2008-2009 HUMMER H2 BCM Body Control Module 15837419 | Cloning Service

Restore Full Functionality to Your GM Vehicle’s Electronics

If you’re dealing with perplexing electrical issues in your 2008-2009 HUMMER H2 or another compatible GM vehicle, a failing Body Control Module (BCM) is often the culprit. As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. From power windows that won’t budge to security systems that act up, these symptoms point to a breakdown in communication between your vehicle’s components. This isn’t just an inconvenience; it can affect the safety and reliability of your truck. We offer a dependable, straightforward solution: a replacement BCM with a complete cloning service, programmed specifically to your vehicle’s VIN.

Is Your Vehicle Showing These Symptoms of BCM Failure?

A failing BCM can manifest in numerous ways. Over my 20+ years of experience, these are the most common signs I’ve seen. If your vehicle is experiencing any of these, it’s a strong indicator that your BCM needs attention.

• ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
• ✔ Interior or exterior lights flickering, staying on, or not working.
• ✔ The security system or keyless entry malfunctioning.
• ✔ The instrument cluster displaying incorrect information or warning lights (like the airbag light).
• ✔ Communication error codes stored, such as U0140 (Lost Communication With Body Control Module).
• ✔ Erratic behavior from the radio or climate control systems.
• ✔ The vehicle not starting due to a security system fault linked to the BCM.

Your Straightforward BCM Swap Guide

Installing your VIN-programmed BCM is a manageable job for a DIY enthusiast or a quick task for any professional mechanic. Since we handle the programming, you can avoid a costly trip to the dealership.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge before starting work.
2. Locate the BCM: On a 2008-2009 HUMMER H2, the Body Control Module is typically located on the driver’s side, attached to the firewall or under the dashboard. Consult your service manual for the exact position on other models.
3. Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location and securely fasten it. Reconnect all the electrical connectors, ensuring they click into place.
5. Reconnect Power: Reattach the negative battery terminal.
6. Perform Relearns (If Needed): Start the vehicle. In some cases, you may need to perform additional procedures like an Airbag System Sync or Brake Pedal Position Relearn as detailed below. This is often only necessary if specific warning lights appear.

Important Post-Installation Information

While our cloning service makes this a near plug-and-play repair, some GM vehicles require a final handshake between modules. Be aware of the following potential steps:

• Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
• Brake Pedal Position Relearn: On certain models, a brake pedal position sensor recalibration might be required to ensure your brake lights and traction control system function correctly.

Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified technician for procedures specific to your make and model.

Verified Compatibility for Your Vehicle

This BCM is a direct replacement for part number 15837419 and is compatible with a wide range of GM vehicles. Please verify your original part number or match your vehicle from the list below.

Frequently Asked Questions