Is your 2010 Chevy Avalanche experiencing a host of bizarre electrical issues? From flickering lights and malfunctioning power windows to a security system that prevents your truck from starting, these are classic signs of a failing Body Control Module (BCM). The BCM acts as the central computer for your vehicle’s body electronics, and when it fails, it can cause frustrating and seemingly unrelated problems. This replacement Body Control Module is the definitive solution to restore full functionality and reliability to your vehicle.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by pre-programming the module to your truck’s specific Vehicle Identification Number (VIN) before it ships. This means you get a BCM loaded with the latest GM software updates, ensuring optimal performance and compatibility. Simply provide your VIN after purchase, and we’ll handle the complex programming, saving you a costly trip to the dealership.
From the Diagnostic Bay
We had a 2010 Avalanche come in with a complaint of a parasitic battery drain the owner couldn’t track down. He’d already replaced the battery and alternator. After hooking up our diagnostic tools, we noticed the interior lights would subtly flicker even when the truck was off. The culprit was a faulty BCM that wasn’t letting all the vehicle’s systems properly go to sleep. Replacing the BCM didn’t just fix the drain; it also solved an intermittent power lock issue the owner had forgotten to mention. It’s a perfect example of how one failing module can cause a cascade of confusing symptoms.
Symptoms of a Failing 2010 Avalanche Body Control Module
- ✔ Intermittent or non-working power windows, locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ The security or anti-theft system activating randomly or preventing the engine from starting.
- ✔ Dashboard warning lights appearing without a clear cause.
- ✔ Malfunctions with the radio, climate controls, or windshield wipers.
- ✔ Communication errors with other vehicle modules, often flagged by a mechanic’s scan tool.
Plug-and-Play with Minor Relearns
Our goal is to make your repair as simple as possible. Because this BCM is programmed to your VIN, it is largely a plug-and-play installation. However, depending on your vehicle’s specific configuration, a couple of simple post-installation procedures may be required to sync the new module with other systems. These are common for BCM replacements and are often necessary to ensure everything communicates correctly.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper function of the brake lights and traction control system.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment & Part Number Compatibility
This module is a direct replacement for a wide range of original equipment part numbers, ensuring a perfect fit for your vehicle. It is compatible with 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 a wide variety of other GM vehicles, as detailed in the fitment chart.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before we ship it to you. This saves you time and the extra expense of dealer programming.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle.
Is this a difficult part to install?
For most DIY mechanics, the installation is straightforward. The BCM is typically located under the steering column. The main challenge is accessing it. Once installed, it’s plug-and-play, though some relearn procedures as described may be necessary.
What if my airbag light comes on after I install it?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A mechanic with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for my old BCM?
No, there is no core charge. You can keep your original module without needing to send it back to us.