Restore Full Control of Your Van’s Electronics
Is your Chevy Express van acting possessed? Flickering lights, malfunctioning power windows or locks, a security light that won’t turn off, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the nerve center for your vehicle’s body electronics, when the BCM goes bad, it can cause a cascade of confusing and unpredictable problems. Driving a work vehicle with these issues isn’t just annoying—it’s a hit to your productivity and safety.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional cloning service for this BCM. Simply send us your original module, and we will transfer all its vital data—including your VIN, mileage, and key information—to this replacement unit. The module you receive back will be plug-and-play, with no need for an expensive trip to the dealership for programming. We even send your original module back to you with the newly programmed one.
A Technician’s Notebook
I remember a 2011 Express 3500 that came into the shop a few months back. The owner, a plumber, was at his wit’s end. His interior dome lights would stay on, draining the battery overnight, and the driver’s side power window worked only when it wanted to. He’d already replaced the battery and the window switch with no luck. After connecting my scan tool, I saw a handful of U-codes, specifically a U0140 (Lost Communication With Body Control Module). This pointed directly to an internal BCM failure. Instead of a costly new module and programming from the dealer, we used a cloned unit like this one. The install took less than an hour, and all the bizarre electrical gremlins were gone. It’s a reliable fix that gets hardworking vans back on the job fast.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays illuminated on the dash, potentially causing a no-start issue.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Wipers behaving erratically (turning on by themselves or not shutting off).
- ✔ Communication error codes, such as U0140, stored in the system.
- ✔ Inconsistent or incorrect gauge readings on the instrument cluster.
Your Straightforward Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On the 2008-2012 Express 3500 Van, the BCM is typically located in the center dash area, often accessible by removing lower dash panels.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount the new, programmed BCM in the same location and securely reconnect all the electrical connectors.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Final Checks: Start the vehicle and test all body functions—lights, locks, windows, wipers, etc. Note the post-installation procedures below, as some relearns may be necessary.
Important Post-Installation Information
While our cloning service makes this a nearly plug-and-play process, some GM vehicles may require simple relearn procedures after the BCM is replaced. These are typically performed with a capable diagnostic scan tool.
- Airbag System Sync: If the airbag warning light is on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure to sync the modules.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be required to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles and 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. It fits the following models, among others:
- 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
How does the cloning service work?
After you place your order, you will ship your original BCM to us. We use specialized equipment to extract the unique software, VIN, and security data from your module and flash it onto the replacement unit. This makes the new module an exact electronic match to your original.
Do I need to send my VIN?
For this cloning service, sending us your physical original module is what’s required. The VIN is part of the data we transfer from your old module to the new one, ensuring perfect compatibility.
Will I get my old BCM back?
Yes, absolutely. We always return your original module along with the newly programmed replacement unit. We do not keep cores.
Is this a repair I can do myself?
For many DIYers with basic tools, this is a very manageable job. The primary challenge is accessing the BCM behind the dash. Our cloning service eliminates the need for programming, which is the most difficult part of the process.
What tools are required for the post-installation procedures?
Procedures like the Airbag System Sync or Brake Pedal Position Relearn require a professional-grade bidirectional scan tool. Most local repair shops have this equipment if you find these steps are necessary for your vehicle.