Restore Your Van’s Electrical Systems and Get Back to Work
If you’re dealing with bizarre electrical issues in your Chevy Express or GMC Savana—like power windows with a mind of their own, flickering interior lights, or a security system that won’t cooperate—you’ve likely met the frustrating symptoms of a failing Body Control Module (BCM). As the central command for your van’s body electronics, a faulty BCM can turn a reliable workhorse into a source of daily headaches. This isn’t just an inconvenience; it can affect your productivity and safety.
This is a direct-fit, plug-and-play solution. We take the hassle out of the repair by programming this BCM specifically to your vehicle’s VIN before we ship it. You get a module loaded with the latest GM software updates, ready for installation right out of the box. No expensive trips to the dealership for programming are required. This is the straightforward, reliable fix you need to get your van’s features working correctly again.
Case Study: A Tricky Diagnosis
I remember a 2011 Express 3500 fleet van that came into my shop. The complaint was intermittent: sometimes the cargo lights wouldn’t turn on, and other times the driver’s side power lock would cycle randomly while driving. The driver was convinced it was a wiring short. We spent hours checking harnesses and grounds with no luck. On a hunch, we scanned for BCM communication codes and found a history of U0140 (Lost Communication With Body Control Module). Even though the code wasn’t active, the history told the story. The BCM was failing internally. We swapped in a VIN-programmed BCM, and every single phantom issue disappeared. It’s a perfect example of how one component, the 2008-2012 Express 3500 BCM, can cause a cascade of seemingly unrelated problems.
Is Your Van Showing These Symptoms?
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior dome lights or exterior lamps staying on or not working at all.
- ✔ The security system or keyless entry failing to respond.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Warning lights on the dash for systems controlled by the BCM (e.g., airbag, ABS) after ruling out other causes.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0140, B1001, or other B-series (Body) or U-series (Network) codes.
A Straightforward Guide to Your BCM Installation
For the Chevy Express and GMC Savana, the BCM is typically located behind the center dash panel. While professional installation is always an option, a confident DIYer can perform this replacement.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. On Express/Savana vans, this is 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. Once disconnected, unbolt or unclip the old module and remove it from the vehicle.
- 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 and Test: Reassemble the dash trim, then reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, etc.
Post-Installation Notes
While this module is programmed for a simple installation, some vehicles may require additional steps for full system integration:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be necessary to ensure correct brake light and traction control operation.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers. Please verify your vehicle is on this list. After purchasing, you must provide your VIN so we can ensure perfect programming.
This module replaces 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, 95151084.
Fits Models Including:
- Acadia 2007-2012
- Avalanche 1500 2010
- Caprice 2011-2013
- Captiva Sport 2012
- CTS 2008-2013
- DTS 2006-2011
- Enclave 2008-2012
- Equinox 2007-2009
- Escalade / ESV / EXT 2010
- Express 1500/2500/3500 Van 2008-2012
- G8 2008-2009
- Hummer H2 2008-2009
- Impala 2006-2013
- Lucerne 2006-2011
- Monte Carlo 2006-2007
- Outlook 2007-2010
- Savana 1500/2500/3500 Van 2008-2012
- SRX 2007-2009
- STS 2010
- Suburban 1500 2010
- Tahoe 2010
- Torrent 2007-2009
- Traverse 2009-2012
- Vue 2008-2010
- Yukon / Yukon XL 1500 2010
Frequently Asked Questions
Frequently Asked Questions
What is the process after I place my order?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. We need this to program the BCM with the correct software for your specific vehicle before we can ship it.
Do I need to have this BCM programmed by a dealer?
No. The main benefit of our service is that we program the module for you. It will arrive ready to be installed, saving you hundreds in dealership fees and towing costs.
Where is the BCM located on my 2008-2012 Express 3500 Van?
On most Express and Savana vans of this generation, the BCM is located in the center dash area, often accessible by removing trim panels or the glove box.
Is there a core charge or do I need to send my old part back?
There is absolutely no core charge for this module. You can keep your original part.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system (SDM). This procedure, called ‘Setup SDM Primary Key in BCM,’ must be done with a bi-directional scan tool by a professional mechanic.