Is Your GM Truck or Van Acting Possessed?
If you’re dealing with a frustrating mix of electrical gremlins in your Silverado, Sierra, Express, or Savana, you’re not alone. Flickering dashboard lights, power windows with a mind of their own, a security system that randomly immobilizes your vehicle, or accessories that just won’t work—these are all classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to fail, it can cause chaos.
“A customer’s ’05 Silverado 2500 came in last week with these exact symptoms. The radio would cut out, the dome light wouldn’t turn off, and the key fob was useless. He’d spent a fortune chasing grounds and replacing switches. The real culprit was a faulty BCM. We swapped in one of our pre-programmed units, and in under an hour, every single issue was gone. It’s a common failure point I’ve seen hundreds of times on these workhorses.”
The Direct Solution: A Pre-Programmed GM BCM Replacement
Stop chasing ghosts in the machine. This BCM is the definitive solution, arriving at your door completely programmed to your vehicle’s specific VIN. We flash it with the latest GM software updates, ensuring it communicates flawlessly with your truck’s other modules right out of the box. This completely eliminates the need for an expensive trip to the dealership for programming.
Common Symptoms of a Failing BCM:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior.
- ✔ Security or anti-theft system malfunctions, preventing the engine from starting.
- ✔ Inoperative radio or climate controls.
- ✔ False warning lights on the instrument cluster.
- ✔ Rapid battery drain while the vehicle is off.
Simple Installation Guide
Installing your new BCM is straightforward for a DIYer with basic tools. The location varies slightly by model:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the BCM: On Silverado & Sierra pickups, it’s typically found under the driver’s side of the dashboard, near the steering column. On Express & Savana vans, it’s usually behind the center dash panel.
- Remove Connectors: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Take a moment to inspect the connector pins for any corrosion and clean them if necessary.
- Swap the Module: Unbolt or unclip the old BCM and remove it. Install the new module in its place.
- Reconnect Everything: Plug the electrical connectors firmly into your new BCM until they click. Reconnect the negative battery terminal.
CRITICAL: Post-Installation Procedures
After installing your new GM BCM replacement, a few final steps are required to synchronize it with your vehicle’s safety systems. These procedures require a professional-grade scan tool.
- Airbag System Sync: The ‘Setup SDM Primary Key in BCM’ procedure must be performed. This allows the new BCM to communicate with the airbag control module (SDM). Failing to do this will leave the airbag warning light illuminated.
- Brake System Check: Some vehicles may require a Brake Pedal Position Sensor recalibration. This ensures the BCM receives the correct input for brake light operation and other related systems.
If you are not equipped to perform these steps, we strongly recommend seeking assistance from a qualified technician.
Guaranteed Compatibility
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Please verify your part number and consult the fitment chart to ensure this is the correct part for your truck or van.