End Frustrating Electrical Problems and Get Your Truck Back to Work
When your Sierra 3500’s electronics start failing, it’s more than an inconvenienceโit’s a major disruption that can sideline your workhorse. Erratic power windows, a non-responsive HVAC system, or mysterious warning lights are all signs of a failing Body Control Module (BCM). This vital component is the central command for your truck’s body electronics. Our pre-programmed GM 25844480 BCM is the definitive, hassle-free solution to restore full functionality and dependability to your vehicle, getting you back on the road and back to the job with confidence.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of confusing issues. If you’re experiencing any of the following, this module is the likely fix:
- Intermittent or complete loss of climate controls (HVAC) and blower fan operation.
- Power windows, door locks, or exterior/interior lights that work sporadically or not at all.
- An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- Security system malfunctions that may prevent the truck from starting.
- Unexplained stalling, engine misfires, or poor grounding symptoms that seem to have no other cause.
Instead of spending hundreds at a dealership on diagnostics and programming fees, this direct-replacement 2013 GMC Sierra 3500 Body Control Module arrives programmed to your specific Vehicle Identification Number (VIN). This ensures it communicates perfectly with your truck’s other systems right out of the box, resolving common electronic failures without any additional setup.
Features & Benefits
- โ Plug-and-Play Installation: We pre-program the module to your truck’s VIN using the latest GM software updates. This eliminates the need for expensive dealership tools or programming, making for a quick and straightforward installation.
- โ Restored Functionality & Reliability: Regain complete control over your truck’s essential features, from the wipers and lights to the power locks and security system. End the guesswork and fix the root cause of those electrical gremlins.
- โ Built for Durability: Manufactured to strict OEM standards, this BCM is designed to withstand the demanding conditions of a work truck, ensuring long-lasting performance and reliability.
- โ Purchase with Confidence: This unit is backed by our one-year replacement warranty. We stand behind our programming and product quality, giving you peace of mind.
- โ Simple, Hassle-Free Process: No core charge is required. You can keep your old part without the stress of packaging and shipping a core back to us.
Expert Mechanic’s Insight
From over 20 years of hands-on diagnostics, I can tell you that grounding issues are the hidden enemy of vehicle electronics, especially on hard-working trucks like the Sierra. When you replace your BCM, take an extra five minutes to inspect the main ground connections under the dash and on the frame. A clean, tight ground ensures the new module can communicate properly and prevents future electrical headaches. This simple step can be the difference between a successful repair and a recurring problem.
By replacing your failing BCM, you’re not just fixing a part; you’re restoring the reliability you depend on. This 2013 GMC Sierra 3500 Body Control Module is the right choice for a lasting repair. It is also a direct replacement for numerous other GM part numbers, including: 25835966, 15263363, 15878753, 15943678, 25790508, 25835965, 20939137, and 22860591.
Frequently Asked Questions
What does a Body Control Module do on a Sierra 3500?
The BCM acts as the central computer for your truck’s non-engine related electronic systems. It manages functions like your interior and exterior lights, power windows and locks, security system, wipers, and the HVAC climate control system.
Is this BCM difficult to install?
No, the physical installation is very straightforward for someone with basic mechanical skills. The module is typically located under the driver’s side dashboard near the steering column. The entire process often takes less than 15 minutes. Since our module comes pre-programmed, no special computer tools are needed for the initial setup.
Why is VIN programming so important?
VIN programming loads your truck’s specific software and configurations onto the BCM. This ensures it communicates correctly with the Engine Control Module (ECM), instrument cluster, and other systems. Without proper programming, the part simply will not work correctly, and many features will remain inoperative.
What if my airbag light stays on after installation?
In some cases, particularly if DTC B1001 was present, the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). This is a security feature. A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional-grade scan tool to sync the modules and turn off the light.
Will I need to take my truck to the dealer after installing this?
In most cases, no. Our VIN programming handles the primary setup. The only exception is if a specific relearn procedure, like the airbag system sync or a brake pedal position relearn, is required for your specific vehicle and cannot be cleared without an advanced scan tool.
Does this part fit other GM trucks besides the Sierra?
Yes, this BCM is compatible with a wide range of 2007-2013 GM trucks and SUVs, including the Chevrolet Silverado, Tahoe, Suburban, and Cadillac Escalade. Always verify the part number to ensure an exact match for your vehicle.