Solve Your Vehicle’s Electrical Gremlins for Good
Is your Buick Verano or other GM vehicle acting possessed? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents you from starting the car are all classic signs of a failing Body Control Module (BCM). As the central hub for your car’s comfort and convenience electronics, a faulty BCM can turn your daily drive into a frustrating ordeal. In my 20+ years as a technician, I’ve seen how a single failing module can cause a cascade of seemingly unrelated problems, making diagnosis a nightmare for the unprepared.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional cloning service for this BCM, compatible with part numbers including 13588446, 13580696, 123589093, 13584692, and 13583542. Simply purchase this service, and we’ll contact you with instructions to ship your original BCM to our facility. Our experts will then transfer all the critical vehicle-specific data—like key programming and security information—to this quality replacement unit. We ship it back to you, ready for installation, saving you hundreds of dollars and the time-consuming trip to a dealership for programming.
A Technician’s Notebook: The Verano with a Ghost
A customer brought in a 2012 Buick Verano with a truly bizarre complaint: the radio would turn on by itself, the interior lights would pulse dimly at night, and occasionally, the car wouldn’t recognize the key fob. They had already replaced the battery and checked the alternator. When I connected my scan tool, I found a slew of U-codes (communication errors) pointing to the BCM. Instead of communicating, it was flooding the data network with garbage information. By providing a pre-programmed module based on their original, we had them back on the road the next day, with all electrical systems stable and predictable. This is the exact service we offer here—a proven, reliable fix.
Signs Your Body Control Module is Failing
A failing BCM can manifest in many ways, often intermittently at first. If you’re experiencing any of the following, your BCM is the likely culprit. A faulty 2012 Verano BCM can be the source of many hard-to-diagnose issues.
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on, flickering, or failing to turn on.
- ✔ The security system or alarm malfunctioning, causing no-start conditions.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-series codes.
Your Straightforward BCM Installation Guide
With our cloning service, the physical installation is a direct swap. The BCM in the 2012 Verano is located below the center of the dash. While locations vary by model, the process is generally similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before beginning work.
- Locate the BCM: On the Verano, it’s under the center of the dashboard. For other models, refer to the fitment list below for its general location (e.g., ‘LH dash’, ‘RH engine compartment’). You may need to remove a trim panel for access.
- Disconnect Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that must be depressed to release. Do not force them.
- Remove the Old Module: Unbolt or unclip the original BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—lights, windows, locks, etc. Refer to the post-installation procedures below if any warning lights appear.
Important Post-Installation Information
In some cases, additional electronic ‘handshake’ procedures may be required after installation. These are simple for a professional with the right scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed. This syncs the new BCM with the airbag system. This is only necessary if the light is illuminated.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure brake lights and traction control function correctly.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for your specific model.
Verified Vehicle Compatibility
This BCM and programming service is a direct solution for the following vehicles and part numbers. Please match your part number (13588446, 13580696, etc.) or vehicle to ensure correct fitment.
- Buick LaCrosse: 2012 (ID 13580696), 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: 2012-2013, 2014 (Coupe) – (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 About Our Service
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will email you a prepaid shipping label and instructions. You ship your original BCM to us. We extract the unique vehicle data and transfer it to the replacement module. We then ship the ready-to-install BCM back to you.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary security information is stored within your original BCM, which is what we clone.
Is there a core charge?
No, there is absolutely no core charge for this part. You can keep your original, non-functional module.
What if my original BCM is completely dead or missing?
If your BCM is non-communicative or missing, we cannot perform the cloning service. This service requires a readable original module to extract the data. Please contact us before ordering if this is your situation.
Will I need a mechanic to perform the post-install procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool. While many DIYers are very capable, these specific tasks are typically performed by a qualified mechanic or a well-equipped shop.