Restore Full Electrical Function to Your GM Truck or SUV
Are you battling bizarre and frustrating electrical problems in your truck? Flickering lights, unresponsive power windows, a malfunctioning security system, or an HVAC system with a mind of its own 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 cause a cascade of confusing issues. This genuine OEM-quality GM Body Control Module, interchangeable with part number 15263363, is the definitive solution for your 2007-2013 GMC Sierra, Chevrolet Silverado, Tahoe, Suburban, and other compatible GM vehicles.
The Plug-and-Play Solution: Pre-Programmed to Your VIN
Forget expensive dealership visits and complex programming procedures. We take the hassle out of the repair by programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that it integrates seamlessly with your truck’s existing systems right out of the box. It arrives ready for a quick, straightforward installation, restoring all functions to factory specifications without the need for a specialized scan tool for initial setup.
From the Diagnostic Bay
We had a 2011 Sierra 2500 in the shop that was driving its owner crazy. The radio would turn off randomly, the driver’s side power lock wouldn’t work, and the A/C blower was intermittent. The owner had already replaced the battery and checked all the fuses. After a quick scan, we saw multiple communication codes pointing to the BCM. Instead of spending hours chasing phantom wiring issues, we installed a VIN-programmed module. In less than 15 minutes, every single issue was resolved. It’s a powerful reminder that sometimes the most complex-seeming electrical gremlins have a simple, central cause.
Common Symptoms of a Failing GMC Sierra BCM
- ✔ Intermittent or non-functional power windows, door locks, or interior/exterior lights.
- ✔ HVAC system problems, such as the blower motor not working or temperature controls being unresponsive.
- ✔ The security system acting erratically, causing no-start conditions or the alarm to go off randomly.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Unexplained battery drain while the vehicle is parked.
- ✔ Communication errors with other modules on the vehicle’s data network.
- ✔ Wipers that won’t turn on, off, or operate at the correct speed.
Installation and Required Procedures
Physically replacing the BCM is a simple job for any DIY mechanic. It’s typically located under the driver’s side dashboard, near the steering column, and is held in place by a few clips or bolts. The entire swap can often be completed in under 10 minutes with basic hand tools.
While our VIN programming handles the primary setup, some vehicles may require a couple of simple relearn procedures after installation:
- Airbag System Sync: If the airbag warning light remains on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This is not a programming step but a security handshake between the new BCM and the existing airbag module. This must be done with a professional-grade diagnostic tool that has this specific function under the BCM or special functions menu.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure the brake lights and stability control systems function correctly. This is also performed with a capable scan tool.
Note: Always disconnect the negative battery terminal before beginning any work on your vehicle’s electrical system.
Guaranteed Compatibility and Reliability
This module is built to strict OEM standards, ensuring long-lasting performance and durability. It is a direct replacement for a wide range of part numbers, ensuring a perfect fit and function for your vehicle. There is no core charge, so you can keep your old part without the hassle of returning it. Restore your vehicle’s functionality and peace of mind with a reliable, pre-programmed BCM.
Interchangeable Part Numbers: 25844480, 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, 22860591.
Frequently Asked Questions
Is this Body Control Module truly plug-and-play?
Yes, for the vast majority of functions. We pre-program it with your vehicle’s VIN so it works immediately upon installation. In some cases, a security relearn for the airbag system may be required using a scan tool if the airbag light is on.
Do I need to send my old BCM back?
No. There is no core charge or requirement to return your original module. You can keep it or dispose of it at your convenience.
Where is the BCM located on my 2013 Sierra 3500?
The Body Control Module is typically found under the driver’s side dashboard, to the left of the steering column. It is usually accessible after removing the lower dash panel.
What tools are needed for installation?
Basic hand tools like a socket set and a trim panel removal tool are usually all that’s required for the physical installation. A professional scan tool may be needed for post-installation procedures like the airbag system sync.
My airbag light is on after installing the new BCM. What should I do?
This is normal in some vehicles. You will need to have a technician perform the ‘Setup SDM Primary Key in BCM’ procedure with a capable diagnostic tool to sync the new BCM with your vehicle’s airbag system and turn off the light.
How do I ensure this is the correct part for my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs. The best way to confirm is to match your original part number to one of the numbers listed in our description. If you’re unsure, please contact us with your VIN before ordering.