Are you battling frustrating electrical issues in your GM truck or SUV? A faulty Body Control Module (BCM) is often the hidden culprit behind problems like erratic lights, non-working power windows, and mysterious warning lights on your dash. This OEM-quality Body Control Module, interchangeable with part number 15064149, is the definitive solution for restoring full electronic functionality to your vehicle. It arrives pre-programmed to your specific Vehicle Identification Number (VIN), eliminating the need for expensive dealership programming and ensuring a simple, plug-and-play installation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors that stop working intermittently or completely.
- ✔ HVAC system failure, including an unresponsive blower motor or climate controls.
- ✔ An active airbag warning light, often accompanied by diagnostic trouble code B1001.
- ✔ Security system malfunctions that can lead to a no-start condition.
- ✔ Unexplained battery drain or grounding issues.
Why Choose Our 2003-2007 Sierra 2500 BCM?
This isn’t just a replacement part; it’s a complete, hassle-free solution. The core of its value lies in the VIN-specific programming performed before it ships. We load the latest GM software updates onto the module using your vehicle’s VIN. This ensures that the BCM communicates flawlessly with your truck’s other electronic systems, such as the Engine Control Module (ECM) and Supplemental Inflatable Restraint (SIR) module, right out of the box. This direct-fit 2003-2007 Sierra 2500 BCM is the reliable fix you need to get your truck back to 100%.
Installation is straightforward for any DIY mechanic. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, unplug the connectors from your old module, remove it, and install the new one. While the unit is plug-and-play, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool if the airbag light remains on. This syncs the new BCM with the airbag system. Best of all, there is no core charge, so you can keep your old part without any extra hassle.
Frequently Asked Questions
What does a Body Control Module do on a GMC Sierra?
The BCM acts as the central computer for your truck’s body electronics. It controls non-engine related functions like power windows, door locks, the security system, interior/exterior lighting, wipers, and the HVAC system.
Is this BCM ready to install out of the box?
Yes! This module is pre-programmed to your vehicle’s VIN before shipping. This makes it a plug-and-play solution, requiring no additional programming from a dealership for most functions.
Where is the BCM located on a 2005 Sierra 2500?
On most 2003-2007 Sierra and Silverado models, the BCM is located under the driver’s side of the dashboard, typically attached to a bracket near the steering column.
Will this fix my airbag light?
A faulty BCM can cause the airbag light to illuminate. Replacing it often resolves the issue. However, if the light stays on after installation, a simple ‘SDM Key Relearn’ procedure may be needed with a compatible scan tool to sync the new BCM with the airbag system.
Do I need to send my old BCM back?
No, there is absolutely no core charge for this part. You can keep your old module without any penalty or extra steps.
What other part numbers is this compatible with?
This module is a direct replacement for a wide range of part numbers, including 15116066, 15136225, 15198116, 10383536, 15064149, and many others listed in the vehicle fitment data.