Restore Full Command Over Your Truck’s Electronics
Are you dealing with baffling electrical issues in your GM truck? Flickering dashboard lights, a climate control system with a mind of its own, or power windows that refuse to budge are classic signs of a failing Body Control Module (BCM). This component is the nerve center for your vehicle’s comfort and convenience features. When it fails, it can make your daily drive frustrating and unpredictable. This replacement Body Control Module, equivalent to part number 25790509, is the definitive solution for your 2013 Silverado 3500 BCM and a wide range of other GM vehicles. It arrives pre-programmed to your specific Vehicle Identification Number (VIN), eliminating the need for expensive dealership programming and getting you back on the road with confidence.
From the Diagnostic Bay: The Case of the Haunted Silverado
I recently had a 2012 Silverado 2500 in my shop with a laundry list of complaints from the owner. The radio would turn on and off, the driver’s side power lock was dead, and the airbag light was stubbornly on, showing a DTC B1001. The customer had already replaced the battery and checked fuses. My scanner pointed straight to a communication breakdown with the BCM. Instead of a costly and time-consuming dealer visit, we ordered one of these VIN-programmed modules. It arrived two days later, and the physical swap took less time than it took to drink my morning coffee. All the ghost-like electrical problems vanished instantly. The only remaining step was a quick SDM key sync with my scan tool to clear the airbag code, a procedure that saved the customer hundreds compared to dealership labor rates.
Is Your Silverado Showing These Electrical Faults?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the fix you need:
- ✔ Unresponsive or intermittent HVAC and blower motor controls.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Power accessories like windows, door locks, or interior/exterior lights not working correctly.
- ✔ Security system errors, including no-start or random stalling conditions.
- ✔ A variety of communication codes (U-codes) stored in the vehicle’s diagnostic system.
Your 5-Minute Path to a Fully Functional Truck
Installation is a straightforward process that most DIY enthusiasts can complete with basic hand tools. This module is designed for a perfect fit, making the replacement simple.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On most GM trucks and SUVs, the BCM is located under the driver’s side dashboard, near the steering column. It’s a black box with several large electrical connectors.
- Swap the Module: Carefully unplug the wiring harnesses from the old BCM. Release the retaining tabs and remove the old module. Snap the new, pre-programmed module into place.
- Reconnect and Test: Securely plug all wiring harnesses into the new BCM. Reconnect the negative battery terminal. Start the vehicle and test all functions—lights, windows, locks, and HVAC—to confirm the repair.
- Final Checks: If the airbag light remains on, an ‘SDM Primary Key’ relearn is required using a compatible high-level scan tool. Some models may also require a Brake Pedal Position relearn.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 25790509 and other interchangeable numbers, ensuring broad compatibility. It is a guaranteed fit for the 2013 Silverado 3500 BCM and many other models, including:
ESCALADE & ESV & EXT 07-11
SIERRA 1500 PICKUP 07-11
SIERRA 2500 PICKUP 07-13
SIERRA 3500 PICKUP 07-13
SIERRA DENALI (ALL) 07-13
SILVERADO 1500 PICKUP 07-11
SILVERADO 2500 PICKUP 07-13
SILVERADO 3500 PICKUP 07-13
SUBURBAN 1500/2500 07-11
TAHOE 07-11
YUKON & YUKON XL 07-11
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for installation, with no additional programming required for standard functions.
What is a core charge? Do I need to send my old part back?
There is no core charge for this part. You can keep your old module, saving you the time and hassle of returning it.
My airbag light is on. Will this fix it?
This module will often resolve the root cause of an airbag light related to BCM failure (like DTC B1001). However, after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Is this a difficult part for a DIY mechanic to install?
Not at all. The installation is typically very fast, often under 5 minutes. It involves unplugging the old module and plugging in the new one. Basic hand tools are all that’s needed.
What does this part interchange with?
This module is a direct replacement for part numbers 25790509, 25844480, 25835966, 20939138, 22860591, and many others, ensuring wide compatibility across the GM truck and SUV platform from 2007-2013.
What if I still have problems after installation?
While this module fixes the most common issues, always check for underlying problems like poor ground connections or wiring damage, which can mimic BCM failure. Our expert support team is also available to help guide you.