Restore Control and Reliability to Your GM Truck or SUV
If you’re dealing with bizarre electrical issues in your 2012-2014 Sierra, Silverado, or other GM vehicle, you’re not just imagining things. Flickering lights, power windows with a mind of their own, or a battery that’s constantly drained are classic signs of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable workhorse into a source of daily frustration. It’s the central command center for your vehicle’s comfort and convenience features, and when it fails, chaos ensues.
This isn’t just a replacement part; it’s a complete solution. We take the hassle and high cost out of the equation by pre-programming this BCM specifically to your vehicle’s VIN. No expensive trips to the dealership, no waiting for programming appointments. You provide us with your VIN during checkout, and we handle the rest, loading the latest GM software so it’s ready for installation right out of the box. This is the most efficient way to get a reliable GM Truck BCM Replacement and restore full functionality to your vehicle.
A Technician’s Notebook
I remember a 2013 Sierra 3500 that came into the bay with a laundry list of complaints. The owner said his interior lights would stay on, the radio would randomly shut off, and sometimes the key fob wouldn’t work. He’d already replaced the battery twice. A quick scan showed a dozen communication codes, all pointing back to the BCM. Instead of a complex wiring chase, we installed a VIN-programmed BCM. The difference was immediate. All the ‘ghost’ problems vanished. This module is often the single point of failure for a wide range of electronic gremlins.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ A persistent battery drain that leaves you with a dead battery.
- ✔ Warning lights on the dash, such as the security or airbag light.
- ✔ Key fob not responding or vehicle security system acting erratically.
- ✔ Communication error codes, such as U0140, U0155, or other ‘U’ codes indicating loss of communication with other modules.
A Straightforward Guide to Installation
Installing your new GM Truck BCM Replacement is a manageable job for a DIYer with basic tools. The BCM is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most of these trucks and SUVs, you’ll need to remove the lower dash panel beneath the steering wheel to access the module.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) and test your electronics—windows, locks, lights, and radio.
Important Post-Installation Steps
While this module is programmed for your vehicle, some systems may require a ‘handshake’ procedure after installation. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
- No Core Charge: We make it simple. There is no core charge for this part, so you can keep your original module.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step of the process.
Guaranteed Fitment for Your GM Vehicle
This GM Truck BCM Replacement is a direct-fit solution for a wide range of trucks and SUVs, and is a compatible replacement for part numbers 22737275, 22846365, and 22846364. Please verify your vehicle is on the list below:
- 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
Do I really need to provide my VIN?
Yes, providing your 17-digit VIN is essential. We use it to program the BCM with the correct software and vehicle-specific options, ensuring it works correctly right out of the box.
Is this a plug-and-play part?
For most functions, yes. Because we pre-program it, the core features will work upon installation. However, as noted, certain systems like the airbag or brake position sensor may require a simple relearn procedure with a diagnostic tool.
What tools are needed for the installation?
You’ll typically need a basic socket set and a trim removal tool to access the BCM under the dashboard. No specialized electronic tools are required for the physical installation.
Do I need to send my old BCM back?
No. This product comes with no core charge. You can keep your old part, which saves you the time and money of shipping a core back.
What if my airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically synced with the airbag’s Sensing and Diagnostic Module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key’ procedure to resolve this.