Diagnose and Resolve Your Truck’s Electrical Gremlins
If your 2007-2011 Chevrolet Avalanche or other GM truck is plagued by bizarre electrical issues like flickering lights, a dead instrument cluster, unresponsive power windows, or an HVAC system with a mind of its own, a failing Body Control Module (BCM) is the most likely culprit. 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 difficult-to-diagnose problems. This genuine OEM-quality BCM, part number 15284816 (interchangeable with 25844480 and others), is the definitive solution to restore your vehicle’s functionality and peace of mind.
Is Your BCM Failing? Watch for These Common Symptoms
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- ✔ HVAC and climate control systems that don’t work or blow air intermittently.
- ✔ An illuminated airbag warning light, often with DTC B1001.
- ✔ Security system malfunctions, leading to no-start or stalling conditions.
- ✔ A host of seemingly unrelated diagnostic trouble codes (DTCs).
The Plug-and-Play Solution: A Pre-Programmed 2007-2011 Avalanche BCM
The biggest hurdle in replacing a BCM has always been the need for expensive programming at a dealership. We eliminate that step entirely. We pre-program this module to your vehicle’s specific VIN before shipping it to you. This ensures that it communicates perfectly with your truck’s other electronic systems right out of the box. There are no extra fees, no appointments, and no towing required. This is a true plug-and-play repair that saves you time and money.
Key Features and Benefits
- ✔ VIN Programmed for Your Vehicle: Arrives ready for installation with the latest GM software updates. No dealership visit needed.
- ✔ Restores Full Functionality: Solves common electrical failures related to lights, locks, windows, wipers, and climate control.
- ✔ Direct-Fit Replacement: Built to precise OEM specifications for a perfect fit and reliable performance.
- ✔ No Core Charge: Keep your old part. There’s no need to worry about returns or core fees.
- ✔ Wide Interchangeability: This module is a direct replacement for a wide range of part numbers, including 25844480, 25835966, 15263363, 15878753, 15284816, 15943678, 20939137, and 22860591.
Installation and Post-Install Procedures
Installation is straightforward for anyone with basic mechanical skills. The BCM is typically located under the driver’s side dashboard, near the steering column. While the physical swap takes minutes, be aware of potential post-installation steps. If your airbag light is on after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ function. Some models may also require a ‘Brake Pedal Position Relearn’ procedure. Always check for and clean any corroded ground connections during the process, as poor grounds are a common cause of BCM failure.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that controls most of your vehicle’s non-engine related electronics, such as power windows, door locks, interior and exterior lighting, the security system, wipers, and the HVAC blower motor.
Is this BCM difficult to install?
The physical installation is simple, usually taking less than 15 minutes with basic tools. It’s located under the dashboard. The key benefit of our module is that it comes pre-programmed, eliminating the most difficult part of the job.
Will I need to take my vehicle to the dealer after installation?
No. This module is programmed to your vehicle’s VIN before we ship it, so it’s ready to install right out of the box. This saves you the time, cost, and hassle of a dealership visit for programming.
What if my airbag light is on after I install this part?
If the airbag light is on, it means the new BCM needs to be synced with the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a simple function for most automotive repair shops.
How do I know if this part fits my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs, including the Avalanche, Silverado, Sierra, Tahoe, Yukon, and Escalade. Please check the fitment list on this page or match your original part number to the list of interchangeable numbers provided.