Restore Full Functionality to Your GM Vehicle
Are you experiencing bizarre electrical issues in your 2010 Chevy Avalanche or another compatible GM vehicle? Problems like flickering lights, malfunctioning power windows and locks, a security system that acts up, or even a no-start condition can often be traced back to a single, critical component: the Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated problems. This replacement Body Control Module is the definitive solution to get your vehicle back in perfect working order.
From the Diagnostic Bay
We had a 2010 Tahoe come in with the owner convinced he needed a new battery every six months. The truck had a parasitic draw we couldn’t trace at first. Lights would stay on dimly, the radio wouldn’t always shut off with the door open, and the battery would be dead by morning. After checking all the usual suspects, we focused on the BCM. Swapping in a correctly programmed module not only fixed the draw but also resolved a dozen other minor glitches the owner had learned to live with. It’s a reminder that the BCM controls more than you think, and its failure can mimic many other problems.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Vehicle security system faults or alarm sounding randomly.
- ✔ Horn not working or honking unexpectedly.
- ✔ Instrument cluster gauges behaving erratically or not working at all.
- ✔ Intermittent no-start condition where the engine cranks but won’t fire.
- ✔ “Service Theft System” or other warning messages on the dash.
Plug-and-Play Solution: The 2010 Avalanche Body Control Module
Forget expensive dealership visits and complex programming procedures. This Body Control Module is delivered to you ready for installation. We handle the programming for you before it ships. Simply provide us with your vehicle’s VIN (Vehicle Identification Number) during checkout, and our technicians will flash the module with the latest GM software specific to your vehicle’s configuration. This ensures seamless integration and restores all functions as the factory intended. This is a direct-fit replacement for part number 15819552 and many others.
Installation and Post-Install Notes
While installation is straightforward for many DIYers, some post-installation procedures may be necessary depending on your specific vehicle. Please be aware of the following:
- Airbag System Sync: If the airbag warning light illuminates after installation, a procedure called “Setup SDM Primary Key in BCM” 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 brake light and traction control operation.
- No Core Charge: You are not required to send your old BCM back. There is no core charge associated with this purchase.
This module is a reliable replacement for a wide range of original equipment part numbers, including: 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, and 95151084.
Frequently Asked Questions
Do I need to program this 2010 Avalanche Body Control Module?
No. We program the module for you before shipping. All you need to do is provide your vehicle’s 17-digit VIN when you place your order.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories like power windows, lights, security systems, and door locks.
Where is the BCM located on a 2010 Chevy Avalanche?
On the 2010 Chevrolet Avalanche, the BCM is typically located under the steering column, behind the lower driver-side dashboard panel.
What happens if my airbag light is on after I install the new BCM?
This indicates the new BCM needs to be synchronized with the airbag’s Sensing and Diagnostic Module (SDM). A qualified technician with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.