Is Your GM Truck Plagued by Bizarre Electrical Problems?
If you’re dealing with flickering lights, power windows with a mind of their own, or a security system that randomly acts up, you’re likely facing a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable issues. This isn’t just an annoyance; it can affect the safety and reliability of your vehicle. Get back in control with our direct-fit, VIN-programmed BCM, part number 15107479.
From the Diagnostic Bay
We had a 2007 Silverado 2500 HD Classic in the shop that was driving its owner crazy. The dome lights would stay on, the driver’s power window worked only when it wanted to, and the horn would chirp randomly when locking the doors. The owner had already replaced the window switch and checked fuses to no avail. After hooking up our diagnostic tool, we saw multiple communication errors pointing to a single source. A faulty BCM was corrupting data on the network. We installed a VIN-programmed module, and instantly, all the strange electrical gremlins vanished. It’s a common failure point that can mimic a dozen other problems.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning windshield wipers or washers.
- ✔ Security system faults or the vehicle not starting due to security lock-out.
- ✔ Inaccurate gauge readings or warning lights on the dash.
- ✔ Problems with the radio or climate control systems.
The Plug-and-Play Solution for Your 2006-2007 Silverado BCM
Don’t waste time and money at the dealership. We provide a straightforward solution. This BCM is not a generic, off-the-shelf part. We flash it with the latest official GM software updates and program it specifically to your truck’s Vehicle Identification Number (VIN) before it ships. This critical step ensures that the module communicates correctly with all other systems in your vehicle, preserving all your original features and options. For many owners, this makes installation a simple plug-and-play process, getting you back on the road without a costly trip to the dealer for programming.
Installation and Post-Install Procedures
The BCM is typically located under the steering column on the driver’s side. While the physical swap is straightforward, please be aware of a few potential post-installation steps:
- 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. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation process.
Frequently Asked Questions
Do I need to program this BCM?
No. This Body Control Module comes pre-programmed to your vehicle’s specific VIN. Simply provide your VIN after purchase, and we will handle all the programming before shipping the part to you.
What does a BCM do on a 2006-2007 Silverado or Sierra?
The BCM acts as the brain for your truck’s body electronics. It controls features like power windows, door locks, interior and exterior lighting, the security system, wipers, and more.
Where is the BCM located on my truck?
The BCM is located under the driver’s side dashboard, typically near the steering column.
What if my airbag light is on after I install the new BCM?
If the airbag light comes on, the BCM needs to be synchronized with the airbag system’s SDM module. This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship the module until we have this information to program it correctly for your truck.