If your 2008-2012 Savana 2500 work van is starting to act haunted, with flickering lights, power accessories that have a mind of their own, or intermittent no-start conditions that leave you stranded, the Body Control Module (BCM) is the most likely culprit. As the central nervous system for your van’s electronics, a failing BCM can cause a cascade of frustrating and unpredictable problems. Don’t let electrical gremlins cost you time and money. This is a direct, reliable solution to restore your vehicle’s functionality and your peace of mind.
We take the guesswork and dealer hassle out of the equation. Unlike a generic part from a big box store, this BCM arrives at your door pre-programmed with the latest GM software, specifically matched to your van’s VIN. This means no expensive trips to the dealership for programming, saving you hundreds of dollars and significant downtime. Simply provide your VIN at checkout, and we handle the rest.
A Technician’s Notebook: The Intermittent Savana
I once had a fleet manager bring in a 2011 Savana 2500 that was driving his crew crazy. The radio would randomly shut off, the dome lights would flicker, and occasionally, the security light would stay on, preventing the van from starting. They had already replaced the battery and checked the grounds. After plugging in my scan tool, I saw a handful of U-codes (communication errors) pointing to a network issue. In my 20+ years of experience, these ghost-like symptoms on GM vans almost always trace back to a failing BCM. The internal circuit board develops micro-fractures over time from heat and vibration, causing these intermittent connection drops. We installed a VIN-programmed BCM, and the van has been a reliable workhorse for them ever since.
Is Your Savana Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light stays illuminated, causing a no-start condition.
- ✔ The radio or instrument cluster randomly powers down.
- ✔ False warning messages on the driver information center (DIC).
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0100, U0140, or other U-codes.
- ✔ Inconsistent air conditioning or climate control operation.
A Straightforward Guide to Your Savana 2500 Body Control Module Installation
Replacing the BCM on your Savana is a manageable job for a DIYer with basic tools. The module is typically located behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: Carefully remove the dash trim panels necessary to access the BCM. On most Savana and Express vans, this is in the center dash area.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearn Procedures: Start the vehicle. As noted below, some models may require a brake pedal position relearn or an airbag system sync with a capable scan tool if a warning light is present.
Important Post-Installation Information
While our VIN programming handles the heavy lifting, some vehicle systems may need to be re-synchronized after installation. This is a normal part of the process.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be done with a professional-grade scan tool. This ensures the new BCM and the airbag system are communicating correctly.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control functionality.
- No Core Charge: You are not required to return your old module. This saves you the cost and hassle of a core return.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual for procedures specific to your vehicle’s year and options.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15880684 and is compatible with a wide range of GM vehicles. Please verify your part number before ordering. This part is guaranteed to fit the following models:
- GMC Savana 1500/2500/3500 Van (2008-2012)
- Chevrolet Express 1500/2500/3500 Van (2008-2012)
- GMC Acadia (2007-2012)
- Buick Enclave (2008-2012)
- Buick Lucerne (2006-2011)
- Cadillac CTS / DTS / SRX / STS (Various Years, check list)
- Chevrolet Avalanche / Suburban / Tahoe (2010, check ID)
- Chevrolet Captiva Sport (2012)
- Chevrolet Equinox (2007-2009)
- Chevrolet Impala (2006-2013)
- Chevrolet Monte Carlo (2006-2007)
- Chevrolet Traverse (2009-2012)
- GMC Yukon / Yukon XL (2010, check ID)
- Hummer H2 (2008-2009)
- Pontiac G8 (2008-2009)
- Pontiac Torrent (2007-2009)
- Saturn Outlook (2007-2010)
- Saturn Vue (2008-2010)
Frequently Asked Questions
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the Body Control Module with the exact software and settings your Savana 2500 had when it left the factory. This ensures all your specific options work correctly and makes the installation process as simple as possible.
Is this a plug-and-play part?
Yes, for the most part. Because we pre-program it to your VIN, you will not need a trip to the dealer for initial programming. However, as with any BCM replacement, some secondary systems like the airbag or brake sensor may require a ‘relearn’ procedure with a capable scan tool after installation.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. A failing BCM is a very common cause of security system faults and no-start conditions on these GM vans. This module restores proper communication between the ignition key, security system, and engine computer.
Do I need to return my old BCM?
No. We do not charge a core fee, so you can keep your original part. This saves you the hassle and expense of shipping a part back.
What tools do I need for the installation?
You’ll need basic hand tools like a socket set and trim removal tools to access the module in the dash. For potential post-install procedures, a bi-directional scan tool is recommended to perform any necessary system relearns.