Programmed 2008-2012 Express 3500 BCM | Body Control Module 15872421

Restore Your Van’s Electrical System with a Plug-and-Play Solution

Are you dealing with baffling electrical issues in your Chevy Express or GMC Savana van? Flickering lights, malfunctioning power windows and locks, a security light that won’t turn off, or even a frustrating no-start condition can all point to a single culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause chaos, making your reliable workhorse feel unpredictable. This isn’t just an annoyance; for a work van, it’s downtime and lost income.

This is a direct-fit replacement Body Control Module, arriving at your door fully programmed to your vehicle’s specific VIN. We load the latest GM-certified software before it ships, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN during checkout, and we handle the rest, giving you a straightforward path to getting your van back in service.

Is Your Van Showing These Electrical Issues?

• ✔ Erratic or non-functional interior and exterior lights.
• ✔ Power windows, door locks, or mirrors working intermittently or not at all.
• ✔ The security or anti-theft system light stays on, preventing the engine from starting.
• ✔ Instrument cluster gauges behaving erratically or going dead.
• ✔ Communication error codes stored, such as U0100, U0140, or other U-series codes.
• ✔ Unexplained battery drain when the vehicle is off.

A Straightforward Guide to Installation

Replacing the BCM is a manageable job for a DIYer with basic tools. While the exact location can vary slightly by model, the process is generally similar.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
2. Locate the BCM: On most 2008-2012 Express and Savana vans, the BCM is located in the center dash area, often accessible after removing a lower dash panel.
3. Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to 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 place and securely reconnect all electrical connectors. Ensure they click into place.
5. Reconnect Power: Reattach the negative battery terminal.
6. Perform Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Note that some additional steps may be required, as outlined below.

Important Post-Installation Information

While our VIN programming handles the critical setup, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal for modern vehicles.

• Airbag System Sync: If the airbag warning 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: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
• No Core Charge: You are not required to return your old BCM. There is no core charge or deposit associated with this purchase.

Verified Vehicle Compatibility

This Body Control Module is a direct replacement for a wide range of GM vehicles and is interchangeable with numerous part numbers. Please verify your vehicle is on this list. It is a compatible replacement for part numbers: 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, and 95151084.

Frequently Asked Questions