Are you battling strange and frustrating electrical problems in your GM truck or van? Intermittent power windows, flickering lights, a security system that acts up, or even a no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). The BCM is the central hub for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing symptoms. This isn’t just an inconvenience; it can affect the safety and reliability of your vehicle.
We offer a straightforward and reliable solution. This is a direct-fit Body Control Module, compatible with part number 15136224 and others, for a wide range of 2003-2007 GM vehicles including the Silverado, Sierra, Express, and Savana. The best part? We program it to your vehicle’s specific VIN before it ships. This means it arrives ready for installation, loaded with the latest software updates from GM, eliminating the need for an expensive trip to the dealership for programming.
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights would stay on, the radio would randomly shut off, and the power locks worked only when they wanted to. The owner had already replaced the battery and checked all the fuses. After connecting our scan tool, we saw multiple communication errors pointing towards the BCM. Instead of a costly diagnostic and programming session at a dealer, we installed one of our VIN-programmed modules. The installation took less than an hour, and instantly, all the electrical gremlins were gone. It’s a perfect example of how a targeted GM BCM Replacement can save significant time and money.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system light flashing, or the vehicle failing to start due to a security fault.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or at the wrong speed.
- ✔ Warning lights on the dashboard with no apparent cause.
Why Choose Our Programmed GM BCM Replacement?
This module is the ideal fix for your 2003-2007 GM truck or van. We handle the complex part—the programming—so you can focus on the simple installation. Just provide your VIN during checkout, and our technicians will flash the module with the correct software and latest updates for your specific vehicle configuration. This ensures seamless integration and proper function of all your vehicle’s features. This unit is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require a simple relearn procedure to sync all systems perfectly. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on 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 some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to satisfy the traction control system.
Always consult a factory service manual or a qualified technician if you are unsure about any step of the installation or post-installation process.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide variety of non-engine-related functions. This includes power windows, locks, lights, wipers, the security system, and more. It acts as the central command for your vehicle’s body electronics.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once, such as flickering lights, malfunctioning power accessories, and security system faults. A diagnostic scan by a professional technician can confirm if the BCM is the source of the errors.
Is this a difficult part to install?
For most DIY mechanics, the physical installation is straightforward. The BCM is typically located under the steering column or in the center dash area. Since we pre-program the module to your VIN, you avoid the most difficult step, which is the software flashing.
What information do you need from me?
After you place your order, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is crucial for us to program the BCM with the correct software for your specific model and options.
Will I need to do anything after installing the new BCM?
In some cases, yes. As noted, you may need to perform an Airbag System Sync or a Brake Pedal Position Relearn procedure if you experience related warning lights after installation. These procedures typically require a professional-grade scan tool.