Restore Your Vehicle’s Electrical System with a Hassle-Free Solution
Are you dealing with baffling electrical issues in your 2012 GMC Terrain? Flickering lights, malfunctioning power windows, a temperamental security system, or warning lights that won’t go away are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s comfort and convenience features. When it fails, it can feel like your car has a mind of its own. Dealerships often charge a fortune for a new BCM plus mandatory programming fees. We offer a smarter, more affordable path forward.
This listing is for a replacement BCM, part number 13580696, that comes fully programmed for your specific vehicle. How? We use a professional cloning service. After your purchase, we’ll provide instructions for you to ship your original BCM to our facility. Our expert technicians will then transfer all the critical data—including VIN, mileage, and specific options—to this replacement module. The result is a true plug-and-play component, ready for installation the moment it arrives back at your door. No dealer visit, no expensive scan tools, no programming headaches.
From the Diagnostic Bay: The Case of the Confused Camaro
A customer brought in a 2013 Camaro with a frustrating list of symptoms: the radio would turn on and off by itself, the turn signals worked intermittently, and the key fob would only lock the doors sometimes. They had already replaced the battery and checked all the fuses. After connecting my scanner, I saw multiple communication loss codes (U-codes) pointing to the BCM. Instead of a costly new module and hours of programming, we used this exact cloning service. We received the customer’s old BCM, transferred the data, and sent back the programmed replacement. The install took him less than an hour, and every single electrical gremlin was gone. This service is a game-changer for both shops and DIYers.
Is Your GM Vehicle Exhibiting These Electrical Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty BCM is the likely culprit:
- ✔ Power windows, locks, or mirrors not working or behaving erratically.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The anti-theft or security system preventing the car from starting.
- ✔ Inaccurate gauge readings or warning lights on the instrument cluster (like the airbag light).
- ✔ Key fob functions failing intermittently.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
A Straightforward Guide to Installation
Once you receive your pre-programmed module, installation is simple. While the exact location varies by model (see fitment list), the general process is the same. Always disconnect the battery before starting.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to discharge.
- Locate the BCM: On a 2012 Terrain, the BCM is typically found on the left (driver’s) side of the dashboard, often behind the lower dash panel or kick panel.
- Remove Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed to release them. Do not force them.
- Unbolt the Module: Remove the bolts or screws holding the original BCM in its bracket and take it out of the vehicle.
- Install the New BCM: Mount your new, programmed BCM in the same location and secure it with the original hardware.
- Reconnect Everything: Plug all the electrical connectors back into the new module until they click securely in place. Reconnect the negative battery terminal.
Important Post-Installation Notes
Because this module is cloned from your original, most functions will work immediately. However, in some cases, additional sync procedures may be required:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary for proper brake light and traction control operation.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Confirmed Vehicle Fitment List
This BCM is a direct replacement for part number 13580696 and is also compatible with part numbers 123589093, 13588446, 13584692, and 13583542. It is verified to fit the following vehicles:
- Buick LaCrosse: 2012-2013 (LH kick panel)
- Buick Regal: 2012 (LH dash)
- Buick Verano: 2012 (below center of dash)
- Cadillac SRX: 2012 (LH dash, ID 13580696)
- Chevrolet Camaro: 2012-2014 (RH dash)
- Chevrolet Equinox: 2012 (LH side dash)
- Chevrolet Spark: 2013 (left lower a-pillar)
- Chevrolet Volt: 2012 (RH engine compartment)
- GMC Terrain: 2012 (LH side dash)
Frequently Asked Questions
How does the programming service work after I order?
After you place your order, we will contact you with detailed instructions and a shipping address. You will need to send us your original BCM. Once we receive it, we clone the data to the replacement unit and ship it back to you, typically within 1-2 business days.
Do I need to do any programming myself?
No. Our cloning service makes this a plug-and-play module. All the necessary programming from your original BCM is transferred to the new one before we ship it to you.
Is there a core charge or do I get my old BCM back?
There is no core charge for this service. We use your original module for the data transfer and then you can simply keep it.
Will this fix my specific problem?
This module will fix issues directly caused by a faulty BCM. If you’re experiencing the symptoms listed above, it’s highly likely this is the solution. Proper diagnosis is key, so ensure your mechanic has confirmed the BCM is the point of failure.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn require a professional-grade bidirectional scan tool, like a GM MDI, Snap-on, or Autel scanner. Most local repair shops have this equipment if needed.