Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your vehicle? Intermittent wipers, flickering lights, unresponsive power windows, or a dead HVAC system are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing and disruptive issues. This genuine GM BCM, part number 25790509 (interchangeable with 25844480 and others), is the definitive solution for a wide range of 2007-2013 GM trucks and SUVs, including the Chevrolet Silverado, GMC Sierra, Tahoe, and Cadillac Escalade.
Symptoms of a Failing Body Control Module
- ✔ Unresponsive or erratic power windows, door locks, and interior/exterior lights.
- ✔ HVAC system failures, such as a blower motor that won’t turn on or stays stuck on one speed.
- ✔ The security system light stays on, or the vehicle experiences random stalling and no-start conditions.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Communication errors with other modules on the vehicle’s data network.
- ✔ Wipers that activate randomly or won’t turn off.
The Plug-and-Play Solution for Your 2013 Sierra 3500 BCM
Don’t waste time and money on a trip to the dealership. We take the hassle out of BCM replacement by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the BCM communicates flawlessly with your truck’s other electronic systems right out of the box. It arrives loaded with the latest GM software updates, guaranteeing optimal performance and compatibility without the need for expensive scan tools or additional programming fees. Simply install the module, and you’re ready to go.
Installation and Post-Install Considerations
Installation is typically a straightforward process. The BCM is located under the driver’s side dashboard, near the steering column. In most cases, it takes just a few minutes to swap the old unit for the new one. However, please be aware of a few potential post-installation steps:
- Airbag System Sync: If the airbag warning light remains on after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed. This requires a professional-grade diagnostic tool and syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure correct brake light operation and stability control function.
This module is a direct replacement for a variety of part numbers, including 25835966, 15263363, 25790508, 25823558, 20939137, and 22860591, among others. By choosing our programmed 2013 Sierra 3500 BCM, you’re getting a reliable, high-quality part that restores your vehicle’s comfort, convenience, and safety features.
Frequently Asked Questions
Is this BCM ready to install when I receive it?
Yes! This Body Control Module is pre-programmed to your vehicle’s VIN before shipping. This makes it a plug-and-play installation with no need for a trip to the dealership for additional programming.
What if my airbag light is on after I install the new BCM?
If the airbag light is illuminated, it means the new BCM needs to be synchronized with your vehicle’s existing airbag module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your old module without any extra fees or hassle.
Where is the BCM located on my 2013 Sierra 3500?
The BCM is typically found under the driver’s side dashboard, near the steering column and fuse panel area. Installation usually takes less than 15 minutes.
Will this fix my HVAC blower motor issue?
A faulty BCM is a very common cause of HVAC control and blower motor problems in these GM trucks. While other components like the resistor or the motor itself can fail, if you have multiple strange electrical issues, the BCM is the most likely culprit.