Is Your GM Truck or SUV Plagued by Electrical Gremlins?
The Body Control Module (BCM) is the central command center for your vehicle’s body electronics. It manages everything from your power windows and door locks to the interior lights and security system. When the BCM starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. If you’re tired of chasing electrical problems, you’ve come to the right place. This is a direct replacement, VIN-programmed Body Control Module for a wide range of 2012-2014 GM trucks and SUVs, including the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and Escalade.
From the Diagnostic Bay
We had a 2013 Sierra 1500 in the shop that was driving the owner crazy. The battery would be dead every morning. He’d already replaced the battery and alternator, but the problem persisted. After hours of diagnostics, we traced a parasitic draw to the BCM—it was keeping the courtesy light circuit active even when the truck was off. A simple swap with a pre-programmed BCM like this one solved the issue instantly, saving the customer from further diagnostic headaches and the cost of a new battery.
Common Symptoms of a Failing Silverado 1500 BCM
A faulty BCM can manifest in numerous ways. If your vehicle is experiencing any of the following, a failing Body Control Module is a likely culprit:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, not turning on, or flickering.
- ✔ The security system acting erratically or preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Inaccurate readings on the instrument cluster or warning lights that won’t turn off.
- ✔ Remote keyless entry (RKE) failing to work.
- ✔ Communication errors with other modules when scanned with a diagnostic tool.
The Simple, Reliable Solution: VIN Programmed & Ready to Install
Don’t waste time and money at the dealership. We take the hassle out of BCM replacement. When you order from us, you provide your vehicle’s VIN, and we program the module with the latest GM software updates specific to your truck or SUV. This ensures that the module communicates perfectly with your vehicle’s existing systems right out of the box. This is not a simple repair service; it is a fully functional replacement part, tested for performance and reliability.
Installation and Post-Install Procedures
The BCM is typically located under the driver’s side of the dashboard, near the steering column. While the physical replacement is straightforward for a DIYer with basic tools, some electronic procedures may be necessary after installation to ensure full system functionality.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool must be used to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required. This ensures the brake lights and traction control systems function correctly with the new module.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls and monitors most of your vehicle’s non-engine-related electronic functions. This includes power windows, locks, lights, wipers, security system, and the instrument panel.
Why do you need my VIN number?
We use your Vehicle Identification Number (VIN) to load the exact software and calibrations for your specific vehicle’s options and features. This makes the installation process as close to plug-and-play as possible and avoids a costly trip to the dealer for programming.
Is this a difficult part to install?
The physical installation is generally simple, requiring basic hand tools to access the module under the dashboard. However, some post-installation electronic relearn procedures, like an airbag system sync, may require a professional-grade scan tool.
Will this part fit my vehicle?
This module fits a wide range of 2012-2014 GM trucks and SUVs and is a direct replacement for part numbers 22737275, 22846365, and 22846364. Please verify the part number and consult the detailed fitment list on this page to confirm compatibility.
What if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag system module (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a compatible high-end scan tool to resolve this.