2008 – 2009 Hummer H2 Body Control Module 25910474 Programmed To Your VIN VIN BCM

Is Your HUMMER H2 Plagued by Electrical Gremlins?

As a technician with over 20 years in the bay, I’ve seen how a failing Body Control Module (BCM) can turn a rugged HUMMER H2 into a source of constant frustration. It’s the nerve center for your vehicle’s body electronics, and when it starts to go, the symptoms can be bizarre and misleading. You’re not just imagining things; your H2’s brain is struggling to communicate.

From the Shop Floor: A customer’s 2008 H2 came in last week with a laundry list of complaints: the radio would turn on and off by itself, the power locks worked intermittently, and the security light would stay on, sometimes preventing it from starting. He had already replaced the battery and checked the alternator. After a quick diagnostic scan, we confirmed communication errors with the BCM. We swapped it with a pre-programmed unit like this one, and every single issue vanished. It’s a common failure point I’ve diagnosed on hundreds of these GM platforms.

Stop Guessing and Start Fixing

This isn’t a generic, off-the-shelf part. This is a direct-fit Body Control Module for your 2008-2009 HUMMER H2 that we program to your vehicle’s specific VIN before it ships. This means no expensive trips to the dealer for programming. It arrives ready for installation, loaded with the latest GM software updates to ensure peak performance and reliability.

Common Symptoms of a Failing BCM:

• ✔ Erratic or non-functional power windows, door locks, and interior lights.
• ✔ The security system acting up, causing no-start conditions.
• ✔ Dashboard lights flickering or warning lights staying on for no reason.
• ✔ Horn honking unexpectedly or not working at all.
• ✔ HVAC (Air Conditioning/Heat) controls behaving unpredictably.
• ✔ Communication error codes stored when scanned with a diagnostic tool.

Simple Installation for Your 2008–2009 HUMMER H2 BCM

Getting your H2 back to normal is straightforward. The BCM is typically located on the left-hand (driver’s side) firewall. While professional installation is always recommended, a skilled DIYer can handle the job.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. Locate the BCM: On the 2008-2009 H2, find the module mounted to the LH firewall area, often behind the lower dash panel.
3. Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly to avoid damaging them. Then, unbolt the old module from its mounting bracket.
4. Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all electrical harnesses. You should hear a ‘click’ as they lock in.
5. Reconnect Battery: Reattach the negative battery terminal.
6. CRITICAL – Post-Installation Procedures: After installation, two key procedures must be performed with a professional-grade scan tool. This is NOT optional.
   1. Airbag System: You must perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the airbag warning light and ensure the system is operational.
   2. Brake System: Some vehicles require a ‘Brake Pedal Position Sensor Calibration’ to ensure proper brake light function and stability control performance.

Guaranteed Compatibility and Peace of Mind

This module is the correct service part for your vehicle and is a direct replacement for a wide range of original part numbers, ensuring a perfect match. Simply provide your VIN at checkout, and we’ll handle the rest.

This BCM, part 25910474, interchanges with 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, 25934762, 25934763, 95151084

This part will fit these makes and models with these options: