Is Your GM Truck Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, unresponsive power windows, a malfunctioning security system, or strange HVAC behavior in your GMC Sierra, Chevrolet Silverado, or other GM SUV, 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 starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. This genuine quality GM Body Control Module, part number 25844480, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Symptoms of a Failing Body Control Module
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior or exterior lights staying on, flickering, or failing to activate.
- ✔ HVAC controls are unresponsive, or the blower motor behaves erratically.
- ✔ The vehicle’s security system malfunctions, preventing the engine from starting.
- ✔ An active airbag warning light, often accompanied by DTC B1001.
- ✔ Unexplained battery drain while the vehicle is parked.
- ✔ Multiple diagnostic trouble codes related to body systems.
The Superior Solution: A Pre-Programmed 2011 Sierra Denali 3500 Body Control Module
Don’t waste time and money on a trip to the dealership. We take the hassle out of the repair by programming this module specifically for your vehicle before it ships. Using the latest GM software updates, we ensure that it communicates flawlessly with your truck’s other electronic systems right out of the box. This process restores original functionality and resolves common software-related DTCs. This is a direct replacement for a wide range of GM trucks and SUVs from 2007-2013, including the Chevrolet Tahoe, Suburban, Avalanche, and Cadillac Escalade. It is interchangeable with part numbers 25823559, 25835966, 15943678, 20939137, 22860591, and many more.
Installation and Post-Install Procedures
Installation is straightforward for any DIY mechanic. The BCM is typically located under the driver’s side dashboard, near the steering column. The physical swap takes only a few minutes. While our VIN programming handles the majority of the setup, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light remains on after installation. This is a simple function found in most professional-grade scan tools. Similarly, a Brake Pedal Position Relearn might be needed to ensure proper brake light operation. With no core charge, you can simply keep your old part without any hassle.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic features. This includes power windows, locks, interior and exterior lighting, wipers, the security system, and HVAC fan speeds.
Is this module truly plug-and-play?
Yes, it is. We program it with your vehicle’s VIN before shipping, so it’s ready for immediate installation without requiring expensive dealer tools for setup. In some cases, a simple relearn procedure may be needed for the airbag system, which can be done with many professional scan tools.
Where is the BCM located on my 2011 Sierra Denali 3500?
The BCM is located under the driver’s side of the dashboard, usually to the left of the steering column. It is an accessible part that can be replaced with basic hand tools.
What if my airbag light is on after I install the new BCM?
This can happen. You will need to perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible diagnostic scan tool. This syncs the new BCM with your vehicle’s existing airbag system (SDM).
Do I need to send my old part back?
No. This part has no core charge, so you can keep your original module without any additional fees or hassle.