Restore Your Truck’s Electrical System with a Plug-and-Play Solution
Are you chasing down frustrating electrical gremlins in your 2010 Chevy Avalanche? Flickering lights, erratic gauges, power windows or locks that have a mind of their own, or even a no-start condition can often be traced back to a single, failing component: the Body Control Module (BCM). As the central nervous system for your vehicle’s comfort and security features, a faulty BCM can cause widespread and confusing issues. Stop throwing parts at the problem. This is the direct, reliable fix you’ve been looking for.
We take the guesswork and high dealership costs out of the equation. Unlike a generic module from a parts store, this BCM arrives at your door pre-programmed with the latest GM software, specifically matched to your truck’s VIN. This means you can skip the expensive trip to the dealer for programming. It’s a straightforward solution designed for both seasoned mechanics and determined DIYers who want to get their vehicle back to 100% functionality.
A Technician’s Notebook: The Avalanche That Wouldn’t Cooperate
I remember a 2010 Avalanche that came into my bay a few years back. The owner was at his wit’s end. The radio would randomly shut off, the dome lights would flicker while driving, and occasionally, the security light would stay on, preventing it from starting. He’d already replaced the battery and checked the main grounds. A scan tool showed a slew of communication error codes (U-codes) pointing to multiple modules. This is a classic sign. Instead of a dozen failing parts, it’s often the central hub—the BCM—that’s causing the chaos. We installed a VIN-programmed BCM, and just like that, all the bizarre electrical issues vanished. It’s a repair I’ve done hundreds of times, and it highlights how a single component can be the root of so many problems.
Is Your Truck Showing These Symptoms?
- ✔ Flickering interior or exterior lights
- ✔ Power windows, door locks, or mirrors working intermittently or not at all
- ✔ The security or anti-theft light stays illuminated, causing a no-start condition
- ✔ Erratic or non-functional instrument panel gauges
- ✔ Communication error codes (e.g., U0100, U0140) stored in the system
- ✔ Horn or alarm system activating randomly
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On the 2010 Avalanche, the BCM is typically located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- ✔ 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 the same location. Reconnect all the electrical connectors, ensuring they click securely into place.
- ✔ Reconnect Power: Reattach the negative battery terminal.
- ✔ Perform Final Checks: Turn the key to the ‘On’ position and verify that your power accessories, lights, and gauges are functioning correctly. Refer to the post-installation procedures below if needed.
Important Post-Installation Information
While our VIN programming handles the majority of the setup, some GM vehicles require a final handshake between modules after installation. These are not signs of a faulty part but are standard procedures.
- Airbag System Sync: If your airbag warning light is on after installation, a simple “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 some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control operation. This is also performed with a capable scan tool.
- No Core Charge: We make it simple. There is no core charge on this BCM. You can keep your old part, avoiding the hassle and expense of a return shipment.
Will This Fit My Vehicle?
This Body Control Module is a direct replacement for a wide range of GM vehicles and is compatible with numerous original part numbers. Please verify your vehicle and original part number from the lists below to ensure proper fitment.
This BCM is a confirmed fit for a 2010 Avalanche 1500 BCM and 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.
This part also fits other makes and models, including but not limited to: Acadia (07-12), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade (10), Express/Savana Vans (08-12), G8 (08-09), Hummer H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Suburban (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon (10). Always verify your specific options and BCM location.
Frequently Asked Questions
What information do you need to program the BCM?
After you place your order, we simply need your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to load the correct software and vehicle-specific options for a seamless installation.
Do I need a professional to install this?
Many of our customers are DIY enthusiasts who successfully install this part themselves. The physical replacement is straightforward. However, if post-install procedures like an airbag sync are required, you may need access to a professional scan tool or assistance from a local mechanic.
Is this a new or a used part?
This is a high-quality, tested replacement part that has been loaded with fresh, vehicle-specific software directly from GM. It is guaranteed to restore your vehicle’s original functionality.
Will this fix my ‘Service Theft System’ message?
Yes, a failing BCM is a very common cause of issues with the GM Passlock and Passkey anti-theft systems. Replacing it with a properly programmed module often resolves these security-related no-start problems.
What is the benefit of getting a pre-programmed module?
The main benefit is saving time and money. A dealership can charge $100-$200+ just for programming. Our service bundles this into the cost of the part, so it arrives ready to install without needing a tow or a special appointment.