Is Your Avalanche Acting Possessed? Tame the Electrical Gremlins for Good.
If your 2010 Chevy Avalanche is suddenly plagued by flickering lights, a dead instrument cluster, random warning chimes, or a security system that won’t let you start the engine, you’re not alone. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your truck’s body electronics, and when it goes bad, it can make your vehicle feel unpredictable and unsafe.
Forget the expensive trip to the dealership and the hassle of finding a shop with the right programming tools. This is a direct-fit replacement Body Control Module, part number 25934762, that arrives at your door already programmed to your truck’s specific VIN. We handle the complex part so you can focus on the straightforward installation.
A Real-World Scenario from My Shop
“Just last month, a 2010 Avalanche 1500 was towed in. The owner was frustrated—sometimes it would start, sometimes it wouldn’t. The power locks worked intermittently, and the radio would shut off for no reason. He’d already replaced the battery and checked the alternator. After hooking up my scan tool, I saw a slew of communication error codes pointing to the BCM. A failing BCM can send conflicting signals across the vehicle’s network, causing exactly this kind of chaos. We installed a VIN-programmed module just like this one, performed the necessary security relearn, and had him back on the road in under an hour. It’s a fix that restores both function and peace of mind.”
The Simple Solution for a Complex Problem
This isn’t just a part; it’s a complete solution. By providing us with your VIN during checkout, we load the latest GM-certified software directly onto the module. This ensures it communicates perfectly with your truck’s other computers—the Engine Control Module (ECM), Transmission Control Module (TCM), and security system—right out of the box.
- ✔ No Dealer Programming Needed: We flash the module with your VIN, saving you hundreds in dealer fees and service appointments.
- ✔ Fixes Common Failures: A reliable solution for issues like erratic lights, non-functional power windows/locks, security system faults, and false dashboard warnings.
- ✔ Restores Full Functionality: Get your interior accessories, lighting, and security features working like new again.
- ✔ Direct-Fit Replacement: Guaranteed to match the function of the original part number 25934762 and other superseded numbers.
Easy Installation Guide for your 2010 Avalanche 1500 BCM
Replacing the BCM on your Avalanche is a manageable job for a DIYer with basic tools. It’s typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On the 2010 Avalanche, it’s under the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so don’t force them. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in place and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock in.
- Reconnect Battery & Perform Final Steps: Reconnect the negative battery terminal. Follow the critical post-installation procedures below.
CRITICAL: Post-Installation Procedures
To ensure all systems operate correctly and safely after installing your new BCM, a few final steps are required. These procedures sync the new module with your truck’s other safety and security systems.
- Airbag System Reset: The ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This step is essential to clear the airbag warning light and ensure the safety system is active.
- Brake Pedal Position Sensor Relearn: Some vehicles require the brake pedal position sensor to be recalibrated. This ensures the brake lights and stability control system function correctly.
- Security Relearn Procedure: Your vehicle may require a simple 10-minute or 30-minute key relearn procedure to recognize the new BCM. This can typically be done without special tools by cycling the ignition key.
Note: If you are not comfortable performing these steps, a local qualified mechanic can complete them quickly.
Guaranteed Fitment & Part Number Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your vehicle is on the list below. 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 Models Including: Acadia (07-12), Avalanche 1500 (10), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade / ESV / EXT (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 1500 (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon / XL 1500 (10), and more. Please check the detailed fitment list or contact us to confirm.
Frequently Asked Questions
- Q: How do I provide my VIN?
- A: Simply enter your 17-digit VIN in the designated box on the checkout page. We cannot program or ship the module without it.
- Q: Is this a simple plug-and-play part?
- A: It’s very close. The main programming is done for you, but you must perform the post-installation procedures (like the airbag key setup and security relearn) to fully sync the module with your vehicle.
- Q: What are the most common symptoms of a bad BCM?
- A: The most frequent signs are erratic interior/exterior lights, power windows or locks not working, security system issues causing a no-start, and false warning lights on your dash.
- Q: Will this fix my specific problem?
- A: This part corrects issues directly caused by a faulty BCM. It’s crucial to properly diagnose the problem first, as similar symptoms can be caused by bad wiring or other modules. If you’re unsure, consult a professional mechanic.
- Q: Do I need special tools for the installation?
- A: For the physical swap, you only need basic hand tools. For the finalization steps, a high-level scan tool is required for the airbag system reset, which a local repair shop can perform.