Restore Full Electrical Function to Your GM Truck or SUV
As a technician with over two decades of experience under the hood, I’ve seen firsthand the chaos a failing Body Control Module (BCM) can cause. Your 2010 Chevrolet Avalanche 1500 might feel like it has a mind of its own—windows that won’t roll down, dash lights flickering randomly, or a security system that prevents the truck from starting. These aren’t just annoyances; they’re classic signs that the central nervous system of your vehicle’s electronics is failing. The BCM is responsible for managing a huge number of non-engine-related functions, and when it goes, the symptoms can be baffling. This isn’t a part you can just ignore.
We offer a straightforward, reliable solution. This Body Control Module is a direct replacement for part number 10382479 and its many variants. The best part? We handle the complex programming for you. Simply provide your vehicle’s VIN after purchase, and our experts will flash the module with the latest GM software specific to your Avalanche. It arrives at your door ready for installation, saving you the time, cost, and hassle of a trip to the dealership for programming. This is the definitive fix for those frustrating electrical gremlins.
Case Study: A Tricky Diagnosis
I remember a 2010 GMC Yukon (which uses this exact BCM) that came into the shop with a complaint of intermittent no-start and the radio display going haywire. The owner had already replaced the battery and checked the alternator. A basic scan tool showed no engine codes, but my professional scanner revealed a slew of U-codes, specifically a U0140 (Lost Communication With Body Control Module). This pointed directly to the BCM. After confirming power and ground to the module were good, we knew the internal circuitry had failed. A new, programmed BCM like this one solved every single issue instantly. It’s a common failure, but with the right part, it’s a simple fix.
Is Your Avalanche Showing These Symptoms?
- ✔️ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔️ Interior or exterior lights flickering, staying on, or not turning on.
- ✔️ The security or anti-theft system light is on, preventing the engine from starting.
- ✔️ The radio or climate controls are unresponsive or behaving strangely.
- ✔️ The instrument cluster displays incorrect information or warning lights.
- ✔️ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔️ A clicking noise from under the dash area.
A Straightforward Guide to Installation
For the confident DIYer, replacing the BCM on your 2010 Avalanche is a manageable job. 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 and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: Remove the lower dash panel beneath the steering wheel to gain access. The BCM is a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully release the locking tabs on each electrical connector and unplug them. Then, unbolt or unclip the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors, ensuring they click securely into place.
- Final Steps: Reinstall the dash panel and reconnect the negative battery terminal. Start the vehicle to confirm that the electrical issues are resolved.
Important Post-Installation Information
While our programming handles the critical vehicle-specific data, some systems may require a ‘handshake’ with the new BCM after installation. This is normal.
- Airbag System Sync: If your airbag warning light illuminates after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure proper brake light and stability control function. This also requires a capable scan tool.
Disclaimer: These are general guidelines. Always refer to a factory service manual for procedures specific to your vehicle’s year and model.
Verified Vehicle Compatibility
This module is a direct replacement for part number 10382479 and a wide range of other GM part numbers. It is compatible with the following vehicles, but always verify your part number and specific vehicle options:
Replaces 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.
What exactly is a ‘Cloning Service’?
What exactly is a ‘Cloning Service’?
This means we program the replacement BCM with your vehicle’s specific VIN and software before we ship it. This makes the module ready to install out of the box, avoiding the need for expensive programming tools or a visit to the dealership. It’s designed to be a plug-and-play experience.
Do I need to send my original BCM to you?
No. Our service is based on your vehicle’s VIN. We program the replacement unit and ship it to you. After you install our module, we will arrange for the return of your original BCM, which is always sent back to you. We do not keep cores.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, it’s a very manageable job. It primarily involves removing a dash panel and swapping the module. The most difficult part is typically the programming, which we take care of for you. Please see our installation guide above for more details.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of security system-related issues, including no-start conditions and ‘Service Theft System’ warnings. While other components can be at fault, if you’re also experiencing other electrical issues, the BCM is the most likely culprit.
What if my part number isn’t listed but my vehicle is?
It’s critical to match the part number. GM used many different BCMs across these models. Please locate the part number on your original module to ensure compatibility. If you’re unsure, feel free to contact us with your VIN and we can assist you.