Restore Your Vehicle’s Electronics with a Hassle-Free Solution
Is your 2012 GMC Terrain or other compatible GM vehicle suffering from bizarre electrical problems? Flickering lights, malfunctioning power windows, a dashboard lit up with warning messages, or even a no-start condition can often be traced back to a failing Body Control Module (BCM). Dealerships often quote expensive prices for a new module plus hundreds more for programming. We offer a straightforward, cost-effective alternative. This listing is for a comprehensive cloning service where we transfer the vital data from your original BCM to a fully functional replacement unit, ensuring a perfect match for your vehicle.
How Our Simple Cloning Service Works:
The process is designed for your convenience. After you place your order, we will contact you with clear, step-by-step instructions for shipping your original BCM to our facility. Once we receive it, our expert technicians will meticulously transfer all vehicle-specific information—including VIN, mileage, and key data—to the replacement module. This makes the new unit a true plug-and-play solution. We then ship the programmed module back to you, typically within 24-48 hours of receiving your original. There is no core charge, so you can keep your old part.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2012 Equinox—which shares its platform with the Terrain—that came into the shop with the most frustrating, intermittent issues. The radio would turn off randomly, the dome lights would flicker while driving, and the remote key fob worked only half the time. The owner had already replaced the battery and checked the main grounds. After hooking up the scan tool, I noticed several communication loss codes (U-codes) pointing to the BCM. By monitoring live data, we saw the BCM was erratically dropping offline. Instead of a costly new module and a full vehicle reprogram, we performed a clone service just like this one. The customer had the replacement BCM back in two days, installed it in under 30 minutes, and every single ghost in the machine was gone. It’s a reliable fix that saves immense time and money.
Common Signs of a Failing BCM
- ✔ Unpredictable power window or door lock operation
- ✔ Interior or exterior lights staying on or not working at all
- ✔ The security system preventing the engine from starting
- ✔ False warning messages on the instrument cluster (e.g., “Service StabiliTrak”)
- ✔ Inconsistent or non-functional remote keyless entry
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work.
- ✔ Locate the BCM: On a 2012 GMC Terrain or Chevy Equinox, the BCM is typically found on the left (driver’s) side of the dashboard, often behind the lower dash panel. Consult a service manual for the exact location on other models.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the original BCM. Note their orientation. Then, unfasten any bolts or clips holding the module in place and remove it.
- ✔ Install the New Module: Seat the replacement BCM in the mounting bracket and secure it. Reconnect all electrical connectors firmly into their correct sockets.
- ✔ Reconnect and Test: Reattach the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions: lights, windows, locks, wipers, and radio to confirm proper operation.
Important Post-Installation Notes
While our programming service for the 2012 Terrain BCM makes installation seamless, some vehicle systems may require recalibration after the module is replaced. These procedures are not always necessary but are important to be aware of:
- 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 new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure the brake lights and traction control system function correctly.
Disclaimer: Always consult a factory service manual or a qualified professional if you are unsure about any step of the installation or post-installation process.
Verified Vehicle Compatibility
This service provides a replacement for part numbers 13580696, 123589093, 13588446, 13584692, and 13583542. It is confirmed to fit the following vehicles:
- Buick LaCrosse: 2012-2013 (Body Control Module; LH kick panel)
- Buick Regal: 2012 (Body Control Module; LH dash)
- Buick Verano: 2012 (Body Control Module; below center of dash)
- Cadillac SRX: 2012 (Body Control Module; LH dash, ID 13580696)
- Chevrolet Camaro: 2012-2014 (Body Control Module; RH dash)
- Chevrolet Equinox: 2012 (Body Control Module; LH side dash)
- Chevrolet Spark: 2013 (Body Control Module; left lower a-pillar)
- Chevrolet Volt: 2012 (Body Control Module; RH engine compartment)
- GMC Terrain: 2012 (Body Control Module; LH side dash)
Frequently Asked Questions
How does the mail-in cloning service work?
After your purchase, we’ll email you instructions to ship your original BCM to us. We then copy its data to the replacement unit and ship it back to you, ready for installation.
Will I need to have this BCM programmed by a dealer?
No. Our cloning service makes this a plug-and-play part. All the necessary programming from your original module is transferred over, so you can avoid expensive dealer programming fees.
Where is the BCM located on my 2012 GMC Terrain?
The Body Control Module on the 2012 Terrain is located on the driver’s side of the dash, accessible by removing the lower instrument panel trim.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the BCM needs to be synced with the airbag module using a ‘Setup SDM Primary Key’ procedure, which can be done with a professional-grade diagnostic tool.
How long does the entire process take?
We typically program and ship the replacement module within one business day of receiving your original BCM. Total turnaround time will depend on shipping speeds to and from our facility.
Do I need to send my old part back after installation?
No, there is no core charge for this service. You only need to send us your original BCM for the data transfer. You can keep it afterward.