Are you battling frustrating electrical gremlins in your GM truck or van? Flickering lights, malfunctioning power windows, a security system that acts up, or a mysterious battery drain can often be traced back to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing and unpredictable issues. This replacement Body Control Module, part number 15194169, is the definitive solution to restore your vehicle’s electronic functions and get you back on the road with confidence.
This isn’t just a generic part off the shelf. We provide a fully plug-and-play solution by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures compatibility with your truck’s existing systems and options, loading the latest software updates from GM. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ A persistent battery drain that kills your battery overnight.
- ✔ Warning lights on the dash, such as the airbag or brake light, without a clear cause.
- ✔ Inability for diagnostic scan tools to communicate with the module.
- ✔ Horn honking unexpectedly or not working at all.
Solving Problems with a Programmed Sierra 2500 BCM
A faulty Sierra 2500 BCM can make your reliable truck feel untrustworthy. By replacing it with our pre-programmed unit, you are installing a component that is ready to integrate seamlessly. The module is located under the steering column on most trucks or in the center dash on vans, making it accessible for a straightforward replacement. Once installed, most functions are immediately restored. In some cases, minor relearn procedures may be required.
Post-Installation Procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light operation and traction control function, a brake pedal position sensor recalibration may be necessary on certain models.
This module is a direct replacement for a range of part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689, ensuring wide compatibility across many GM models.
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.
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 a dead battery. A diagnostic scan showing communication codes with the BCM is a strong indicator.
Is this BCM difficult to install?
For most DIY mechanics, the installation is straightforward. The BCM is typically located under the driver’s side dashboard. The main challenge is accessing it. Since our modules come pre-programmed, no special computer work is needed from you, though some minor relearn procedures may be required post-installation.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options (like keyless entry, power seats, etc.). This ensures it works correctly right out of the box.
What if my airbag light is on after installation?
This is a known possibility. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a repair shop with a compatible high-level scan tool.
Is there a core charge for this part?
No, there is no core charge. You can keep your old BCM.