Is Your GM Truck Plagued by Electrical Gremlins?
If you’re dealing with bizarre and unpredictable electrical issues in your 2012-2014 GM truck or SUV, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your vehicle’s body electronics, managing everything from your power windows and door locks to your interior lighting and security system. When it starts to fail, it can create a cascade of frustrating problems that seem completely unrelated.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system engaging randomly or the key fob not working correctly.
- ✔ Warning lights for ABS, airbags, or traction control appearing on the dash for no reason.
- ✔ The radio or infotainment system behaving erratically.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
From the Diagnostic Bay
We had a 2013 Silverado 2500 come into the shop with a classic ‘haunted truck’ complaint. The dome lights would flicker while driving, the driver’s side power window would only work sometimes, and the battery would be dead every few days. The owner had already replaced the battery and alternator with no luck. After hooking up our diagnostic tool, we saw multiple communication errors pointing towards the BCM. Instead of a dozen small problems, it was one central failure. We installed a VIN-programmed BCM, and instantly, all the ghost-like issues vanished. It’s a perfect example of how this single module can restore sanity to your vehicle’s complex electrical system.
The Direct-Fit, Programmed Solution for Your Truck
Don’t let a faulty BCM keep your truck off the road or drive you crazy. This replacement Body Control Module, part number 22846365 (also compatible with 22737275 and 22846364), is the definitive solution. We take the guesswork and dealership hassle out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your truck’s configuration. This ensures a seamless installation and proper function of all your vehicle’s features right out of the box.
Why Choose a Pre-Programmed Module?
Getting a new BCM from a dealership means paying for the part, paying for labor, and then paying for several hours of programming time. Our process simplifies this dramatically. You receive a module that is ready for installation, saving you significant time and money. For many owners, this is a straightforward DIY job located under the steering column, getting you back on the road faster.
Installation and Post-Install Considerations for your 2012-2014 Sierra BCM
Installation is typically straightforward, as the BCM is located under the driver’s side dashboard. However, on modern vehicles, replacing a central computer like the BCM can require a few final handshake procedures with other modules. Depending on your specific vehicle, you may need a professional scan tool to perform the following:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be required to ensure proper brake light and traction control functionality.
We believe in transparency, and while many installations require no extra steps, it’s important to be aware of these possibilities. And the best part? There is no core charge. You can keep your old module without the hassle of shipping it back.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and more.
How do I know if my BCM is the problem?
Common signs include multiple, unrelated electrical issues happening at once, such as erratic lights, failing power accessories (windows/locks), and false warning indicators on your dashboard. A professional diagnostic scan can confirm the fault.
Why do you need my VIN number?
Your vehicle’s VIN allows us to program the BCM with the exact software and settings for your specific model, year, and options package. This ensures all features work correctly and makes installation as simple as possible.
Is this part difficult to install?
For someone with moderate mechanical skill, the physical installation is not difficult, as the BCM is usually located under the steering column. However, some post-installation electronic procedures, like an airbag sync, may require a professional-grade scan tool.
What if my airbag light is on after I install this BCM?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag module (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a compatible scan tool to resolve this and turn off the light.