Restore Your Truck’s Electrical System and Get Back to Work
Is your 2013 GMC Sierra 2500 suffering from frustrating electrical issues? Unpredictable problems like flickering lights, unresponsive power windows, or a malfunctioning HVAC system can cripple your truck’s reliability and disrupt your workday. The Body Control Module (BCM) is the central command for these systems, and when it fails, it can cause a cascade of confusing and costly problems. This genuine GM 25844480 BCM, pre-programmed specifically to your truck’s VIN, is the definitive, no-hassle solution to restore order and get your dependable workhorse back on the road.
Common Symptoms & Your Solution
A failing BCM can be difficult to diagnose, often mimicking other component failures. If you’re experiencing any of the following, a faulty BCM is the likely culprit. This module is the direct fix for:
- Intermittent or non-working HVAC and blower motor controls
- Erratic power windows, door locks, or interior/exterior lights
- Security system malfunctions, causing no-start or stalling conditions
- An active airbag warning light, often with DTC B1001
- A variety of diagnostic trouble codes (DTCs) related to body electronics
Installing our pre-programmed 2013 Sierra 2500 Body Control Module is the most efficient way to resolve these issues permanently, bypassing the time and expense of a dealership visit for programming.
Features & Benefits
- ✔ Plug-and-Play Installation: We program the module to your vehicle’s specific VIN before shipping. This ensures it communicates perfectly with your truck’s existing components right out of the box, eliminating the need for expensive dealer tools.
- ✔ Restores Full Functionality: Regain complete and reliable control over your truck’s critical body electronics, including lighting, security, power accessories, and climate systems.
- ✔ OEM-Grade Dependability: Built to strict General Motors standards, this module ensures the same performance and longevity as the original part, giving you confidence for the long haul.
- ✔ Solves Annoying Electrical Gremlins: Put an end to chasing down confusing electrical faults. Replacing the BCM often resolves multiple issues at once, saving you diagnostic time and frustration.
- ✔ Broad Compatibility: This module is a direct replacement for a wide range of part numbers, including 25823559, 25835966, 15943678, 20939137, and 22860591, ensuring a perfect fit for your application.
- ✔ Hassle-Free Purchase: No core charge is required, so you can keep your old part without the inconvenience of returning it.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench
As a 20-year veteran in diagnostics, I’ve seen countless Sierra owners chase their tails trying to fix symptoms caused by a failing BCM. They replace switches, motors, and relays, only for the problem to persist. The issue is that the BCM is the ‘brain’ for these parts. On these GMT900 platform trucks, proper VIN programming isn’t just a suggestion—it’s essential for the module to sync with the powertrain, anti-theft, and airbag systems. An improperly programmed module can cause more problems than it solves. Our service ensures this 2013 Sierra 2500 Body Control Module is a true bolt-in fix, saving you from that all-too-common installation headache.
Frequently Asked Questions
What does a Body Control Module do on a Sierra 2500?
The BCM acts as the central computer for your truck’s body electronics. It manages non-engine related functions like your interior and exterior lights, power windows and locks, security system, wipers, and the HVAC climate control system.
Is this BCM truly plug-and-play?
Yes. By providing us with your vehicle’s VIN during checkout, we program the module specifically for your truck’s configuration. This allows you to install it without needing a trip to the dealership for additional programming, making it a true plug-and-play solution.
Will this fix my airbag light?
This module can resolve airbag lights caused by BCM communication errors (like DTC B1001). However, in some cases after installation, 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 and turn off the light.
Do I need to return my old BCM?
No. We do not require a core return for this part. You can keep or dispose of your original module, making the process simpler and faster for you.
How do I know if my BCM is the problem?
Diagnosing a bad BCM can be tricky, but common signs include multiple, unrelated electrical issues happening at once. For example, if your power locks, interior lights, and radio all act up simultaneously, the BCM is a primary suspect. A professional diagnosis with a high-end scan tool is the best way to confirm, but the symptoms listed above are strong indicators.
Where is the BCM located on a 2013 Sierra 2500?
The 2013 Sierra 2500 Body Control Module is typically located under the driver’s side of the dashboard, near the steering column. Installation is straightforward and usually takes less than 15 minutes with basic tools.