Restore Full Functionality to Your GM Truck or SUV
If you’re dealing with bizarre electrical issues in your 2010 Chevrolet Avalanche—like flickering lights, malfunctioning power windows, or a security system that has a mind of its own—you’re likely facing 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 and hard-to-diagnose problems. This isn’t just an annoyance; it can affect vehicle safety and reliability. For years in my shop, I’ve seen customers spend hundreds on diagnostics trying to chase these electrical gremlins, when the root cause was this single component.
This is your direct, no-hassle solution. We provide a fully programmed 2010 Avalanche Body Control Module, flashed with the latest GM software updates specifically for your truck. Simply provide your Vehicle Identification Number (VIN) after purchase, and we handle the complex programming before it ships. This means you get a part that’s ready to install right out of the box, saving you a costly trip to the dealership and hours of frustration. It’s the most efficient way to get your truck back to 100%.
From the Diagnostic Bay: A Technician’s Notebook
I remember a 2010 Avalanche that came in with a complaint the owner called “the disco effect.” The interior lights would pulse, the radio would cut out, and the door locks would cycle randomly while driving. He was convinced his truck was possessed. We scanned it and found a slew of communication codes, including the infamous U0140 (Lost Communication With Body Control Module). Instead of a complex wiring issue, the fix was simple: a new, properly programmed BCM. Swapping this module restored order and fixed every single symptom. It’s a perfect example of how one part can solve a dozen problems.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ False warnings on the instrument cluster (e.g., “Service 4WD System”).
- ✔ Unexplained battery drain that leaves you with a dead battery.
- ✔ Communication Diagnostic Trouble Codes (DTCs) like U0140, U0155, or B1001.
Your Straightforward BCM Installation Guide
For the confident DIYer or professional mechanic, installing this 2010 Avalanche Body Control Module is a manageable job. In most GMT900 platform trucks like the Avalanche, the BCM is located under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On your 2010 Avalanche, you’ll typically find the BCM mounted to the left of the steering column, often behind a lower dash panel.
- Disconnect and Remove: Carefully unplug the multiple wiring harness connectors. They have locking tabs, so be gentle. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all wiring harnesses, ensuring each plug clicks into place.
- Reconnect Power: Reattach the negative battery terminal.
- Post-Installation Checks: Start the vehicle and test all body functions—lights, locks, windows, etc. Note that some vehicles may require additional relearn procedures as outlined in our documentation.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15872388 and many other interchangeable part numbers. While it is a perfect fit for the 2010 Chevrolet Avalanche, it is also compatible with a wide range of other GM cars, trucks, and SUVs. Please verify your original part number or consult the list below. If your vehicle is listed, this module is the correct fit.
This module replaces the following 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 select models of: Acadia, Avalanche 1500, Caprice, Captiva Sport, CTS, DTS, Enclave, Equinox, Escalade, Express/Savana Vans, G8, Hummer H2, Impala, Lucerne, Monte Carlo, Outlook, SRX, STS, Suburban 1500, Tahoe, Torrent, Traverse, Vue, Yukon & Yukon XL 1500. Always match your part number for guaranteed compatibility.
Frequently Asked Questions
Do I need to send my old BCM back?
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module, which is helpful if you ever need to reference its part number.
Is this BCM truly plug-and-play?
Yes, because we program it to your vehicle’s VIN before shipping, it is designed to be a direct-install part. However, as with any complex electronic component, some vehicles may require a post-installation procedure, such as a brake pedal position relearn.
What if my airbag light comes on after installation?
This is a known possibility. If the airbag (SRS) light illuminates, it means the new BCM needs to be synced with the airbag’s Supplemental Inflatable Restraint (SIR) module. This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship your module without it.
What tools are needed for the additional procedures?
Procedures like the airbag system sync or brake pedal relearn require a bidirectional diagnostic scan tool capable of performing manufacturer-specific functions. Many professional repair shops have this equipment.