Restore Full Control and Eliminate Electrical Gremlins
Are you dealing with baffling electrical issues in your GM truck or SUV? Flickering lights, malfunctioning power windows, a horn that won’t quit, or a persistent ‘Service StabiliTrak’ warning can all point to one culprit: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, a faulty BCM can create a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can affect safety systems and leave you stranded. Stop chasing symptoms and replace the core component with a reliable, pre-programmed solution.
This is a direct-fit replacement BCM for your vehicle. The best part? We handle the complicated part for you. Simply provide your vehicle’s VIN at checkout, and our technicians will program the module with the latest GM software specific to your truck’s configuration. This means no expensive trips to the dealership for programming. It arrives at your door ready for installation, saving you time, money, and headaches.
From the Diagnostic Bay
I remember a 2013 Silverado 2500 that came into my shop with a laundry list of complaints. The owner said the radio would change stations on its own, the dome light would stay on, and occasionally, the truck wouldn’t recognize the key fob. He’d already replaced the battery and checked fuses. After hooking up my scan tool, I saw a dozen communication error codes (U-codes) pointing to the BCM. These modules are notorious for internal circuit board failures that cause these exact kinds of phantom issues. We installed a VIN-programmed BCM, and it was like giving the truck a new brain. All the strange electrical behavior vanished instantly. It’s a fix I’ve performed hundreds of times on these GM platforms.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security system acting up, causing no-start conditions.
- ✔ Horn blaring or going off randomly.
- ✔ Warning lights on the dash, such as for the airbag or traction control system.
- ✔ Communication error codes, especially U-codes (e.g., U0100, U0140).
- ✔ Wipers turning on by themselves or not working when commanded.
A Straightforward Guide to Installation
Replacing the BCM is a manageable job for a confident DIYer. The module is located under the driver’s side of the dashboard, near the steering column. While our pre-programming handles the software, some vehicles may require a final relearn procedure. Here is a general guide:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: Remove the lower dash panel beneath the steering wheel to gain access to the BCM. It’s typically a black box with several large electrical connectors.
- Document Connections: Take a quick photo of the connector layout before you begin. This can be a helpful reference during reassembly.
- Swap the BCM: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Unbolt the old module, install the new one in its place, and securely reconnect all connectors.
- Power Up: Reinstall the dash panel and reconnect the negative battery terminal.
- Post-Installation Steps: Start the vehicle. In many cases, you’re all set. However, please review the important post-installation procedures below.
Important Post-Installation Information
Because this 2012-2014 Silverado 2500 BCM integrates with critical safety systems, some vehicles may require a final handshake with other modules after installation. This is normal and ensures everything communicates correctly.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade diagnostic tool. This 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 also requires a capable scan tool.
- No Core Charge: You are not required to return your old module. Keep it, discard it—the choice is yours.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for reference or consult with a qualified technician if you are unsure about any step.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part numbers 22846365, 22737275, and 22846364 and fits a wide range of GM trucks and SUVs. Please verify your vehicle is on this list:
- Cadillac Escalade / ESV / EXT: 2012-2014
- Chevrolet Avalanche 1500: 2012-2013
- Chevrolet Silverado 1500 / 2500 / 3500: 2012-2014
- Chevrolet Suburban 1500 / 2500: 2012-2014
- Chevrolet Tahoe: 2012-2014
- GMC Sierra 1500 / 2500 / 3500 (including Denali): 2012-2014
- GMC Yukon / Yukon XL (including Denali): 2012-2014
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows our technicians to program the BCM with the exact software and calibrations your specific vehicle requires. This ensures all features, from power windows to the specific axle ratio, work correctly right out of the box.
Is this a difficult part to replace myself?
The physical replacement is straightforward for most DIYers with basic tools. It involves removing a dash panel and swapping the module. The key is being aware that some vehicles may require post-installation relearn procedures with a scan tool, as mentioned in the description.
What is a BCM and what does it do?
The BCM, or Body Control Module, is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like lights, windows, locks, wipers, the security system, and more.
Will this fix my ‘Service StabiliTrak’ warning?
A failing BCM is a very common cause of this warning, as it disrupts communication with the traction control system. While other issues can cause this light, if it’s accompanied by other electrical symptoms, replacing the 2012-2014 Silverado 2500 BCM is a very likely fix.
Is there a core charge for this part?
No. We do not require you to send your old BCM back. There is no core charge or deposit associated with this purchase.