Restore Your Regal’s Electrical System with a Plug-and-Play Solution
Are you dealing with baffling electrical issues in your Buick Regal? Flickering dashboard lights, power windows with a mind of their own, or a security system that prevents your car from starting can be incredibly frustrating. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM), the central command center for your vehicle’s electronics. A trip to the dealership often means a hefty bill for a new module and expensive programming fees. We offer a simpler, more affordable path back to reliability.
This is a direct-fit replacement Regal Body Control Module that comes ready for installation. How? Through our expert cloning service. After you place your order, we’ll coordinate with you to ship your original BCM to our facility. Our technicians will then transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. We then ship the fully programmed module back to you. The result is a true plug-and-play component that restores function without any need for additional dealer intervention.
A Technician’s Notebook: The Case of the Haunted Regal
A customer brought in a 2015 Regal with a laundry list of complaints: the radio would randomly shut off, the interior lights would pulse, and sometimes the remote key fob wouldn’t work. They’d already replaced the battery, but the problems persisted. A quick scan showed a U0140 ‘Lost Communication With Body Control Module’ code. In my 20+ years of experience, intermittent communication codes like this almost always point to an internal BCM failure, not a wiring issue. Instead of a costly new unit and hours of programming, we used our cloning service. The customer mailed in their faulty BCM, we transferred the data, and sent the replacement back. The install took them less than an hour, and all the electrical gremlins were gone for good. It’s a dependable fix that saves both time and money.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM could be the culprit. This Regal Body Control Module is designed to resolve these specific issues:
- ✔ Unpredictable behavior from power windows, door locks, or wipers.
- ✔ Horn honking randomly or not working at all.
- ✔ Malfunctioning interior or exterior lights (staying on or not turning on).
- ✔ The anti-theft or security system light is illuminated, preventing the engine from starting.
- ✔ Communication error codes stored in the system (such as U0140, U0155).
- ✔ False warnings appearing on the instrument cluster (e.g., door ajar, low tire pressure).
A Straightforward Guide to Installation
Once you receive your programmed module, installation is manageable for a DIYer with basic tools. For the 2014-2017 Regal, the BCM is typically located behind the left side of the dashboard.
- Safety First: Always disconnect the negative terminal from your car’s battery before working on any electronic components.
- Access the Module: Carefully remove the necessary trim panels on the driver’s side dash to gain access to the BCM. Its exact position can be confirmed with a service manual.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses.
- Post-Installation Checks: Reconnect the battery. Start the vehicle and test all body functions—lights, windows, locks, wipers, and radio—to ensure everything is working correctly.
- Address Warning Lights (If Necessary): In some cases, you may see an airbag light or need to perform a brake pedal position relearn. These procedures, detailed below, may require a professional scan tool.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require recalibration after the BCM is replaced:
- Airbag System Sync: If the airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed. This syncs the airbag system with the new BCM and requires a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: To ensure accurate brake light operation and traction control function, a brake pedal position sensor relearn might be necessary on certain models.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for specific guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part number 13589637 and is interchangeable with the following part numbers: 13580698, 13578458, 13589115, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564. It is confirmed to fit the following vehicles:
- 2014-2017 Buick Regal (LH dash)
- 2014-2016 Cadillac ELR (RH cowl / RH engine compartment)
- 2014-2016 Cadillac SRX (LH dash)
- 2014-2015 Chevrolet Camaro (RH dash)
- 2014-2016 Chevrolet Spark EV (left lower a-pillar)
- 2014-2015 Chevrolet Volt (RH engine compartment)
- 2014-2015 Buick LaCrosse (LH kick panel)
- 2016 Buick LaCrosse (LH kick panel, check ID)
- 2014-2015 Chevrolet Malibu (LH kick panel)
- 2016 Chevrolet Malibu Limited (VIN 1) (LH kick panel)
Why do I need to send you my original BCM?
Your original BCM contains unique security and configuration data for your specific vehicle. By cloning this data to the replacement module, we make the new part plug-and-play. This process eliminates the need for expensive and complicated programming at a dealership.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, replacing the BCM is very manageable. It primarily involves removing a few interior trim panels and disconnecting electrical connectors. Our step-by-step guide provides a clear overview of the process.
What happens after I purchase?
Once your order is placed, we will contact you with detailed instructions and a shipping address for sending us your original BCM. Please ensure your contact information is accurate at checkout. We’ll notify you once we receive it and again when your programmed replacement ships back to you.
Will this fix my car’s no-start problem?
If your no-start issue is caused by the vehicle’s security system (often indicated by a flashing security light), a faulty BCM is a very likely cause. This programmed Regal Body Control Module is designed to resolve these security-related communication failures.
Is there a core charge?
No. There is no core charge for this part. You can keep your original module after you receive the programmed replacement from us.