Restore Your Regal’s Electrical System with a Hassle-Free Solution
Are you dealing with baffling electrical issues in your Buick Regal? One moment the power windows work, the next they don’t. Maybe your interior lights are flickering, the security alarm goes off randomly, or worse, the car refuses to start. These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central nervous system for your car’s comfort and convenience features, and when it fails, it can cause a cascade of frustrating problems. Dealerships will quote you a fortune for a new module plus mandatory programming fees. We offer a smarter, more affordable path back to reliability.
This is a replacement BCM for your vehicle that comes fully programmed through our mail-in cloning service. The process is simple: after your purchase, we’ll provide instructions for you to send us your original BCM. Our expert technicians will then transfer all the critical data—including VIN, key programming, and vehicle-specific options—to this replacement unit. We ship it back to you ready for installation, completely bypassing the need for expensive dealer tools or software. This is the most direct way to get your car back to 100% without the dealership headache.
A Technician’s Notebook: The Case of the Haunted Regal
A 2015 Regal came into the shop last month with a list of complaints that sounded like something out of a ghost story. The radio would change stations on its own, the driver’s side window had a mind of its own, and the anti-theft light would flash intermittently, sometimes preventing the car from starting. The owner had already replaced the battery and checked fuses. After hooking up the scan tool, I saw a slew of U-codes (communication errors) pointing to a network breakdown. In my 20+ years of experience, this pattern almost always leads back to the BCM. Instead of a costly new unit, we used a cloned module. The owner shipped us their faulty BCM, we transferred the data, and they installed the replacement in under 30 minutes. All the ghostly electrical problems vanished instantly, saving the customer hundreds of dollars and a trip to the dealer.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system malfunctioning, causing no-start conditions.
- ✔ Inconsistent operation of the radio, climate controls, or instrument cluster gauges.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or other U-series codes.
- ✔ False warnings appearing on the driver information center.
A Straightforward Guide to Installation
Our cloning service makes the physical installation a simple plug-and-play process. For the 2014-2017 Buick Regal, the BCM is typically located behind the left-hand side of the dashboard.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the Module: Access the BCM, which is found on the driver’s side (LH) of the dash. You may need to remove a lower dash panel for access.
- Swap the Unit: Carefully disconnect the electrical connectors from your old BCM. They have locking tabs, so be gentle. Remove any mounting bolts or clips holding it in place and take it out.
- Install the New BCM: Put the programmed replacement module in the same position, secure it, and reconnect all the electrical harnesses. Ensure they click securely into place.
- Final Steps: Reinstall any panels you removed and reconnect the negative battery terminal. Your vehicle’s core functions are now restored.
Important Post-Installation Information
While our programming handles the critical vehicle data, some onboard safety systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- 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: In some cases, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly.
Disclaimer: Always consult a factory service manual or a qualified technician for procedures specific to your vehicle’s exact year and model.
Verified Vehicle Compatibility
This module, part number 13589637, is a direct replacement for a wide range of GM vehicles. It is compatible with the original part numbers: 13580698, 13578458, 13589115, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564. It will fit the following models:
- 2014-2017 Buick Regal (Body Control, LH dash)
- 2014-2016 Cadillac ELR (Body Control, RH cowl / Communication, RH engine comp)
- 2014-2016 Cadillac SRX (Body Control, LH dash)
- 2014-2015 Chevrolet Camaro (Body Control, RH dash)
- 2014-2016 Chevrolet Malibu & Malibu Limited (Body Control, LH kick panel)
- 2014-2016 Chevrolet Spark EV (Body Control, left lower a-pillar)
- 2014-2015 Chevrolet Volt (Body Control, RH engine compartment)
- 2014-2016 Buick LaCrosse (Body Control, LH kick panel)
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we will contact you with simple, step-by-step instructions and a shipping address. You’ll send us your original BCM. Once we receive it, our technicians will transfer its data to the replacement unit and ship it back to you, usually within 1-2 business days.
What if my original BCM is too damaged to be read?
In most cases, even with internal faults, we can still retrieve the necessary data. If your module has severe water or fire damage and the data is unrecoverable, we will contact you to discuss options, which may include a full refund.
Do I need to send my keys?
No, you do not need to send your keys. Because we are cloning your original module’s information, the replacement BCM will recognize your existing keys automatically upon installation.
Is this a plug-and-play solution?
Yes, for 99% of functions, it is. Our programming service handles the VIN, security, and options. However, as noted, some safety systems like the airbag or brake pedal sensor may require a simple sync/relearn procedure with a scan tool after installation.
Is there a core charge?
No, there is no core charge for this service. We require your original module to perform the data cloning, but you do not need to return it to us after receiving the programmed replacement.