Restore Full Electrical Function to Your GM Truck or SUV
Are you experiencing a cascade of frustrating electrical problems in your Chevrolet Silverado, GMC Sierra, or Cadillac Escalade? Intermittent wipers, malfunctioning power windows, a dead HVAC system, or a persistent airbag light are common signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it fails, it can make your vehicle unreliable and unsafe. This genuine quality GM Body Control Module, part number 15263363, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
From the Diagnostic Bay
We had a 2009 Silverado 2500 in the shop that was a real head-scratcher. The owner had already replaced the blower motor resistor twice, and the HVAC controls would still cut out randomly. On top of that, the passenger side power lock was inoperative. Instead of continuing to chase individual component failures, we scanned the network and found multiple communication loss codes pointing to the BCM. A failing GM Body Control Module was creating phantom issues across the vehicle. Installing a VIN-programmed module like this one resolved all the issues in under 10 minutes, saving the customer from further expensive and incorrect repairs.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or interior/exterior lights working intermittently or not at all.
- ✔ HVAC system failure, including unresponsive controls or a blower motor that won’t turn on.
- ✔ The security system engaging randomly, preventing the vehicle from starting.
- ✔ An illuminated airbag warning light, often with DTC B1001 (SDM Mismatch).
- ✔ Unexplained battery drain or other bizarre electrical behavior.
- ✔ Communication errors with other vehicle modules, leading to various diagnostic trouble codes.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the repair by programming the module with the latest GM software updates matched directly to your VIN. This ensures all factory-installed options work correctly from the moment you plug it in, eliminating the need for a costly trip to the dealership for programming.
Key Features & Post-Installation Procedures
- ✔ VIN Programmed for Your Vehicle: Ensures seamless integration and functionality of all systems without any additional setup.
- ✔ Restores Vehicle Functions: Corrects issues with lighting, security, power accessories, and climate control.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for lasting reliability and performance.
- ✔ No Core Charge: Keep your old part, saving you time and the hassle of a core return.
While installation is simple, be aware of potential post-install steps. If the airbag light appears, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. Additionally, some models may require a Brake Pedal Position Relearn procedure. Always consult a service manual or professional for guidance if you are unsure.
Frequently Asked Questions
What does a Body Control Module do on a GM truck?
The BCM is a computer that manages and controls many of the vehicle’s non-engine related functions, such as power windows, door locks, interior and exterior lighting, wipers, the security system, and the HVAC system.
Is this module ready to install right out of the box?
Yes. We pre-program the module to your vehicle’s VIN before shipping. This makes the installation plug-and-play, with no need for additional dealership programming.
What if my airbag light stays on after installing the new BCM?
This is a common security feature. You will need a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the new BCM with your vehicle’s airbag system.
Where is the BCM located on a Silverado or Sierra?
The Body Control Module is typically located under the driver’s side of the dashboard, near the steering column. Installation usually takes only a few minutes.
Do I have to send my old part back?
No, there is absolutely no core charge for this part. You can keep your original module without any extra fees.