Is Your GM Truck Experiencing Strange Electrical Problems?
If your 2012-2014 GM truck or SUV is acting possessed—with flickering lights, malfunctioning power windows, or a security system that has a mind of its own—the culprit is often a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, managing everything from your interior lights and power locks to your wipers and horn. When it starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues, making your reliable truck feel unpredictable.
Symptoms of a Failing Body Control Module
- ✔️ Power windows, mirrors, or door locks working intermittently or not at all.
- ✔️ Interior or exterior lights (headlights, dome lights, dash lights) staying on, flickering, or not turning on.
- ✔️ The vehicle’s security system engaging randomly or preventing the engine from starting.
- ✔️ Horn honking unexpectedly or not working when pressed.
- ✔️ Windshield wipers behaving erratically (e.g., won’t turn off).
- ✔️ A persistent battery drain that kills your battery, even when the vehicle is off.
- ✔️ False warning lights appearing on the instrument cluster.
The Simple, Dealer-Free Solution: A VIN-Programmed BCM
Don’t waste time and money at the dealership for a lengthy diagnostic and programming session. We offer a direct, effective solution. This Body Control Module, compatible with part numbers 22846364, 22737275, and 22846365, is the answer. The critical difference? We program it specifically for your truck before it ships. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest GM software updates tailored to your exact vehicle configuration. This ensures a seamless installation process, restoring your truck’s functionality right out of the box.
Why Choose Our 2012-2013 Sierra BCM?
This isn’t just a replacement part; it’s a complete restoration of your vehicle’s electronic nervous system. By installing our pre-programmed 2012-2013 Sierra BCM, you are bypassing the most complicated part of the repair. The module arrives ready for installation, located conveniently under the steering column. For many owners, this is a straightforward DIY job that restores full functionality without the need for specialized, expensive scan tools for programming.
Installation and Post-Install Steps
Installation is as simple as locating your old BCM under the driver’s side dash, disconnecting the battery, swapping the electrical connectors to the new module, and reconnecting the battery. However, on these complex vehicles, a couple of additional steps may be required:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a “Setup SDM Primary Key in BCM” procedure is needed. This syncs the new BCM with the airbag system and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration might be necessary to ensure proper operation of brake lights and stability control systems.
Best of all, there is no core charge. You can keep your old module without the hassle of shipping it back.
Frequently Asked Questions
What does a Body Control Module (BCM) actually do?
The BCM is a computer that supervises and controls functions related to the vehicle’s body, not the engine. This includes power windows, locks, lights, wipers, security system, and other comfort and convenience features. It’s the brain behind your truck’s accessories.
Do I need to get this BCM programmed by a dealer?
No. The main benefit of our service is that we program the BCM to your vehicle’s specific VIN before we ship it. This means it’s ready for installation upon arrival, saving you a costly trip to the dealership.
Where is the BCM located on my 2012-2013 Sierra or Silverado?
The Body Control Module is typically located under the driver’s side of the dashboard, near the steering column. It’s a black box with multiple large electrical connectors.
What happens if my airbag light comes on after I install it?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag’s computer (SDM). A mechanic with a high-level scan tool can perform the “Setup SDM Primary Key in BCM” procedure to sync the modules and turn off the light.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as it is essential for programming the module correctly.
Does this part fit other vehicles besides the Sierra 1500?
Yes, this BCM has a wide range of compatibility across the GM truck and SUV lineup from approximately 2012-2014, including the Silverado, Tahoe, Suburban, Yukon, Escalade, and Avalanche. Please check the detailed fitment list on this page to confirm for your specific model.