Tired of Chasing Electrical Gremlins in Your GM?
Are your vehicle’s lights flickering for no reason? Do the power windows and locks have a mind of their own? These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating, hard-to-diagnose issues. This is where our expertly prepared Programmed GM BCM provides a reliable, straightforward solution, getting your car, truck, or van back to 100% functionality without the dealership hassle.
We take the guesswork and extra expense out of the equation. Simply provide your vehicle’s VIN during checkout, and our technicians will flash this module with the latest, most stable software directly from GM. This means it arrives at your door ready for installation, saving you from costly programming fees and scheduling delays at a repair shop. It’s the most efficient way to restore proper function to your vehicle’s essential features.
A Technician’s Notebook: The Case of the Haunted Express Van
I remember a 2011 Chevy Express 2500 that came into my bay with a truly baffling set of symptoms. The owner, a plumber, said the interior lights would stay on, draining the battery overnight, and sometimes the power door locks wouldn’t respond to the fob. He’d already replaced the battery and checked all the fuses. A scan showed a handful of U-codes (communication errors) but nothing pointing to a single failed component. This is a tell-tale sign. The issue wasn’t one broken part; it was the central controller—the BCM—that was failing to communicate properly. After installing a VIN-programmed BCM, every single issue vanished. It’s a perfect example of how a single module can solve a dozen problems at once.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ The security or anti-theft light stays on, potentially causing a no-start condition.
- ✔ Erratic instrument cluster behavior, with gauges dropping out or warning lights flashing incorrectly.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or U0164.
- ✔ Horn or alarm system activating randomly.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- ✔ Locate the BCM: On most of these GM models, the BCM is located under the dashboard on the driver’s side (e.g., Impala, Acadia) or behind the center dash panel (e.g., Express/Savana vans). A quick search for your specific model will confirm its location.
- ✔ 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.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in place of the old one. Firmly reconnect all electrical connectors, ensuring each one clicks securely into place.
- ✔ Reconnect Power: Reattach the negative battery terminal. The vehicle will now power up with the new BCM.
- ✔ Perform Relearns (If Needed): Start the vehicle. If you see an airbag warning light or notice issues with brake light operation, you may need to perform the post-installation procedures detailed below.
Important Post-Installation Information
Because this Programmed GM BCM is the central command for many systems, it sometimes needs to be formally introduced to other modules in your vehicle after installation. While many vehicles will operate perfectly after the swap, some may require one of the following procedures using a professional-grade scan tool:
- Airbag System Sync: If the airbag light is illuminated after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: To ensure accurate brake light and traction control function, a brake pedal position sensor recalibration may be necessary on certain models.
Disclaimer: We always recommend consulting a factory service manual or a certified technician for procedures specific to your vehicle.
Verified Fitment For Your Vehicle
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers, including 10382479, 15093910, 15819552, 20815898, 22860591, 25892622, and more. Please confirm your vehicle is on the list below:
- 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 Van 1500/2500/3500 (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- Savana Van 1500/2500/3500 (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)
Note: Some models have specific ID requirements. Please match your part number or contact us with your VIN to guarantee compatibility.
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 BCM truly plug-and-play?
Yes, it comes programmed to your VIN. In most cases, it’s a direct swap. However, as noted above, some vehicles may require a simple relearn procedure for the airbag or brake systems, which needs a professional scan tool.
What information do you need to program the module?
We only need your vehicle’s 17-digit Vehicle Identification Number (VIN). You can provide this during checkout or send it to us in a message after your purchase.
How long does the installation take?
For a DIYer with basic tools, the physical swap typically takes 30-60 minutes, depending on the BCM’s location in your specific vehicle.
Will this fix my “Service Theft System” message?
A failing BCM is a very common cause of security system faults and anti-theft messages. While not a guarantee for every situation, replacing a faulty BCM often resolves these issues.
What if I install it and still have problems?
Our pre-flashed modules are rigorously tested. If issues persist, it may indicate another problem in the vehicle, such as a wiring short or a different failed component. We recommend a full diagnostic check by a qualified technician.