Restore Your Vehicle’s Electrical System with a Pre-Programmed BCM
Are you dealing with bizarre electrical issues in your 2012 GMC Terrain? Flickering lights, power windows with a mind of their own, or a security light that prevents your vehicle from starting? These are classic signs of a failing Body Control Module (BCM). As the nerve center for your vehicle’s accessories, when the BCM goes bad, it can create a cascade of frustrating and seemingly unrelated problems. This isn’t just an inconvenience; it can affect your vehicle’s safety and reliability.
Forget the expensive trip to the dealership and the hassle of scheduling programming appointments. We offer a straightforward, reliable solution. This listing is for a replacement BCM, part number 13580696, that comes pre-programmed with your vehicle’s exact data. Our professional cloning service transfers all the critical information from your original BCM to this replacement unit, making the installation process as close to plug-and-play as possible.
Case Study: A Tricky Diagnosis
A customer brought in a 2012 Equinox (which shares its platform with the Terrain) with a complaint that was driving them crazy. The radio would turn on and off randomly, the dome light would flicker while driving, and occasionally, the car just wouldn’t start. They had already replaced the battery and checked the alternator. After hooking up my scan tool, I found a slew of communication error codes (U-codes) pointing to a network issue. In my 20+ years of experience, this pattern almost always leads back to the BCM. We swapped in one of our cloned BCMs, and every single issue vanished instantly. It’s a common failure, but our service makes the fix simple.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, your BCM is the likely culprit:
- ✔ Power windows, door locks, or mirrors not working correctly or at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system light is on, and the vehicle won’t start (anti-theft fault).
- ✔ Horn honking unexpectedly or not working.
- ✔ Wipers operating erratically.
- ✔ Multiple communication error codes (e.g., U0140, U0155) stored in various modules.
How Our Simple Mail-In Programming Service Works
Our goal is to get you back on the road with minimal downtime. After you purchase, we will contact you with clear, step-by-step instructions for shipping your original BCM to our facility. Once we receive it, our technicians will perform a full data transfer to the replacement module. We then ship both your original module and the ready-to-install replacement back to you with tracking. No core charge means you get to keep your original part.
A Straightforward Guide to Installation
Installing your newly programmed BCM is a manageable job for a DIY enthusiast or any professional mechanic. While the exact location can vary slightly, the process is generally consistent.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: In the 2012 GMC Terrain and Chevy Equinox, 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, so be gentle to avoid damage.
- Swap the Modules: Unbolt or unclip the original BCM and remove it. Install the replacement module in the same location.
- Reconnect Everything: Plug all electrical connectors firmly into the new BCM and reconnect the negative battery terminal.
- Test Functions: Start the vehicle and test all body functions—lights, locks, windows, wipers, etc.—to confirm the repair.
Important Post-Installation Notes
While our cloning service handles the primary programming, some vehicle systems may require a quick sync-up after installation:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure the brake lights and traction control system function as intended. This is also performed with a scan tool.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This BCM is a direct fit for part number 13580696 and is also interchangeable with part numbers 123589093, 13588446, 13584692, and 13583542. It is confirmed to fit the following vehicles:
- ✔ 2012 Buick Regal: Body Control (BCM); (LH dash)
- ✔ 2012-2013 Buick LaCrosse: Body Control (BCM); (LH kick panel)
- ✔ 2012 Buick Verano: Body Control (BCM); (below center of dash)
- ✔ 2012 Cadillac SRX: Body Control (BCM); (LH dash), ID 13580696
- ✔ 2012-2013 Chevrolet Camaro: Body Control (BCM); (RH dash)
- ✔ 2014 Chevrolet Camaro: Body Control (BCM); (RH dash), Cpe
- ✔ 2012 Chevrolet Equinox: Body Control (BCM); (LH side dash), body control
- ✔ 2013 Chevrolet Spark: Body Control (BCM); (left lower a-pillar)
- ✔ 2012 Chevrolet Volt: Body Control (BCM); (RH engine compartment)
- ✔ 2012 GMC Terrain: Body Control (BCM); (LH side dash), body control
Frequently Asked Questions
What is a BCM cloning service?
Cloning is a process where we transfer the complete software and vehicle-specific data—like the VIN, mileage, and key information—from your original BCM to the replacement unit. This makes the new module a perfect digital copy, allowing it to work in your car without needing expensive dealership programming.
Do I need to do any programming myself?
No. The main programming is completed by us before we ship the module to you. In some cases, minor relearn procedures like for the airbag or brake pedal sensor may be required post-installation, which can be done with a suitable scan tool.
What if my airbag light comes on after I install it?
This is a normal security feature on some GM vehicles. It simply means the new BCM needs to be electronically introduced to the airbag module. A technician with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to turn off the light.
How long does the programming service take?
We pride ourselves on a fast turnaround. Once we receive your original module, we typically complete the cloning service and ship your parts back out within 1-2 business days. We will send you tracking information as soon as it’s on its way.
Is there a core charge or do I need to send my old part back?
You only need to send your original BCM to us for the data transfer service. There is no core charge, and we will return your original module to you along with the newly programmed replacement.