Is Your GM Truck or SUV Plagued by Electrical Gremlins?
There’s nothing more frustrating than a dependable truck that suddenly becomes unreliable. One minute your Sierra is the workhorse you count on, the next, the power windows won’t work, the dash lights are a Christmas tree, or it won’t even start. These baffling electrical issues often point to one culprit: a failing Body Control Module (BCM). This module is the central nervous system for your vehicle’s accessories and security, and when it fails, it can cause chaos. Get back in control with this direct-fit, pre-programmed BCM and restore the dependable performance your vehicle is known for.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty BCM is the likely cause. This pre-programmed module is the definitive solution to get your truck or SUV back to 100%.
- Intermittent or non-functional power windows, door locks, or interior lights.
- Erratic instrument cluster behavior or warning lights (e.g., Service StabiliTrak, Airbag light).
- The security system preventing the engine from starting.
- Communication error codes (U-codes) when scanned with a diagnostic tool.
- Headlights or taillights staying on or not working at all.
This 2012-2014 Sierra 3500 BCM is the reliable, straightforward fix you need. We take the guesswork and high costs out of the equation by programming the module to your vehicle’s specific VIN before it ever leaves our facility.
Features & Benefits
- โ VIN Programmed, Ready to Install: We flash this module with the latest GM software updates using your vehicle’s VIN. This eliminates the need for expensive programming tools or a trip to the dealership, saving you time and money.
- โ Restores Full Functionality: Get your power accessories, lighting, and security systems working exactly as they did from the factory.
- โ Direct-Fit Replacement: Engineered to be a perfect match for the original part, ensuring a seamless installation process. This module replaces part numbers 22737275, 22846365, and 22846364.
- โ No Core Charge: Keep your original module. There’s no need to worry about the cost or hassle of sending a core back to us.
- โ This unit is backed by our one-year replacement warranty.
An Expert’s Note on BCM Replacement
As a technician, I’ve seen many owners try to save a few dollars by installing a used BCM from a salvage yard. This almost always leads to more problems. A used module is programmed to a different vehicle’s VIN and options package, causing immediate compatibility issues, from non-working features to a no-start condition. Our process of pre-programming this 2012-2014 Sierra 3500 BCM specifically to your truck ensures it integrates perfectly with your vehicle’s existing systems, just like the original part, but with the latest software updates for improved performance.
Important Post-Installation Information
To ensure a smooth process, please be aware of these potential post-installation procedures. While not always required, they are a normal part of replacing a modern vehicle computer.
- Airbag System Sync: If the airbag warning light is on 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.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control operation.
We always recommend consulting a factory service manual or a qualified technician if you are unsure about any part of the installation.
Guaranteed Vehicle Fitment
This BCM is a direct replacement for the following vehicles:
- AVALANCHE 1500: 2012-2013
- ESCALADE & ESCALADE ESV: 2012-2014
- ESCALADE EXT: 2012-2013
- SIERRA 1500 & SIERRA DENALI 1500: 2012-2013
- SIERRA 2500/3500 & SIERRA DENALI 2500/3500: 2012-2014
- SILVERADO 1500: 2012-2013
- SILVERADO 2500/3500: 2012-2014
- SUBURBAN 1500: 2012-2014
- SUBURBAN 2500: 2012-2013
- TAHOE: 2012-2014
- YUKON & YUKON XL 1500: 2012-2014
- YUKON XL 2500: 2012-2013
After purchase, simply provide us with your VIN, and we’ll handle the programming for your specific 2012-2014 Sierra 3500 BCM or other compatible model.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide range of non-engine-related functions. This includes power windows, door locks, interior and exterior lighting, the security system, and the instrument cluster.
How do I know if my BCM is failing?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once. This can be anything from erratic power accessories and flickering lights to security system faults that prevent the vehicle from starting. A professional diagnosis with a scan tool can confirm the failure.
Is this part difficult to install?
The physical installation is typically straightforward for someone with moderate mechanical skill. The BCM is usually located under the steering column. The main benefit of our product is that the complex programming is already done, making the process much simpler than a standard replacement.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and vehicle-specific options (like power seats, sunroof, etc.) that your truck or SUV came with from the factory. This ensures seamless integration and proper function of all features.
What happens if the airbag light comes on after installation?
This is a normal security measure. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A qualified technician with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Will this fix my specific problem?
This BCM will fix issues directly caused by a faulty module. While the symptoms listed are strong indicators, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before ordering.