Programmed 2008-2012 Savana 3500 Body Control Module 15872388 | VIN Matched

Restore Your Van’s Electrical Stability and Get Back to Work

If you’re dealing with bizarre electrical gremlins in your 2008-2012 GMC Savana 3500, you know how frustrating it can be. One day the power locks don’t work, the next the dome light has a mind of its own, or worse, you’re facing a dead battery every morning. These aren’t random quirks; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command for your van’s body electronics, and when it starts to go, it can make your reliable workhorse feel haunted. This isn’t just an annoyance—it can affect your productivity and safety.

This is a direct-fit, professionally prepared Savana 3500 Body Control Module that solves these issues head-on. We take the biggest headache out of the repair process: programming. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specifically for your van. It arrives at your door ready for installation, saving you from costly dealership programming fees and long wait times.

Is Your Savana Showing These BCM Failure Signs?

• ✔ Erratic or non-functional power windows and door locks.
• ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
• ✔ The security system acting up, or the horn honking randomly.
• ✔ A persistent parasitic battery drain that leaves you with a dead battery.
• ✔ Warning lights on the dash for systems controlled by the BCM (e.g., airbags, ABS).
• ✔ Diagnostic Trouble Codes (DTCs) like U0140, U0155, or other communication errors.
• ✔ Wipers or radio functioning incorrectly.

Your Straightforward BCM Installation Guide

Installing your new Savana 3500 Body Control Module is a manageable job for a confident DIYer or any professional technician. In most Savana and Express vans, the BCM is located behind the driver’s side of the dashboard, near the center console area.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. Access the Module: You will likely need to remove a few lower dash panels or the glove box to gain clear access to the BCM.
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 BCM: Mount the new, pre-programmed module in the same location and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
5. Reconnect and Test: Re-attach the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: lights, locks, windows, radio, etc.

Important Post-Installation Steps

Because this module is central to many systems, a couple of quick relearn procedures may be needed after installation. This is normal and ensures all related components communicate correctly.

• Airbag System Sync: If your airbag warning light is on after installation, a simple “Setup SDM Primary Key in BCM” procedure is required. This syncs the airbag system with the new BCM and must be done with a professional-grade scan tool.
• Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure brake lights and traction control function as expected. This can also be performed with a compatible scan tool.

Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified professional for specific instructions related to your vehicle.

Verified Vehicle Compatibility

This module is a direct replacement for part number 15872388 and is compatible with a wide range of GM vehicles. It also interchanges with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084. Please verify your part number and check the detailed fitment list below.