Restore Your Truck’s Brain and Banish Electrical Gremlins
Are you chasing frustrating electrical issues in your 2010 Chevy Avalanche? Flickering lights, power windows with a mind of their own, door locks acting erratically, or a persistent security light on the dash? Before you spend a fortune at the dealership, the root cause is often a failing Body Control Module (BCM). As the central computer for your truck’s comfort and convenience features, when the BCM goes bad, it can cause a cascade of bizarre, seemingly unrelated problems. This isn’t just an annoyance; it’s a breakdown in your vehicle’s core communication system.
We offer a straightforward, reliable solution. This Body Control Module is a direct-fit replacement for part number 10382479 and many others. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and our technicians will flash the module with the latest GM software specific to your Avalanche. This means no expensive trip to the dealer for programming—it arrives at your door ready for installation, saving you time and hundreds of dollars.
A Technician’s Notebook
A customer brought in his 2010 Tahoe—which shares this exact BCM with the Avalanche—complaining of a dead battery every morning. He’d already replaced the battery and alternator. We hooked up a scanner and saw no obvious codes, but when monitoring the electrical system, we noticed the interior lights and radio would subtly stay powered on even after the truck was off. This is a classic symptom of an internal BCM failure. The module fails to tell other components to go to ‘sleep.’ We installed one of our pre-programmed BCMs, and the parasitic draw was gone. It’s a fix I’ve done hundreds of times on these GM platforms; the symptoms can be confusing, but the solution is often this module.
Is Your Avalanche Showing These Electrical Gremlins?
- ✔ Power windows or door locks working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security or anti-theft system light is illuminated, preventing the truck from starting.
- ✔ Unexplained parasitic battery drain that kills your battery overnight.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ Remote keyless entry failing to respond.
Your Straightforward BCM Installation Guide
Installing your new 2010 Avalanche Body Control Module is a manageable job for a DIYer. While the final steps require a capable scan tool, the physical replacement is simple. The BCM is 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 electrical components.
- Locate the BCM: On your Avalanche, find the BCM under the driver-side dash. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. 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 and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, two procedures are often required using a bi-directional scan tool. This is non-negotiable for proper function. 1) Perform the ‘Setup SDM Primary Key in BCM’ to sync the new BCM with the airbag system and clear the airbag light. 2) A ‘Brake Pedal Position Sensor Calibration’ may be necessary to ensure proper brake light function and stability control performance.
Verified Fitment for a Wide Range of GM Vehicles
This Body Control Module is a direct replacement for part numbers 10382479, 15093910, 15892622, 20815898, 22860591, and many more. It fits a vast array of General Motors vehicles, including but not limited to:
- Chevrolet Avalanche: 2010
- Chevrolet Tahoe / Suburban: 2010
- GMC Yukon / Yukon XL: 2010
- Cadillac Escalade / ESV / EXT: 2010
- Chevrolet Impala: 2006-2013
- Chevrolet Traverse / GMC Acadia / Buick Enclave: 2007-2012
- Chevrolet Express / GMC Savana Vans: 2008-2012
- Cadillac CTS / DTS / SRX: Various Years
- …and many other models listed in the fitment chart. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls the non-engine-related electronics in your vehicle. This includes power windows, locks, lights, wipers, the security system, and the instrument cluster. When it fails, you get strange electrical problems.
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) allows us to flash the BCM with the exact software and calibrations for your truck’s specific features and options. This makes the installation plug-and-play and ensures everything works as it did from the factory.
Is this a difficult part to install myself?
The physical replacement is straightforward for most DIYers with basic tools. However, you MUST have access to a professional-grade scan tool to perform the post-installation procedures like the SDM key setup and brake sensor calibration for the system to work correctly and safely.
Will this fix my ‘Service Theft System’ light?
In many cases, yes. The BCM is a key part of the vehicle’s anti-theft system. A faulty BCM is a very common cause of security system errors and no-start conditions on these GM vehicles.
What happens if I don’t do the post-install procedures?
Skipping the final setup steps will result in problems. You will likely have a persistent airbag warning light on your dash, and your brake lights or traction control may not function correctly, which is a major safety concern.