Are you battling frustrating electrical gremlins in your GM truck or SUV? Intermittent wipers, malfunctioning power windows, a dead HVAC system, or a persistent airbag light are all common indicators of a failing Body Control Module (BCM). This vital component is the central nervous system for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing and seemingly unrelated problems. This OEM-quality BCM, part number 15116066, is the definitive solution, arriving expertly pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
Diagnosing and Replacing Your Avalanche 2500 Body Control Module
The BCM manages a vast network of accessories and functions that you use every day. A faulty module can disrupt communication between these systems, leading to incorrect operation or complete failure. By replacing your old unit with this pre-programmed module, you restore the original factory commands and ensure all components work together seamlessly. This is not just a replacement part; it’s a restoration of your vehicle’s core electronic stability and reliability, specifically designed for your Avalanche 2500 Body Control Module needs and a wide range of other GM vehicles.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ HVAC and climate control systems that work intermittently or not at all.
- ✔ An active airbag warning light, often with a B1001 diagnostic trouble code.
- ✔ Vehicle security system malfunctions, including no-start or anti-theft light issues.
- ✔ Erratic gauge cluster behavior or warning messages.
- ✔ Non-functional windshield wipers or washers.
This module is a direct replacement for a variety of part numbers, including 15064149, 10383536, 15116066, 15136225, 15198116, and more. Installation is straightforward for the experienced DIYer or any professional technician. Located under the driver’s side dash, it can typically be swapped in under 10 minutes. Simply provide your VIN at checkout, and we’ll handle the programming. No trip to the dealership is required, saving you time and money.
Post-Installation Notes
In some cases, particularly if the airbag light was on, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a professional scan tool to sync the new BCM with the airbag system. This is a simple step for any qualified shop. There is no core charge for this part, so you can keep your old module without any hassle.
Frequently Asked Questions
Do I need to program this BCM?
No. This Body Control Module comes pre-programmed to your vehicle’s specific VIN. Just provide your VIN during checkout, and it will arrive ready for a plug-and-play installation.
What tools are needed for installation?
Basic hand tools are typically all that’s required to access and replace the module, which is usually located under the steering column. The process generally takes less than 10 minutes.
What if my airbag light is on after installing the new BCM?
If the airbag light is illuminated, a procedure called ‘Setup SDM Primary Key in BCM’ needs to be performed with a professional scan tool. This syncs the airbag system to the new module and is a quick process for any repair shop.
Will this fix my HVAC blower motor issues?
Yes, a faulty BCM is a very common cause of intermittent or non-working HVAC controls and blower motor function in these GM trucks and SUVs. This part is designed to resolve those issues.
Is this the correct part for my vehicle?
This module fits a wide range of 2002-2007 GM vehicles including the Silverado, Sierra, Tahoe, Yukon, Escalade, and Hummer H2. It is a direct replacement for part numbers 15064149, 15116066, 15136225, and many others. Please verify the fitment list on this page.