Is Your GM Truck or Van Acting Possessed?
If you’re dealing with a frustrating mix of electrical gremlins in your 2003-2007 GM vehicle, you’re not alone. In my 20+ years as a technician, I’ve seen hundreds of Silverado, Sierra, and Savana models roll into the shop with symptoms that seem completely random: power windows with a mind of their own, interior lights that won’t turn off, a security light that flashes constantly, or a radio that cuts out intermittently. More often than not, the culprit is a failing Body Control Module (BCM).
The BCM is the central nervous system for your vehicle’s body electronics. When it starts to fail, it can cause a cascade of confusing and annoying problems. This isn’t just an inconvenience; it can affect vehicle security and functionality. This replacement GM BCM 15194169 is the definitive solution to restore order and get your truck or van operating as it should.
The Real-World Solution: VIN-Programmed and Ready to Install
What sets this module apart is our in-house programming service. Before we ship your part, we flash it with the latest official GM software, tailored specifically to your vehicle’s VIN. This means you can bypass the dealership entirely, saving you time and the significant cost of their programming fees. It arrives at your door ready for installation.
Expert Pro Tip: Check for Water Leaks First!
Before you install your new BCM, especially on the trucks, take a minute to inspect the driver-side A-pillar and the upper corner of the windshield for any signs of water intrusion. A common cause of BCM failure on these GMT800 platforms is a slow water leak that drips directly onto the module’s connectors, causing corrosion and short circuits. Sealing a small leak now can prevent you from having to do this job again in the future.
Common Symptoms of a Failing BCM:
- ✔ Erratic power windows, door locks, or mirrors
- ✔ Interior dome lights or dashboard lights staying on or not working
- ✔ Horn honking randomly or not working at all
- ✔ “Service 4WD” or other warning lights on with no mechanical fault
- ✔ Intermittent no-start condition or security system issues
- ✔ Radio or climate control display flickering or malfunctioning
Simple Installation to Get You Back on the Road
Replacing the BCM is a straightforward job for a confident DIYer. The location varies slightly by model:
- Silverado/Sierra Pickups: Typically located under the driver’s side of the dashboard, near the steering column.
- Express/Savana Vans: Usually found behind the center dash panel, accessible after removing trim pieces.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the BCM: Access the module based on your vehicle type as described above.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Final Procedures: Follow the critical post-installation steps outlined below.
CRITICAL: Post-Installation Procedures Required
To ensure full functionality and safety, two final steps are necessary after installation. These procedures require a professional-grade scan tool with bidirectional capabilities.
- Airbag System Reset: You MUST perform the ‘Setup SDM Primary Key in BCM’ procedure. This synchronizes the new BCM with the airbag system (Sensing and Diagnostic Module) and will clear the airbag warning light on your dash.
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated after BCM replacement. This ensures your brake lights and stability control systems function correctly.
Guaranteed Fitment for Your Vehicle
This module is a direct replacement for the following part numbers:
15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689
It is compatible with a wide range of 2003-2007 Chevrolet Silverado, Express, SSR, and GMC Sierra, Savana models. Please refer to the detailed fitment list to confirm compatibility with your specific year, model, and options.