Restore Your Truck’s Electrical System with a VIN-Programmed BCM
Are you chasing electrical gremlins in your 2010 Chevy Avalanche? Flickering lights, malfunctioning power windows, a security system that acts up, or worse, a no-start condition? These are classic signs of a failing Body Control Module (BCM). As the central command for your truck’s body electronics, when the BCM goes down, it can cause a wide range of frustrating and unpredictable issues. Stop throwing parts at the problem. This is the direct, reliable solution you need.
We take the guesswork and dealer hassle 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 vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. It’s a plug-and-play solution designed to get your Avalanche back to 100% functionality quickly and affordably.
A Technician’s Notebook
A customer’s 2010 Avalanche came into the shop last month with a bizarre complaint: the radio would stay on after the key was removed, the dome lights wouldn’t work, and the remote keyless entry was dead. Standard diagnostics led nowhere until we hooked up the scan tool and found multiple communication loss codes with the BCM. It was failing internally. We replaced it with one of our VIN-programmed units. The entire job, including the required security relearn, took less than an hour. The customer saved hundreds compared to the dealership quote and drove away with all systems working perfectly.
Is Your Avalanche Showing These Electrical Gremlins?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (flickering, staying on/off).
- ✔ “Service Theft Deterrent System” message on the dash.
- ✔ Key fob not working or intermittent remote start issues.
- ✔ Wipers or horn activating on their own or not working at all.
- ✔ Communication errors with other modules, leading to various warning lights.
- ✔ Complete no-start condition where the BCM fails to energize the starting circuit.
Your Straightforward BCM Installation Guide
Replacing the 2010 Avalanche Body Control Module is a manageable task for a confident DIYer. It’s typically located under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative battery terminal and wait a few minutes before starting any electrical work.
- Locate the BCM: On the 2010 Avalanche, find the BCM under the steering column, often attached to a junction block. You may need to remove a lower dash panel for access.
- Disconnect Connectors: Carefully release the locking tabs on the multiple wiring harness connectors and pull them straight out from the module. Do not force them.
- Remove the Old Module: Unclip or unbolt the old BCM from its mounting bracket and remove it from the vehicle.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all wiring harnesses. You should hear a click as they lock in.
- Reconnect the Battery: Reattach the negative battery terminal.
- Perform Final Procedures: This is a critical step. You must perform the ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool to clear any airbag faults. Additionally, some vehicles require a brake pedal position sensor recalibration. If you are unsure, consult a professional.
Verified Fitment For Your GM Vehicle
This Body Control Module is a direct replacement for part number 15276271 and is compatible with a wide range of General Motors vehicles. While this listing is focused on the 2010 Avalanche Body Control Module, it also fits many other models. Please verify your original part number matches one of the following to ensure compatibility:
Interchangeable 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.
Common Applications Include: Acadia, Caprice, Captiva Sport, CTS, DTS, Enclave, Equinox, Escalade, Express/Savana Vans, G8, H2, Impala, Lucerne, Monte Carlo, Outlook, SRX, STS, Suburban, Tahoe, Torrent, Traverse, Vue, Yukon, and more. Always match your part number for a guaranteed fit.
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is essential. We use it to program the BCM with the correct software and vehicle-specific options, ensuring it works seamlessly with your truck right out of the box.
Will this fix my ‘Service Theft System’ warning?
A faulty BCM is a very common cause of this warning. While other issues can trigger it, replacing a bad BCM with our programmed unit often resolves the problem. A security relearn procedure may be required after installation.
What tools are needed for the post-installation steps?
To perform the ‘Setup SDM Primary Key’ and brake pedal recalibration, you will need a professional-grade bidirectional scan tool. Many local repair shops can perform these functions for you if you don’t own one.
Is this a simple plug-and-play part?
Because we pre-program it to your VIN, it eliminates the most difficult step (dealer programming). However, as noted, you must perform the necessary security and safety system initializations after the physical installation for full functionality.
How do I find my original BCM part number?
The part number is printed on a sticker directly on your vehicle’s original BCM. You will need to access the module (typically under the driver’s side dash) to read it.