Restore Your Truck’s Core Functions
Are you battling frustrating electrical gremlins in your truck or SUV? Flickering lights, unresponsive power windows, a dead HVAC system, or a security light that won’t turn off are more than just annoyances—they’re signs of a failing Body Control Module (BCM). This vital component is the central command for your vehicle’s body electronics. When it fails, it can bring your daily operations to a halt. Get back on the road with confidence with this OEM-quality, VIN-programmed GM 25844480 BCM.
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 definitive solution:
- Complete or intermittent loss of HVAC controls or blower motor function.
- Power windows, door locks, or interior/exterior lights that work sporadically or not at all.
- An active airbag warning light, often with Diagnostic Trouble Code (DTC) B1001.
- Security system malfunctions that may lead to stalling, misfires, or a no-start condition.
- A cluster of seemingly unrelated electrical problems and DTCs.
This module is engineered to resolve these problems directly. As a pre-programmed 2013 GMC Sierra 2500 BCM, it communicates seamlessly with your vehicle’s other systems right out of the box, restoring full functionality without the need for expensive dealership programming.
Features & Real-World Benefits
- ✔ Plug & Play Installation: This BCM is pre-programmed to your vehicle’s specific VIN. This eliminates the need for a trip to the dealership for costly programming, saving you time and money.
- ✔ Restored Vehicle Functionality: Regain full, reliable control over your vehicle’s essential electronics, from the wipers and lights to the power locks and climate control.
- ✔ Solve Pesky Warning Lights: Specifically programmed using the latest GM updates to address common DTCs and clear persistent warning lights related to body and security systems.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring dependable performance and longevity for your work truck or family SUV.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight from a 20-Year Tech
“Over the years, I’ve seen countless trucks and SUVs come into the shop with bizarre electrical issues that stump even experienced mechanics. More often than not, the BCM is the culprit. A common mistake during replacement is overlooking the vehicle’s grounding points. Before you install your new 2013 GMC Sierra 2500 BCM, take five extra minutes to inspect and clean the main chassis ground under the driver’s side door area. A poor ground can cause voltage spikes that damage a new module, leading you right back to square one. A clean, solid connection is the cheapest insurance you can buy for this repair.”
Whether you’re a professional technician or a determined DIYer, installing this BCM is a straightforward job. It’s typically located under the steering column and can be swapped out in minutes. For those who own a powerful workhorse like a Sierra or Silverado, or a family-hauling Suburban, restoring full electrical integrity is not just about convenience—it’s about safety and reliability. This module ensures your vehicle performs as intended, every time you turn the key. This is the correct solution for your 2013 GMC Sierra 2500 BCM replacement.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like your lights, power windows and locks, wipers, security system, and HVAC climate control.
Is any additional programming required after installation?
No. This module comes pre-programmed to your vehicle’s VIN. It is designed for a plug-and-play installation. In rare cases, if an airbag light appears, a special ‘SDM key update’ may need to be performed with an advanced scan tool, but this is not typically required.
Where is the BCM located on my truck?
On most compatible GM trucks and SUVs from 2007-2013, the BCM is located under the driver’s side dashboard, near the steering column. It’s an accessible location that typically requires minimal panel removal.
Will this fix my airbag light with code B1001?
A faulty BCM is a common cause of the B1001 code. Replacing it with this correctly programmed unit should resolve the issue. If the light persists after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules.
What if I have a different part number on my old module?
This BCM, part number 25844480, is an interchangeable replacement for a wide range of original part numbers, including 15263363, 25835966, 20939137, and many others listed in the compatibility data. As long as your vehicle is listed, this module will function correctly.