Is Your Express Van Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, malfunctioning power windows, or strange warning messages on your dash, a failing Body Control Module (BCM) is the likely culprit. The BCM acts as the central nervous system for your van’s body electronics, and when it starts to fail, it can cause a wide range of frustrating and unpredictable issues. This can be especially problematic for a work vehicle like the Express 3500, where reliability is key. Don’t let a faulty module disrupt your work. Get a reliable, VIN-programmed replacement and restore your van’s proper function.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or that flicker randomly.
- ✔ The security system acting up, or the horn honking unexpectedly.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ “Service Electrical System” or similar warnings on the driver information center.
- ✔ A no-start condition where the engine cranks but won’t fire due to security system confusion.
- ✔ Complete loss of communication with the module when using a diagnostic scan tool.
A Simple, Programmed Solution for Your Express 3500 Body Control Module
Replacing the BCM on your 2008-2012 Express 3500 Van doesn’t have to mean a costly trip to the dealership. We provide a direct-fit Express 3500 Body Control Module that comes pre-programmed to your vehicle’s specific VIN. This means no expensive dealer programming is required. Simply provide us with your VIN during checkout, and we’ll flash the module with the latest GM software updates for your exact vehicle configuration. This ensures all your van’s options and features work as intended right out of the box.
Important Post-Installation Information
While our programming handles the majority of the setup, some GM vehicles may require additional steps after installation. These are known as ‘relearn’ or ‘setup’ procedures. Depending on your specific model and options, you may need a professional scan tool to perform the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is necessary to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration may be required.
Please consult a factory service manual or a qualified automotive technician if you are unsure about these procedures.
This module is a direct replacement for a wide range of part numbers, including: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, and many more. Please check the fitment list to confirm compatibility with your vehicle.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls many of your vehicle’s non-engine related electronic functions. This includes power windows, door locks, interior and exterior lighting, security system, wipers, and instrument cluster warnings.
Is this BCM ready to install out of the box?
Yes, this BCM is pre-programmed to your vehicle’s VIN before we ship it. This eliminates the need for dealer programming. However, some vehicles may require minor ‘relearn’ procedures for systems like the airbags or brake sensor after installation, which may require a professional scan tool.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. You can typically find your VIN on the driver’s side dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
What if my airbag light is on after I install the new BCM?
This is a common security feature on GM vehicles. It means the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A qualified technician with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old part back?
No. There is no core charge for this part. You can keep your original module.