Tired of Electrical Gremlins in Your GM Vehicle?
If you’re dealing with bizarre and frustrating electrical issues in your 2012 Chevy Equinox or another compatible GM model, a failing Body Control Module (BCM) is often the culprit. As the central nervous system for your vehicle’s comfort and convenience features, a faulty BCM can cause a cascade of problems that seem unrelated, from flickering lights and malfunctioning power windows to a car that won’t start. This isn’t just an annoyance; it’s a disruption to your daily life. Dealerships often charge a small fortune for a new module plus hundreds more for programming. Our service provides a reliable and affordable solution.
A Technician’s Notebook: The Case of the Haunted Equinox
I remember a 2012 Equinox that came into my shop with a list of symptoms that sounded like something out of a horror movie. The owner said the dome lights would randomly turn on while driving, the radio would shut off, and sometimes the power locks would cycle on their own. He’d already replaced the battery and checked the main grounds. After connecting my diagnostic scanner, I saw multiple ‘Loss of Communication’ codes (U-codes) with various modules. This is a classic sign. The issue wasn’t the individual components; it was the central hub that controls them. The BCM was failing, causing data corruption on the CAN bus network. By providing a cloned 2012 Equinox BCM, we restored communication between all the modules and eliminated every single phantom issue, saving the customer over $700 compared to the dealership’s quote.
How Our Simple Mail-In Cloning Service Works
We make this repair process straightforward. Instead of you needing an expensive diagnostic tool for programming, we handle it all. After you purchase, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, our expert technicians will extract the unique vehicle data—including key information, security settings, and specific options—and transfer it directly to this replacement unit. We then ship the fully programmed module back to you, ready for installation. This cloning process ensures a seamless, plug-and-play experience, making it the perfect solution for both DIY enthusiasts and professional repair shops.
Common Signs of a Failing BCM
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not working correctly.
- ✔ The anti-theft or security system light is on, preventing the engine from starting.
- ✔ The horn honking unexpectedly or the alarm going off randomly.
- ✔ Multiple communication error codes, such as U0100, U0140, or other U-series DTCs.
- ✔ Wipers behaving erratically or not parking in the correct position.
A Straightforward Guide to Your BCM Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On the 2012 Equinox, the BCM is typically found on the left (driver’s) side of the dash, often behind the lower trim panel or near the fuse box. Consult a service manual for your specific model’s exact location.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove any bolts or clips holding the module in place.
- ✔ Install the New Module: Mount your pre-programmed replacement BCM and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock in.
- ✔ Reconnect Power: Reattach the negative battery terminal.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Please see the post-installation notes below for potential relearn procedures that may be required.
Important Post-Installation Procedures
While our programming handles the critical data, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM is a direct replacement for part numbers 13580696, 123589093, 13588446, 13584692, and 13583542 and is guaranteed to fit the following models:
- 2012 Buick Regal (LH dash)
- 2012-2013 Buick LaCrosse (LH kick panel, ID 13580696)
- 2012 Buick Verano (Below center of dash)
- 2012 Cadillac SRX (LH dash, ID 13580696)
- 2012-2013 Chevrolet Camaro (RH dash)
- 2014 Chevrolet Camaro (RH dash, Cpe)
- 2012 Chevrolet Equinox (LH side dash)
- 2013 Chevrolet Spark (Left lower a-pillar)
- 2012 Chevrolet Volt (RH engine compartment)
- 2012 GMC Terrain (LH side dash)
Frequently Asked Questions
How exactly does the mail-in cloning service work?
After your purchase, we’ll send you shipping instructions. You send us your original BCM. We then use specialized equipment to read the vital data from your module and write it onto the replacement unit. This makes the new module an exact electronic copy of your old one, ensuring it works with your existing keys and vehicle configuration.
Is this guaranteed to fix my vehicle’s problems?
This BCM will fix issues directly caused by a faulty BCM. If you’re experiencing the common symptoms we’ve listed (erratic lights, lock/window failure, communication codes), this is very likely the solution. However, it will not fix problems originating from other parts, like a bad wiring harness or a failing sensor.
Why do I have to send in my original part?
Your original BCM contains security data that is unique to your vehicle, including information that allows your keys to start the engine. By cloning this data, we eliminate the need for you to pay for expensive key reprogramming or security system relearns at a dealership, saving you time and money.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing to operate the vehicle correctly, we can still extract the necessary data from the memory chip. Please contact us before ordering if your module is severely damaged by water or fire, or if a previous repair attempt has been made on the board.
Are any other programming or relearn procedures needed after installation?
Our cloning service handles 99% of the work. However, as noted, some GM vehicles may require an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ using a professional scan tool if related warning lights appear after installation. This is a simple procedure for any qualified mechanic.