Restore Full Electrical Control to Your GM Van
If your 2008-2012 Savana 2500 is acting possessed—with flickering lights, erratic power windows, or a security system that has a mind of its own—a failing Body Control Module (BCM) is the likely culprit. As the central command center for your vehicle’s body electronics, a faulty BCM can bring your workday to a grinding halt. This isn’t just an inconvenience; it can be a safety issue. This replacement Body Control Module is your direct, reliable solution, arriving fully programmed with the latest GM software matched specifically to your van’s VIN.
We take the guesswork and high dealership costs out of the equation. Simply provide your VIN during checkout, and our technicians will handle the programming. This ensures that when the part arrives, it’s ready for installation, communicating seamlessly with your van’s other systems. This is the definitive fix for a wide range of frustrating electrical gremlins.
A Technician’s Notebook
I’ve seen countless work vans, especially the Savana and Express models, come into the bay with symptoms that drive owners crazy. A classic case was a contractor whose 2011 Savana 2500 had wipers that would turn on randomly, even on a sunny day, and door locks that would cycle while driving. He’d already replaced the wiper switch and checked for wiring shorts. A quick scan showed multiple U-codes, specifically a U0140 (Lost Communication With Body Control Module). This pointed directly to an internal BCM failure. We installed a pre-programmed module just like this one, and it solved every single issue in under an hour. It’s a common failure point, but thankfully, it’s a straightforward fix with the right part.
Common Signs of a Failing BCM
A failing BCM can manifest in numerous ways because it controls so many different components. If your van is experiencing any of the following, it’s time to consider a replacement:
- ✔️ Intermittent or non-working power windows, door locks, or mirrors.
- ✔️ Horn honking unexpectedly or not working at all.
- ✔️ Interior or exterior lights flickering, staying on, or not turning on.
- ✔️ The security system engaging randomly or the anti-theft light staying illuminated.
- ✔️ Inaccurate gauge readings on the instrument cluster.
- ✔️ Diagnostic Trouble Codes (DTCs) related to BCM communication, such as U0140, U0155, or B1001.
Your Straightforward BCM Installation Guide
For the Savana/Express vans, the BCM is typically located behind the center dash panel. While professional installation is always an option, a confident DIYer can tackle this job.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: Carefully remove the dash trim panels necessary to access the BCM. On these vans, it’s often near the center console or behind the glove box area.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed to be removed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in the same location and securely re-attach the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test the functions: lights, locks, windows, etc.
- Perform Relearns (If Needed): Start the vehicle. If you see an airbag light or experience issues with brake lights, refer to the post-installation procedures below. These may require a scan tool to complete.
Important Post-Installation Steps
Because this BCM is pre-programmed, most functions will work immediately. However, some vehicle systems may require a final handshake. Be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure traction control and brake lights function correctly.
Disclaimer: Vehicle systems vary. Always consult a factory service manual for your specific model for detailed instructions and safety precautions.
Will This BCM Fit Your Vehicle?
This module is a direct replacement for a wide range of GM vehicles and supersedes numerous part numbers. Please verify that your vehicle is on this list. This unit is compatible with 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
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Is this part difficult to install myself?
For many DIYers, this is a manageable job. The main challenge is accessing the module behind the dash. Since it comes pre-programmed, no special computer programming is needed from your end for basic operation.
What information do you need to program the BCM?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN). Please provide it during or after checkout so we can load the correct software and vehicle-specific options.
Will this fix my ‘Service Theft System’ message?
A failing BCM is a very common cause of security system faults and messages. While not a guarantee for every case, replacing a faulty BCM often resolves these issues.
What if my original part number isn’t 95151084?
This module is a direct replacement for a long list of GM part numbers. Please check the compatible part numbers list in the description to ensure it matches your original module.