2008-2012 Express 2500 BCM 25847589 Programmed Body Control Module

Restore Your Van’s Electrical System with a VIN-Programmed BCM

If you’re dealing with baffling electrical issues in your 2008-2012 Chevrolet Express 2500, you’re not alone. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable workhorse into a source of constant frustration. The BCM is the central command for your van’s body electronics—from power locks and windows to interior lights and the anti-theft system. When it starts to fail, the symptoms can be unpredictable and difficult to diagnose.

This replacement Body Control Module is the definitive solution to get your Express van back in order. We take the guesswork and hassle out of the repair by pre-programming the module to your van’s specific Vehicle Identification Number (VIN) before we ship it. This means it arrives ready for installation, loaded with the latest GM software updates, saving you a trip to the dealership and their expensive programming fees. Simply provide your VIN at checkout, and we’ll handle the rest.

Is Your Express Van Showing These Symptoms?

A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:

• ✔ Erratic or non-functional power windows and door locks.
• ✔ Interior dome lights or dashboard lights staying on or not working at all.
• ✔ The security or anti-theft light flashing, causing a no-start condition.
• ✔ Horn honking randomly or not working when pressed.
• ✔ Intermittent operation of windshield wipers.
• ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0100, U0140, or other U-series codes.

A Straightforward Guide to BCM Installation

For the confident DIYer or professional mechanic, swapping the BCM is a manageable job. This guide provides the general steps for your Express van.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
2. Locate the BCM: On the Express/Savana vans, the BCM is typically located in the center dash area, often accessible by removing lower dash panels.
3. Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
5. Reconnect Power: Reattach the negative battery terminal.
6. Post-Installation Procedures (CRITICAL): After installation, two procedures may be required. 1) Airbag Light: You will likely need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function to clear the airbag warning light. 2) Brake Pedal Position: Some vehicles require a Brake Pedal Position Sensor recalibration. Failure to perform these steps can result in warning lights and improper system function.

Guaranteed Fitment for Your GM Vehicle

This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your vehicle and part number from the list below to ensure compatibility. This module replaces part numbers including 15847589, 20815898, 22860591, 25892622, and more.