Is Your GM Truck or Van Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, power windows that have a mind of their own, intermittent door lock failures, or a battery that dies overnight for no apparent reason, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and hard-to-diagnose issues. Stop throwing money at new batteries and get to the root of the problem.
“A customer’s 2005 Silverado 2500 came into my shop last month with these exact symptoms. He’d already replaced the battery twice, convinced it was a charging issue. After a quick parasitic draw test, we traced the power drain directly to the BCM. A faulty internal relay was staying active even with the key off. This is a classic failure I’ve diagnosed on hundreds of these 2003-2007 GM trucks and vans.”
The Direct Solution: A VIN-Programmed BCM
Forget the expensive trip to the dealership and the hassle of getting a blank module programmed. We take care of the hard part for you. Simply provide your vehicle’s VIN at checkout, and we will flash this GM Truck Body Control Module with the latest, most stable software directly from GM. It arrives at your door ready for installation, saving you time, money, and headaches.
- ✔ Fixes Common Electrical Failures: Solves issues with power windows, door locks, interior/exterior lighting, and radio operation.
- ✔ Eliminates Parasitic Battery Drain: Cures the frustrating “dead battery” problem caused by a faulty BCM.
- ✔ VIN-Programmed for Your Vehicle: Arrives with the correct software and calibration for your specific truck or van. No dealer flashing required.
- ✔ Restores Full Functionality: Get all your vehicle’s convenience features working reliably again.
- ✔ Direct-Fit Replacement: Guaranteed to interchange with part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Simple Installation Guide
Installing your new BCM is a straightforward process. For trucks like the Silverado and Sierra, you’ll find it under the steering column. For vans like the Express and Savana, it’s located in the center of the dash.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Access the Module: Remove any lower dash panels or trim necessary to gain clear access to the old BCM.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors.
- Reconnect Power: Re-attach the negative battery terminal.
Expert Pro Tip: Check for Water Intrusion
Before installing your new GM Truck Body Control Module, take a moment to inspect the area for any signs of moisture or corrosion, especially around the windshield seal on trucks. Water damage from a leaking seal is a leading cause of premature BCM failure. Replacing the module without fixing the leak will only lead to the same problem down the road.
Crucial Post-Installation Procedures
After installing your new BCM, a few final steps are required to ensure all vehicle systems communicate correctly. These procedures require a professional-grade diagnostic scan tool.
- Airbag System Reset: The airbag warning light will be on. You must perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the BCM with the airbag system and turn off the light.
- Brake Pedal Position Sensor Relearn: Some vehicles may require a brake pedal position sensor relearn or recalibration. This is critical for proper brake light operation and stability control functionality.
Note: If you are not comfortable performing these steps, we strongly recommend seeking assistance from a qualified technician.