Is your Chevy Express or GMC Savana van plagued by frustrating electrical problems? Flickering lights, malfunctioning power windows, a security system that acts up, or even a no-start condition 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 cascade of confusing and unpredictable issues. This VIN-programmed Body Control Module is the definitive solution to restore your van’s functionality and reliability.
We make the repair process simple. This isn’t just a generic part off a shelf; it’s a component specifically prepared for your vehicle. Upon purchase, you provide us with your van’s Vehicle Identification Number (VIN). Our technicians then flash the module with the latest GM-certified software updates, ensuring it communicates perfectly with your van’s specific systems right out of the box. This eliminates the need for expensive dealership programming and gets you back to work faster.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry fails intermittently.
- ✔ The instrument cluster displays incorrect information or warning lights (like the airbag light).
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ The vehicle won’t start, but the battery and starter are good.
- ✔ Communication errors with other vehicle modules (DTC U-codes).
Installation and Post-Install Notes
Replacing the BCM is typically a straightforward process, as it is located in the center dash area on Express and Savana vans. However, after installation, some vehicles may require additional steps to ensure all systems are synchronized. A ‘Setup SDM Primary Key in BCM’ procedure might be needed if the airbag light is on. Similarly, a ‘Brake Pedal Position Relearn’ may be necessary. These procedures can be performed by a qualified technician with a professional-grade scan tool. Always consult a factory service manual for detailed instructions specific to your vehicle.
This module is a direct replacement for the following 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
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM acts as the main computer for your vehicle’s comfort and convenience features. It controls power windows, locks, lights, wipers, the security system, and many other electronic functions that aren’t directly related to the engine.
How do I provide my VIN for programming?
After you complete your purchase, we will contact you for your vehicle’s 17-digit VIN. You can also add it to the notes section during checkout. We cannot ship the module until we have programmed it with your specific VIN.
Is this part difficult to install myself?
For someone with moderate mechanical skill, the physical replacement is straightforward. The BCM is usually located under the dash. The main challenge can be the post-installation relearn procedures, which may require a professional scan tool.
Will this fix my airbag light?
A faulty BCM can cause the airbag light to illuminate. While this new module will resolve the BCM-related fault, you may need a technician to perform an ‘Airbag System Sync’ or ‘Setup SDM Primary Key’ procedure to clear the light after installation.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.