Is your 2003-2007 GM truck or van suffering from perplexing electrical issues? Intermittent power windows, erratic interior lights, or strange warning messages on your dash are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can cause a wide range of frustrating problems. This replacement Body Control Module, part number 15116065, is the definitive solution to restore full functionality and reliability to your vehicle.
We take the guesswork and hassle out of the repair process. Unlike a standard replacement part that would require a trip to the dealership for expensive programming, this BCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We flash it with the latest GM software updates, ensuring optimal performance and compatibility right out of the box. This plug-and-play solution gets you back on the road faster, saving you both time and money.
We recently had a 2005 Silverado 2500 in the shop with a laundry list of electrical gremlins. The dome lights wouldn’t turn off, the driver’s power window worked only when it wanted to, and the radio would randomly shut off. The owner had already replaced the battery and checked every fuse he could find. A quick scan with a professional tool revealed multiple communication codes all pointing back to a faulty BCM. Instead of a complex wiring chase, the fix was simple: installing a VIN-programmed BCM. Once installed, every single issue was resolved instantly. It’s a classic example of how a single failing module can make a perfectly good truck feel like it’s falling apart.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior dome lights or exterior parking lights staying on or not turning on.
- ✔ The security system light is illuminated, potentially causing a no-start condition.
- ✔ Erratic behavior from the radio, climate controls, or instrument cluster gauges.
- ✔ False warning messages appearing on the driver information center (e.g., “Service 4WD”).
- ✔ Horn not working or sounding at random times.
- ✔ Inconsistent remote keyless entry operation.
The Importance of a Programmed 2003-2007 Sierra BCM
In modern vehicles, the BCM doesn’t just operate components; it communicates with other critical modules like the Engine Control Module (ECM) and Transmission Control Module (TCM). Our professional programming service ensures that this replacement BCM is a perfect digital match for your truck. By providing us with your VIN during checkout, we configure the module with all the correct settings and options your vehicle was built with from the factory. This critical step prevents compatibility issues that can arise from installing a non-programmed or incorrectly programmed unit.
Installation and Post-Install Procedures
This BCM is typically located under the steering column on pickup models or in the center of the dash on van models. While the physical installation is a direct swap, some vehicles may require simple post-installation relearn procedures. These can include:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a professional scan tool to sync the modules.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. By ordering this pre-programmed 2003-2007 Sierra BCM, you are choosing the most reliable and efficient path to fixing your vehicle’s electrical problems.
Frequently Asked Questions
What is a BCM and what does it control?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories related to the vehicle’s body. This includes power windows, locks, mirrors, interior and exterior lighting, security systems, wipers, and more.
Do I need to take this part to a dealer for programming?
No. The main benefit of our service is that we program the BCM for you before we ship it. Simply provide your vehicle’s VIN when you place your order, and it will arrive ready for installation, saving you a trip to the dealership.
Where is the BCM located on my vehicle?
For most Sierra and Silverado pickups from this era, the BCM is located under the driver’s side of the dashboard, near the steering column. For Express and Savana vans, it is typically found behind the center dash panel.
What happens if I forget to provide my VIN?
Programming is essential for this part to function correctly. We cannot ship the module until we receive your VIN to ensure it is programmed specifically for your vehicle’s configuration. We will contact you if the VIN is not provided with the order.
Will this fix my airbag light?
A faulty BCM can sometimes cause an airbag light. However, if the light appears after installing the new module, it simply means the BCM and the airbag’s SDM module need to be synchronized. This is a common procedure called ‘Setup SDM Primary Key in BCM’ that can be performed with a compatible high-end scan tool.
Is there a core charge for this part?
No, there is no core charge for this BCM. You can keep your original module without needing to send it back to us.