Restore full electrical functionality to your GM truck or SUV with this VIN-programmed Body Control Module (BCM). If you’re battling bizarre electrical issues like flickering lights, malfunctioning power windows, or a stubborn security system, a failing BCM is the most likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of frustrating and hard-to-diagnose problems. This replacement module is the definitive solution, arriving at your door pre-programmed with the latest GM software specifically for your vehicle.
From the Diagnostic Bay
We had a 2013 Silverado 2500 in the shop that was driving the owner crazy. The dash lights would flicker randomly, the radio would cut out, and he kept getting a ‘Service 4WD’ message, even though the four-wheel-drive system checked out perfectly. After hours of chasing wires, we scanned the BCM and found multiple communication fault codes. It turned out the BCM was failing and sending corrupt data across the vehicle’s network, triggering false warnings in other modules. Installing a VIN-programmed BCM like this one solved all the issues in under an hour. It’s a reminder that in modern vehicles, the problem isn’t always where the symptom appears.
Is Your GM Truck or SUV Showing These Symptoms?
A faulty Body Control Module can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Erratic power window and door lock operation.
- ✔ Interior dome lights or exterior lights staying on or not working at all.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent or non-functional windshield wipers.
- ✔ ‘Service Theft System’ or ‘Security’ light illuminated on the dash.
- ✔ False warnings on the driver information center (DIC).
- ✔ Communication issues with diagnostic scan tools.
The Plug-and-Play Solution for Your 2012-2014 Yukon XL BCM
Forget expensive dealership visits and programming fees. Our process is designed to be simple and effective. When you place your order, you provide us with your vehicle’s 17-digit VIN. Our technicians then use that information to flash this module with the correct, vehicle-specific software and the latest updates from General Motors. This ensures that the BCM integrates seamlessly with your truck’s existing systems, including the powertrain control module (PCM), instrument cluster, and security system. It arrives ready for installation, making the repair process straightforward for both DIY mechanics and professional technicians.
Installation and Post-Install Procedures
The BCM is typically located under the driver’s side of the dashboard, near the steering column. Installation involves disconnecting the battery, removing a few trim panels for access, and swapping the electrical connectors from the old module to the new one.
While this module is designed for a simple installation, some vehicles may require additional steps after the part is installed to ensure all systems communicate correctly:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. 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 relearn may be necessary to ensure correct brake light operation and to prevent issues with the traction control or stability control systems.
This module is a direct replacement for part numbers 22846365, 22737275, and 22846364, and fits a wide range of 2012-2014 GM vehicles including the Sierra, Silverado, Escalade, Suburban, Tahoe, and Avalanche.
Frequently Asked Questions
Why do you need my VIN to program the BCM?
Your vehicle’s VIN (Vehicle Identification Number) allows us to load the exact software and calibrations your truck or SUV was built with. This ensures all features, from power windows to the specific type of lighting, work correctly without any additional programming required from a dealer.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the physical installation is straightforward. The BCM is usually located under the dash and held in by a few bolts or clips. The main challenge can be accessing it. The most important part is ensuring the battery is disconnected before you begin.
What happens if the airbag light comes on after I install it?
If the airbag light illuminates, it simply means the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A repair shop with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
Will this fix my intermittent ‘Service 4WD’ message?
It can. A failing BCM can disrupt communication on the vehicle’s data network, causing other modules, like the transfer case control module, to report false errors. If you have other electrical symptoms along with the 4WD message, a faulty BCM is a strong possibility.