Restore Full Electrical Function to Your GM Vehicle
Is your 2008-2012 Chevy Express 3500 Van or other GM vehicle experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows and locks, or a security system that acts on its own are common signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and difficult-to-diagnose issues. This replacement module is the reliable, plug-and-play solution to get your vehicle’s features working correctly again.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Horn sounding unexpectedly or not working at all.
- ✔ Vehicle security system faults or false alarms.
- ✔ Intermittent no-start conditions where the starter won’t engage.
- ✔ Warning lights on the dashboard, such as the airbag or brake light.
- ✔ Wipers activating on their own or not turning on.
A Simple, Programmed Solution for Your Express 3500 Body Control Module
Don’t let a faulty BCM keep your vehicle off the road. This isn’t just a part; it’s a complete service. We take the guesswork out of the repair by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN). This ensures that all the factory-intended functions and options for your truck or van work seamlessly upon installation. Simply provide us with your VIN after purchase, and we’ll flash the module with the latest GM software updates before it ships. This process eliminates the need for an expensive trip to the dealership for programming.
Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require additional steps to sync all systems. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated 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: On certain models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and to satisfy the traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, wipers, security system, and horn. It acts as a central hub for these electronic features.
Do I need to program this BCM?
No. This BCM comes fully programmed to your vehicle. After you place your order, you will need to provide us with your VIN. We use your VIN to flash the module with the correct software and latest updates from GM before shipping it to you.
How do I find my original BCM part number?
The part number is printed on a sticker on the case of your original BCM. The location varies by model but is often under the dash on the driver’s side, in the center dash, or behind the glove box. This module replaces a wide range of part numbers listed in the fitment data.
What if my airbag light is on after I install the new BCM?
This is a normal possibility. The new BCM needs to be electronically introduced to the airbag’s computer (SDM). A procedure called “Setup SDM Primary Key in BCM” must be performed with a compatible high-end scan tool to turn off the light.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.