Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical issues in your Chevrolet Silverado, GMC Sierra, or Cadillac Escalade? A failing Body Control Module (BCM) is often the culprit behind a host of problems, from flickering lights and unresponsive power windows to a malfunctioning security system. This genuine GM Body Control Module, interchangeable with part number 15263363, is the definitive solution. As the central command center for your vehicle’s body electronics, replacing a faulty BCM restores the reliable operation you depend on every day.
From the Diagnostic Bay
We had a 2009 Sierra 2500 in the shop that was driving the owner crazy. The dome lights would stay on, the radio would cut out intermittently, and the driver’s side power window had a mind of its own. The owner had already replaced the battery and checked fuses with no luck. After scanning, we found several communication loss codes pointing to the BCM. A quick check under the dash revealed minor corrosion on a nearby grounding point. We replaced the faulty BCM with a VIN-programmed unit like this one and cleaned the ground connection. The truck’s electrical system was immediately stable, and all functions returned to normal. It’s a perfect example of how a failing GM Body Control Module can create widespread issues, and why checking your grounds during the swap is critical.
Symptoms of a Failing BCM
- ✔ Intermittent or non-working interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ HVAC blower motor or climate controls failing to respond.
- ✔ Airbag warning light illuminated, often with DTC B1001.
- ✔ Vehicle security system malfunctions, causing no-start conditions.
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ Wipers behaving erratically or not parking correctly.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We pre-program the module to your vehicle’s specific VIN, ensuring it communicates flawlessly with all other onboard systems right out of the box. This eliminates the need for expensive trips to the dealership for additional programming, saving you time and money. Built to strict OEM standards, this module provides a dependable, long-term fix for your vehicle’s electrical problems.
Key Features & Benefits
- ✔ Plug-and-Play Installation: Arrives programmed to your VIN for immediate installation without the need for a dealer visit.
- ✔ Restores Full Functionality: Corrects common issues with lights, locks, windows, HVAC, and security systems.
- ✔ OEM Quality & Reliability: Engineered to meet or exceed original equipment specifications for lasting performance.
- ✔ No Core Charge: Keep your old part without any additional fees or hassle.
- ✔ Wide Compatibility: Direct replacement for a range of part numbers including 25844480, 25835966, 15263497, and more.
Installation & Post-Install Notes
The BCM is typically located under the driver’s side dashboard, near the steering column, making for a straightforward replacement. In most cases, the process takes only a few minutes. However, please be aware of potential post-installation procedures. If the airbag warning light remains on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure using a professional scan tool. Additionally, some models may require a Brake Pedal Position Sensor relearn to ensure proper brake light and traction control operation.
Frequently Asked Questions
What does a Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, door locks, interior/exterior lighting, wipers, the security system, and HVAC controls.
Is this BCM ready to install out of the box?
Yes. We pre-program each module to your vehicle’s specific VIN before shipping. This ensures it works correctly upon installation without requiring any additional programming from a dealership.
Where is the BCM located on my 2008 Silverado?
On most 2007-2013 GM trucks and SUVs, including the Silverado, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
My airbag light is on after installing the new BCM. What should I do?
This is a common security measure. The new BCM needs to be synced with the airbag system’s SDM. A qualified technician must perform the “Setup SDM Primary Key in BCM” procedure with a professional diagnostic tool to clear the light.
Do I need to send my old part back?
No. We do not require a core return for this part. You can keep or dispose of your original module without any core charge.