If you’re dealing with a frustrating array of electrical problems in your GM truck or SUV, you’ve come to the right place. From flickering lights and a malfunctioning climate control system to a vehicle that won’t start, the Body Control Module (BCM) is often the hidden culprit. As a technician with over two decades of experience, I’ve seen how a single failing BCM can mimic a dozen different problems, leading to diagnostic headaches. This OEM-quality Body Control Module, part number 15926094, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
A Technician’s Notebook: The Ghost in the Machine
A customer brought in his 2011 Sierra 2500 with a bizarre list of complaints: the radio would cut out, the driver’s side power window worked intermittently, and the airbag light was on. He’d already replaced the battery and checked fuses with no luck. After connecting my scanner, I saw a handful of communication codes and a specific DTC B1001. Rather than chasing each symptom individually, experience pointed me straight to the BCM. These modules are the nerve center for body functions, and when they fail internally, they send chaotic signals. We installed a VIN-programmed BCM, and in under 10 minutes, every single issue was resolved. This is a classic example of how the right part saves hours of diagnostic time.
Is Your GM Truck Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Inoperative or erratic power windows, door locks, or interior lights.
- ✔ Airbag warning light illuminated, often with DTC B1001 stored in the system.
- ✔ Complete loss of HVAC controls or a blower motor that won’t turn on or off.
- ✔ The security system preventing the vehicle from starting or causing random stalling.
- ✔ Unpredictable electrical behavior, such as wipers turning on by themselves.
- ✔ A cluster of communication-related Diagnostic Trouble Codes (DTCs).
Plug-and-Play Installation: Get Back on the Road Fast
One of the greatest benefits of this module is its simplicity. Because we program it to your VIN before shipping, you can skip the expensive trip to the dealership for programming. Installation is a straightforward process that most DIYers can complete in their driveway.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most compatible models, you’ll find the BCM located under the driver’s side of the dashboard, near the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, remove the old BCM.
- Install the New Module: Seat the new BCM in place and firmly reconnect all electrical connectors. You’ll hear a click as they lock.
- Reconnect Power: Reattach the negative battery terminal. Your truck’s core functions should now be restored.
Post-Installation Note: In some cases, particularly if you had an airbag light on, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a bi-directional scan tool. This syncs the new BCM with the airbag system. Additionally, a Brake Pedal Position relearn may be required on some models. These are simple procedures for any professional shop if needed.
Will This Fit My Truck or SUV?
This module is a direct replacement for part number 15926094 and interchanges with several other part numbers, including 25835966, 20939137, and 22860591. It provides guaranteed fitment for a wide range of 2007-2013 General Motors vehicles. Please verify your model and year from the list below:
Note: For 2007 models, this fits the ‘new style’ with a smooth door skin. For some 2010 and 2013 models, please verify ID 25835966.
Frequently Asked Questions About the 2013 Silverado 2500 BCM
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s specific VIN before it ships. This allows for a direct, plug-and-play installation without any need for dealership tools or fees.
Is there a core charge for this part?
There is absolutely no core charge. You are not required to send your old, faulty module back to us, saving you time and shipping costs.
How difficult is the installation?
The physical installation is very simple and typically takes less than 15 minutes. It involves unplugging the old module from under the dashboard and plugging the new one in. No special tools are required for the replacement itself.
My airbag light is on. Will this fix it?
Yes, this BCM will resolve issues causing an airbag light, especially DTC B1001. However, after installation, a ‘Setup SDM Primary Key’ procedure may be needed using a professional scan tool to clear the light by syncing the modules.
What is the warranty on this module?
This Body Control Module is backed by our comprehensive one-year warranty, giving you peace of mind and confidence in your repair.