If you’re dealing with baffling electrical issues in your 2013 Buick Regal—like power windows with a mind of their own, flickering dash lights, or a car that refuses to start—you’ve likely pinpointed the culprit: a failing Body Control Module (BCM). As the central computer for your car’s comfort and security features, a faulty BCM can cause widespread chaos. The dealership solution involves a costly new module and several hours of programming fees. We offer a smarter, more direct fix.
This is a comprehensive cloning service for your vehicle’s BCM. Instead of selling you a blank module that requires expensive dealership tools, we transfer all the critical data from your original BCM to a fully tested, replacement unit. This process ensures that your vehicle’s specific key codes, security information, and option settings are perfectly preserved. The result is a truly plug-and-play module, ready for installation right out of the box, saving you hundreds of dollars and significant hassle.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, locks, or wipers operating intermittently or not at all.
- ✔ The security or anti-theft system preventing the engine from starting.
- ✔ False warning messages on the instrument cluster (e.g., ‘Service Theft System’).
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
- ✔ Horn honking unexpectedly or not working when pressed.
A Technician’s Notebook: The Regal with a Ghost
I had a 2013 Buick Regal roll into my bay last month with a list of symptoms that sounded like something out of a horror movie. The owner said his dash lights would flicker randomly, the radio would shut off, and sometimes the power door locks would cycle while driving. He’d been to two other shops that couldn’t find the issue. After hooking up my scan tool, I saw a dozen communication loss codes pointing everywhere. This is a classic sign that the network’s ‘traffic cop’—the BCM—has gone bad. Instead of a new module and a full system reprogram, we used a cloning service just like this one. We sent his old BCM out, got the programmed replacement back, and installed it in under 30 minutes. All the ‘ghosts’ were gone. It’s the most efficient fix for these complex issues.
Your Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On the 2013 Regal, the BCM is typically located behind the driver’s side of the dashboard, often near the kick panel. Consult your vehicle’s service manual for the precise location.
- ✔ Swap the Modules: Carefully unplug the electrical connectors from your old BCM. Remove any mounting screws or clips holding it in place. Install the new, pre-programmed module in its place and securely re-attach the connectors and mounting hardware.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and verify that your lights, windows, locks, and other body functions are working correctly.
- ✔ Perform Post-Install Checks: As detailed below, some vehicles may require additional steps like an airbag system sync or brake pedal relearn if specific warning lights appear.
Post-Installation Procedures & Notes
While our goal is a plug-and-play experience, certain vehicle systems may need to be re-synchronized after the BCM is replaced. This is normal and typically requires a high-end diagnostic scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed. This syncs the new BCM with the airbag system’s computer.
- Brake Pedal Position Relearn: To ensure proper function of the brake lights and stability control, a brake pedal position sensor recalibration might be necessary on some models.
Disclaimer: We always recommend consulting a factory service manual or a certified technician if you are unsure about any part of the process.
Verified Vehicle Compatibility
This programming service and replacement BCM are compatible with part number 13580697 and the following interchangeable part numbers: 13584695, 13586273, 13588447, 13589197, 13589324, 13589325. It fits a wide range of GM vehicles, including:
- Buick Encore: 2013-2014
- Buick Regal: 2013
- Buick Verano: 2013-2017
- Cadillac SRX: 2013
- Chevrolet Cruze: 2013-2016 (incl. Limited)
- Chevrolet Equinox: 2013-2017
- Chevrolet Malibu: 2013
- Chevrolet Orlando: 2013-2014
- Chevrolet Spark: 2014-2015 (Gasoline Model)
- Chevrolet Trax: 2013-2014
- Chevrolet Volt: 2013
- GMC Terrain: 2013-2017
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, our technicians will extract the unique programming and security data and flash it onto your replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to send my keys with the module?
No. Because we are cloning the data from your original BCM, all of your existing key information is transferred over. Your current keys will work immediately after installation without any additional programming.
Is this a guaranteed fix for my car’s problems?
This BCM is a direct solution for issues caused by a faulty module. Proper diagnosis is key. If your vehicle exhibits the symptoms listed (erratic lights, communication codes, etc.), a failing BCM is the most likely cause. We guarantee our module and programming service will function correctly.
What is a core charge? Do I have to return my old part?
There is absolutely no core charge for this service. You are welcome to keep your original module after sending it to us for the data transfer.
What if the airbag light comes on after I install it?
This is an occasional and normal possibility. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag module. A professional mechanic with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.