Is Your Express Van Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, a dead radio, power windows that have a mind of their own, or a security light that won’t turn off, you’re likely facing a failing Body Control Module (BCM). For a workhorse like the Chevy Express 1500, these aren’t just annoyances—they’re problems that can take your van off the road and cost you money. The BCM is the central command center for your van’s body electronics, and when it fails, it can cause a cascade of confusing and frustrating issues.
Expert Pro Tip: Don’t Mistake a Bad BCM for a Bad Battery. In my 20+ years as a diagnostician, I’ve seen hundreds of customers replace perfectly good batteries and alternators trying to solve BCM-related issues. A classic sign of a failing BCM is a wide array of unrelated electrical problems occurring at once. Before you start swapping charging system components, have a professional scan for communication codes (U-codes). These codes are a tell-tale sign that the modules aren’t talking to each other correctly, often pointing directly to the BCM as the culprit.
The Direct-Fit Solution: A VIN-Programmed BCM
Forget expensive dealership visits and the hassle of finding a shop that can program modules. This is a direct-fit replacement Express 1500 Body Control Module that arrives at your door pre-programmed for your specific vehicle. We use your Vehicle Identification Number (VIN) to load the latest GM software and vehicle-specific calibrations, making this a true plug-and-play solution.
Key Symptoms of a Failing BCM:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights flickering or staying on.
- ✔ The security system acting up or preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Communication error codes stored in the vehicle’s computer system.
- ✔ Unresponsive key fob or remote entry issues.
Simple Installation to Get You Back to Work
Installing your new Express 1500 Body Control Module is a straightforward process that a confident DIYer can handle. While the exact location can vary slightly across the wide range of compatible vehicles, on the 2008-2012 Express 1500, you’ll typically find it in the center dash area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: Access the BCM, usually located behind the center part of the dashboard. You may need to remove a few trim panels for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in place and securely reconnect all electrical connectors.
- Reconnect Power: Reattach the negative battery terminal.
CRITICAL: Post-Installation Procedures Required
After installing your new BCM, a few final steps are necessary to ensure all vehicle systems operate correctly and safely. These procedures require a professional-grade diagnostic scan tool.
- Airbag System Reset: To clear the airbag warning light, the ‘Setup SDM Primary Key in BCM’ procedure must be performed. This re-establishes communication between the new BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require a brake pedal position sensor recalibration. This ensures the brake lights and stability control systems function correctly with the new module.
Note: Failure to perform these steps can result in warning lights on the dash and compromised safety systems. If you are not equipped to perform these procedures, please seek assistance from a qualified professional technician.
Guaranteed Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Simply provide your VIN at checkout, and we’ll handle the programming. This module is compatible with the following part numbers and models:
Replaces Part Numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Fits Select Models Including: Acadia, Avalanche, Caprice, Captiva Sport, CTS, DTS, Enclave, Equinox, Escalade, Express 1500/2500/3500, G8, H2, Impala, Lucerne, Monte Carlo, Outlook, Savana 1500/2500/3500, SRX, STS, Suburban, Tahoe, Torrent, Traverse, Vue, Yukon, and more. Please verify the part number on your original module to ensure compatibility.