Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical problems in your Chevrolet Avalanche, Silverado, or Tahoe? A faulty Body Control Module (BCM) is often the culprit behind issues like malfunctioning power windows, erratic door locks, dead HVAC controls, or a persistent airbag light. The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing symptoms. This genuine GM-quality Body Control Module, interchangeable with part number 25971917, is the definitive solution to restore your vehicle’s performance and reliability.
Expert Pro Tip: Before replacing your BCM, always inspect the main ground connections, especially the one located on the driver’s side frame rail below the door. Poor grounding is a common cause of BCM failure in these GM trucks and can cause the new module to fail prematurely if not addressed.
Is Your Body Control Module Failing?
A failing BCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or refusing to turn on.
- ✔ HVAC system blower motor not working or climate controls being unresponsive.
- ✔ Vehicle security system acting up, causing no-start conditions or false alarms.
- ✔ Airbag warning light illuminated on the dash, often with DTC B1001.
- ✔ Unexplained battery drain while the vehicle is parked.
The Plug-and-Play Solution for Your 2007-2011 Avalanche BCM
Replacing a BCM used to mean a mandatory trip to the dealership for expensive programming. We eliminate that hassle. This module is expertly programmed to your vehicle’s specific VIN before it ships, ensuring it works correctly right out of the box. This process loads the latest GM software and calibrates the module to your vehicle’s exact options, providing a seamless, plug-and-play installation. No extra tools or dealer visits are required to get your truck back to 100%.
Post-Installation Procedures
While the module is programmed for your VIN, certain vehicle systems may require a simple sync procedure after installation. In most cases, no further action is needed. However, be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light remains on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” function with a professional scan tool. This is a quick procedure that syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation. This can also be done with a capable diagnostic tool.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls your vehicle’s non-engine related electronic functions. This includes power windows, door locks, lighting, wipers, the security system, and the HVAC system.
Is this BCM difficult to install?
No, installation is typically very straightforward. The BCM is located under the driver’s side dashboard, near the steering column. It usually takes less than 15 minutes to swap out with basic hand tools.
Do I need to go to the dealership after installing this part?
No. This module is pre-programmed to your vehicle’s VIN, which eliminates the need for dealership programming. It’s designed to be a plug-and-play replacement.
What if my airbag light is on after installation?
If the airbag light appears, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). A technician can perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool to resolve this.
How do I know this part will fit my vehicle?
This BCM is compatible with a wide range of 2007-2013 GM trucks and SUVs. Please verify your vehicle in the fitment chart and ensure your original part number is listed as an interchange, such as 25971917, 25844480, or 20939137.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any hassle or need to return it.