Restore Full Functionality to Your GM Truck or SUV
Is your Chevrolet Avalanche, Silverado, or GMC Sierra plagued by frustrating electrical issues? Randomly flashing lights, malfunctioning power windows, or a security system that has a mind of its own are common indicators of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of seemingly unrelated problems. This replacement Body Control Module, part number 22846365, is the definitive solution to restore order and reliability to your vehicle’s essential functions.
Unlike a standard part from a dealership or salvage yard, this BCM arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the module communicates flawlessly with your truck’s existing systems and recognizes all of its factory-installed options. By providing us with your VIN during checkout, you eliminate the need for an expensive trip to the dealership for programming, saving you significant time, money, and the hassle of a tow bill.
Common Symptoms of a Failing 2012-2013 Avalanche BCM
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following issues, a failing Body Control Module is the most likely cause. A proper diagnosis with a professional scan tool can confirm the issue, often revealing communication error codes (U-codes) with various modules.
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior dome lights, headlights, or taillights staying on, flickering, or failing to turn on.
- ✔ The horn sounding randomly or not working when pressed.
- ✔ Intermittent or constant warning lights on the dashboard, such as for the security or airbag systems.
- ✔ Key fob failing to lock/unlock doors or activate the remote start.
- ✔ The vehicle’s anti-theft or security system preventing the engine from starting.
- ✔ Climate control and radio display malfunctions.
The Plug-and-Play Advantage: VIN Programming Included
The single biggest challenge when replacing a modern vehicle module is programming. This BCM is a direct-fit replacement for part numbers 22846365, 22737275, and 22846364, and we handle the complex part for you. We flash the module with the latest GM software updates and configure it specifically for your truck using the VIN you provide. This ensures a seamless integration, allowing the module to correctly manage features like power seats, lighting packages, and security settings unique to your vehicle.
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 installation is straightforward—disconnect the battery, unplug the old module’s electrical connectors, and plug in the new one—some electronic ‘handshake’ procedures may be necessary after installation.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag’s Sensing and Diagnostic Module (SDM) and must be performed with a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper operation of brake lights and the vehicle’s stability control system.
These procedures are common for BCM replacements and can be performed by any competent automotive shop or a DIYer with an advanced scan tool.
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, the security system, and interior accessories.
Is this BCM ready to install when I receive it?
Yes! We program the module to your vehicle’s VIN before shipping. This means it’s ready for physical installation. However, as with any BCM replacement, you may need to perform a couple of simple relearn procedures (like for the airbag or brake pedal sensor) with a scan tool after it’s installed.
Where is the BCM located on my 2012-2014 GM truck?
The BCM is typically found under the driver’s side dashboard, often attached to or near the steering column support.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after I install the new BCM?
This is a normal possibility. It means the new BCM needs to be electronically introduced to the airbag system. A technician with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
Will this part fit my 2014 Silverado 2500?
Yes, this BCM fits a wide range of 2012-2014 GM trucks and SUVs, including the Silverado 2500/3500, Sierra 2500/3500, Tahoe, Suburban, Yukon, and Escalade. Please verify your part number or consult the full fitment list.