Restore Full Electrical Function to Your GM Vehicle
Are you battling frustrating electrical problems in your Chevy Express or other GM vehicle? Issues like malfunctioning power windows, erratic interior lights, faulty door locks, or a security system that acts up on its own are often signs of a failing Body Control Module (BCM). The BCM is the central computer responsible for managing your vehicle’s body-related accessories. When it fails, it can cause a wide range of confusing and intermittent symptoms that can be difficult to diagnose.
We had a contractor come in with his 2011 Express 2500 work van. The dome lights would randomly stay on, draining the battery overnight. He’d also notice the power locks wouldn’t work with the fob, but would work an hour later. He had already replaced the battery and checked fuses. After hooking up our scanner, we saw communication loss codes pointing directly to the BCM. We installed a VIN-programmed module, and all the strange electrical gremlins disappeared instantly. It saved him from costly downtime and the headache of chasing phantom electrical issues.
Common Symptoms of a Failing BCM
- ✔ Power windows, mirrors, or locks working intermittently or not at all.
- ✔ Interior or exterior lights staying on or not turning on.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Warning lights appearing on the dash for seemingly unrelated systems.
- ✔ The radio or climate control system behaving erratically.
- ✔ In some cases, a no-start condition due to security system conflicts.
Solving Issues with Your 2008-2012 Express 2500 BCM
This replacement Body Control Module is the definitive solution to these problems. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN. This ensures that it has the correct software and configuration for your exact options package, straight out of the box. We load the latest software updates from GM, which can resolve issues that were present even in the original factory programming. Simply provide us with your VIN during checkout, and we’ll handle the rest, shipping you a part that’s ready for installation.
Installation and Post-Install Steps
While this module is designed for a straightforward installation, some vehicles may require additional steps after the part is in place. These are known as ‘relearn’ procedures and are necessary to sync the new BCM with other modules in your vehicle.
- Airbag System Sync: If the airbag light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn may be required.
Note: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM part numbers. If your original module has any of the following numbers, this part will work for you once programmed to your VIN: 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. This part fits dozens of models, including the Chevy Express, GMC Savana, Cadillac Escalade, Chevy Tahoe, and more. The key is the VIN-specific programming we provide.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors various electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
Do I need to have this BCM programmed?
No. We handle all the programming for you before we ship the part. Just provide your vehicle’s VIN at checkout, and the module will arrive ready for installation with the latest GM software.
How do I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Is this a simple plug-and-play installation?
For many vehicles, it is. However, as noted, some models may require post-installation ‘relearn’ procedures for the airbag or brake systems. This often requires a professional diagnostic tool.
What happens if I don’t perform the post-install relearn procedures?
If a relearn is required and not performed, you may have a persistent warning light (like the airbag light) or certain features may not function correctly. The vehicle will typically still run and drive.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.