Restore Full Electrical Function to Your Buick Regal
If you’re dealing with baffling electrical issues in your 2014-2017 Buick Regal—like flickering lights, unresponsive power windows, or a security system that has a mind of its own—a failing Body Control Module (BCM) is the likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant frustration. It’s the central command for your car’s body electronics, and when it goes, it can trigger a cascade of problems that are often misdiagnosed.
Forget the expensive trip to the dealership and the days of downtime. We offer a simple, reliable solution: a replacement BCM that is professionally programmed using the data from your original module. This cloning service ensures that the replacement unit is a perfect match for your vehicle’s specific configuration, including the VIN and security information. The result is a true plug-and-play module that gets you back on the road without the need for costly dealer-only tools.
A Technician’s Notebook
I recently had a 2016 Regal in the bay with a classic case of BCM failure. The customer reported that the radio would randomly shut off, the driver’s side power window wouldn’t work, and the anti-theft light would blink intermittently, sometimes preventing the car from starting. A scan showed a handful of U-codes (communication errors) with no clear cause. Instead of chasing electrical gremlins for hours, we identified the BCM as the source of the network collapse. By providing a cloned 2014-2017 Regal BCM, the customer was able to perform the swap themselves over the weekend. All the strange symptoms vanished instantly, saving them an estimated $700 in diagnostic and programming fees at the dealership.
How Our Programming Service Works
The process is designed for your convenience. After you place your order, we will contact you with simple instructions to ship your original BCM to our facility. Once we receive it, our experts will extract the necessary programming data and transfer it to this fully tested replacement BCM. We then ship the ready-to-install module back to you, typically within 1-2 business days. It arrives at your door ready to be installed, with no further programming needed.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry fails or acts unpredictably.
- ✔ Dashboard warning lights (like ABS or Airbag) illuminate for no reason.
- ✔ Communication failure diagnostic trouble codes (DTCs), such as U0140, U0155, or U0100.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: In the 2014-2017 Buick Regal, the Body Control Module is typically located behind the dashboard on the driver’s side (LH dash).
- ✔ Disconnect the Module: Carefully unplug the electrical connectors from the original BCM. The retaining clips can be delicate, so apply gentle, steady pressure.
- ✔ Swap the Modules: Remove the mounting screws or bolts holding the old BCM in place and install your new, pre-programmed module.
- ✔ Reconnect and Test: Securely plug the electrical connectors into the new BCM. Reconnect the battery terminal and test all functions—lights, locks, windows, radio, etc.—to confirm the repair.
Important Post-Installation Notes
While our cloning makes this a plug-and-play repair, some GM systems may require a final handshake. Please be aware of the following possibilities:
- Airbag System Sync: If your airbag warning light is on 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 some models, a brake pedal position sensor recalibration might be necessary to ensure the brake lights and traction control system function properly.
Disclaimer: Always consult a factory service manual or a qualified technician if you are unsure about any step. These procedures can vary slightly by specific model and year.
Verified Vehicle Compatibility
This module is a direct replacement for part number 13594564 and is interchangeable with the following part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, and 13593776. It is guaranteed to fit the following models:
- 2014-2017 Buick Regal (Body Control (BCM); LH dash)
- 2014-2016 Cadillac ELR
- 2014-2016 Cadillac SRX
- 2014-2015 Chevrolet Camaro
- 2014-2015 Chevrolet Volt
- 2014-2016 Chevrolet Spark (EV Model)
- 2014-2016 Buick LaCrosse
- 2014-2016 Chevrolet Malibu (including ’16 Limited)
Frequently Asked Questions
Frequently Asked Questions
How does the mail-in programming service work?
After you purchase, we’ll email you a prepaid shipping label and instructions. You simply box up your original BCM and send it to us. We clone the data to the new unit and ship it back to you ready for installation.
Is this a simple plug-and-play installation?
Yes, for over 95% of installations. Because we clone your vehicle’s original data, no additional programming is needed to get the car running and functioning. In rare cases, a post-install procedure like an airbag sync may be required.
Do I need to send my keys?
No. Since we are cloning the data directly from your old module, all your original keys will work just as they did before. You do not need to send us your keys.
What if my original BCM is completely dead or not communicating?
In many cases, even with significant water or electrical damage, we can still recover the necessary data. If we determine your module is not readable, we will contact you to discuss options or provide a full refund.
Is there a core charge for my old module?
No, there is no core charge. After we have cloned the data from your original BCM, you are free to keep it.