Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your truck? Intermittent wipers, flickering lights, unresponsive power windows, or a dead HVAC system are common signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and disruptive problems. This genuine GM 25844480 BCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors not working or operating erratically.
- ✔ Interior or exterior lights staying on, flickering, or not turning on at all.
- ✔ HVAC and climate control functions are inoperative or stuck on one setting.
- ✔ Vehicle security system malfunctions, causing no-start conditions or false alarms.
- ✔ Airbag warning light is illuminated, often with Diagnostic Trouble Code (DTC) B1001.
- ✔ Wipers won’t turn off or operate correctly.
- ✔ Communication errors with other modules on the vehicle’s data network.
Why Choose Our Pre-Programmed 2013 Sierra 2500 Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a genuine GM module and program it with the latest software updates using your vehicle’s VIN. This critical step ensures seamless integration with your truck’s existing systems, eliminating the need for expensive dealership programming or specialized scan tools for setup. By installing our VIN-programmed 2013 Sierra 2500 Body Control Module, you restore the precise, reliable operation of all body-related functions as intended by the manufacturer.
Installation is straightforward for any DIYer or professional technician. The BCM is typically located under the driver’s side dashboard, near the steering column. In most cases, the process takes only a few minutes. While the module is plug-and-play, some vehicles may require a simple post-installation procedure. If the airbag light remains on, a ‘Setup SDM Primary Key in BCM’ function must be performed with a capable diagnostic tool. This syncs the new BCM with the airbag system. Additionally, a Brake Pedal Position Relearn may be needed to ensure proper brake light and stability control operation.
This module is a direct replacement for a wide range of part numbers, including: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591. Restore your vehicle’s performance and reliability with confidence.
Frequently Asked Questions
Is this Body Control Module ready to install right out of the box?
Yes! We pre-program the module to your vehicle’s VIN before shipping. This ensures it is ready for a plug-and-play installation without requiring a trip to the dealership.
Where is the BCM located on my 2013 Sierra 2500?
The BCM is located under the driver’s side dashboard, typically attached to a bracket near the steering column for easy access.
What if my airbag light is on after I install the new BCM?
If the airbag warning light is on, you will need to perform the ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade diagnostic tool. This syncs the new BCM with the airbag system.
Will this module fix issues like my power windows and door locks not working?
Absolutely. The BCM directly controls those functions. If your module has failed, replacing it with this programmed unit is the correct repair to restore power window, lock, and other accessory operations.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your old module, which saves you the time and hassle of return shipping.