End Frustrating Electrical Problems in Your GM Truck or SUV
Are you dealing with baffling electrical issues in your vehicle? Flickering lights, unresponsive power windows, a dead HVAC system, or a security light that won’t turn off? These are classic signs of a failing Body Control Module (BCM), the central nervous system for your vehicle’s body electronics. Restore complete and reliable functionality with this OEM-quality, VIN-programmed Body Control Module, a direct replacement for part number 25844479 and many others. It’s the definitive solution for getting your truck or SUV back to perfect working order without a costly trip to the dealership.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of disruptive problems. If you’re experiencing any of the following, this module is the solution you need:
- Intermittent or non-working interior and exterior lights
- Power windows, door locks, or mirrors failing to operate
- HVAC and climate control blower motor issues
- Erratic windshield wiper behavior
- Security system malfunctions, causing no-start or stalling conditions
- An active airbag warning light, often with Diagnostic Trouble Code (DTC) B1001
This pre-programmed module is designed to resolve these issues, clearing common DTCs and restoring the seamless operation you expect from your vehicle. It’s the most effective way to fix your 2013 GMC Sierra 3500 Body Control Module and related GM models.
Features & Tangible Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This crucial step eliminates the need for expensive dealership programming tools, saving you time and hundreds of dollars in labor costs.
- ✔ Restore Full Vehicle Functionality: Regain reliable control over all essential body electronics—from your power locks and windows to your climate control and security system. Drive with confidence knowing everything works as it should.
- ✔ Built for Durability & Reliability: Manufactured to strict OEM standards, this BCM is engineered to withstand the demanding conditions of a work truck or daily-driven SUV, ensuring long-lasting performance.
- ✔ Hassle-Free Transaction: We do not require a core charge. You can keep your old part without the inconvenience of packaging and returning it.
- ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you complete peace of mind with your purchase.
An Expert’s Insight: From over 20 years of hands-on diagnostics, I’ve seen countless owners chase electrical gremlins for weeks, replacing switches and relays only to find the BCM was the root cause. These modules live in a harsh environment under the dash, subject to heat cycles and voltage fluctuations that eventually degrade internal components. Choosing a VIN-programmed BCM isn’t just about convenience; it’s the correct professional repair. It ensures all the vehicle’s systems communicate perfectly from the moment you plug it in, just as the factory intended.
Whether you’re a seasoned DIYer looking to save on repair costs or a professional technician needing a reliable part, this 2013 GMC Sierra 3500 Body Control Module is the smart choice. It is also a direct replacement for a wide range of popular vehicles like the Chevrolet Silverado, Tahoe, Suburban, GMC Yukon, and Cadillac Escalade from 2007 to 2013. Please verify compatibility with the extensive list of interchangeable part numbers (including 25835966, 15943678, 20939137, 22860591, and more) to ensure a perfect fit.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, door locks, the security system, interior/exterior lighting, wipers, and the HVAC system.
Is this BCM truly plug-and-play?
Yes. We program the module to the VIN you provide during checkout. This ensures it communicates correctly with your vehicle’s other systems right out of the box, with no additional programming required for most functions.
Will this fix my airbag light with a B1001 code?
This module often resolves the root cause of a B1001 code. However, after installation, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool to sync the new BCM with the airbag system and turn off the light. This is a simple security handshake procedure.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep or dispose of your original module, making the process simple and hassle-free for you.
How do I know if my BCM is the problem?
If you are experiencing multiple, unrelated electrical issues (e.g., wipers, locks, and radio all acting up), the BCM is a very likely culprit. A professional diagnosis with a high-end scan tool can confirm this by checking for communication errors with the BCM.
Where is the BCM located on my truck?
On most 2007-2013 GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column. Installation usually takes only a few minutes with basic tools.