Is your Chevrolet Avalanche or GM truck plagued by bizarre electrical issues?
If you’re dealing with malfunctioning lights, unresponsive power windows, or a climate control system with a mind of its own, a failing Body Control Module (BCM) is the likely culprit. The BCM acts as the central command center for your vehicle’s body electronics. When it fails, it can create a cascade of frustrating and difficult-to-diagnose problems. This OEM-quality replacement BCM, part number 15878753 (interchangeable with 25844480 and others), is the definitive solution for restoring full functionality to your vehicle.
Expert Pro Tip
Expert Pro Tip
Before condemning your BCM, always perform a thorough check of the main vehicle grounds, especially the one near the BCM’s location under the driver’s side dash. A loose or corroded ground connection can mimic the symptoms of a failed module and is a common oversight during diagnosis.
Symptoms of a Failing Body Control Module
- ✔ Unpredictable or non-working interior and exterior lights.
- ✔ Power windows, door locks, or mirrors that operate intermittently or not at all.
- ✔ HVAC and climate control blower motor failures.
- ✔ An illuminated airbag warning light, often with a DTC B1001 code.
- ✔ Security system malfunctions, leading to no-start conditions or random alarm activation.
- ✔ A variety of seemingly unrelated diagnostic trouble codes (DTCs) stored in the system.
Diagnosing and Replacing Your 2007-2011 Avalanche BCM
Replacing the BCM is a straightforward repair that can be done in minutes. Located under the steering column, it’s typically held in by a few clips or bolts. The real benefit of our module is the pre-shipment VIN programming. We flash the unit with your vehicle’s specific VIN and the latest GM software, eliminating the need for an expensive trip to the dealership for programming. This ensures that once installed, the module communicates perfectly with your truck’s other systems.
This part is a direct replacement for a wide range of GM trucks and SUVs from 2007-2013, including the Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, and Cadillac Escalade. It is fully interchangeable with part numbers: 25835966, 15263363, 15263497, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591.
While installation is simple, some vehicles may require a post-install procedure. If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. This re-syncs the new BCM with the airbag system. Stop chasing electrical gremlins and restore your truck’s reliability with this plug-and-play 2007-2011 Avalanche BCM.
Frequently Asked Questions
Expert Pro Tip
Before condemning your BCM, always perform a thorough check of the main vehicle grounds, especially the one near the BCM’s location under the driver’s side dash. A loose or corroded ground connection can mimic the symptoms of a failed module and is a common oversight during diagnosis.