more.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors many of the electronic body accessories, such as power windows, locks, lights, wipers, and the security system.
Do I need to get this module programmed by a dealer?
No. We handle the programming for you before we ship the part. Just provide your vehicle’s VIN when you order, and it will arrive ready for installation.
Where is the BCM located on a 2008-2009 HUMMER H2?
On the 2008-2009 HUMMER H2, the Body Control Module is typically located on the left-hand (driver’s side) firewall, inside the cabin.
What if my airbag light is on after I install the BCM?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without any additional fees or the hassle of returning it.