Restore Full Electrical Function to Your GM Vehicle
Is your Chevrolet Express, GMC Savana, or other GM vehicle experiencing bizarre electrical problems? The Body Control Module, or BCM, is the central command center for your vehicle’s body electronics. When it fails, it can cause a cascade of frustrating issues, from flickering lights to non-functional power accessories. This replacement Body Control Module is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
From the Diagnostic Bay
We had a 2011 Express 2500 work van come in that was driving the owner crazy. The dome lights would stay on, the power locks worked intermittently, and the radio would sometimes refuse to turn off even with the key out. The owner had already replaced the battery and checked fuses with no luck. After a quick scan, we pinpointed a faulty BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our VIN-programmed units. In under an hour, all the electrical gremlins were gone, and the van was back in service, saving the owner significant downtime and expense.
Common Symptoms of a Failing BCM
- ✔ Erratic power windows, mirrors, or door locks
- ✔ Interior or exterior lights not working correctly or staying on
- ✔ Horn sounding unexpectedly or not at all
- ✔ Vehicle security system malfunctions or false alarms
- ✔ Instrument cluster warning lights (like the airbag light) illuminating
- ✔ Wipers behaving erratically
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire
The Plug-and-Play Advantage: A Programmed Express 2500 Body Control Module
The biggest hurdle in replacing a BCM is the need for expensive, dealer-specific programming. Our process eliminates that step entirely. By providing us with your vehicle’s VIN during checkout, you receive a fully updated and correctly configured Express 2500 Body Control Module that is ready for installation right out of the box. This ensures all the options and features your vehicle came with from the factory will work correctly with the new module.
Important Installation Notes
While this module is designed for a direct-fit, plug-and-play installation, some vehicles may require simple post-installation relearn procedures. These can often be performed with a high-end diagnostic scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Frequently Asked Questions
Do I need to take this BCM to the dealer for programming?
No. We program the module to your vehicle’s VIN before we ship it to you. It arrives ready to be installed, saving you time and money.
How do I provide my VIN?
You can add your vehicle’s 17-digit VIN to the notes section during checkout, or we will contact you for it after your purchase is complete. We cannot ship the module until it is programmed.
What if my original part number is not 15872421?
This module replaces a wide range of original part numbers. Please check the detailed part number list in the description. If your original number is on that list, this part is the correct replacement for your vehicle.
What does ‘No Core Charge’ mean?
It means you do not need to send your old, faulty module back to us. You can keep it or dispose of it yourself, simplifying the repair process.
Where is the BCM located on my Express Van?
On most 2008-2012 Express and Savana vans, the Body Control Module is located in the center dash area. However, location can vary by model, so it’s always best to confirm with a service manual.