End the Electrical Gremlins in Your GM Vehicle
As a technician with over two decades of experience, I’ve seen it all when it comes to baffling electrical problems. Your 2014-2017 Buick Regal starts acting possessed: the radio turns on and off by itself, the power windows have a mind of their own, or worse, you get a random ‘Service Theft Deterrent System’ message and the car won’t 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 body electronics, and when it goes, it creates chaos.
Instead of facing a massive bill and a long wait at the dealership for a new, unprogrammed part, we offer a smarter, more efficient solution. This is a fully tested, replacement BCM that comes ready for installation. How? Through our professional cloning service. You simply send us your original BCM, and we transfer all its vital data—including VIN, mileage, and specific options—to this replacement unit. The result is a true plug-and-play module, eliminating the need for expensive dealer-only programming tools. This service for your 2014-2017 Regal Body Control Module gets you back on the road quickly and affordably.
From the Diagnostic Bay: The Malibu Mystery
A customer brought in a 2015 Malibu, completely stumped. The car would intermittently not start, the interior lights would flicker, and the horn would sound off randomly when locking the doors. They had already replaced the battery and checked the alternator. After connecting my scan tool, I saw a storm of communication error codes (U-codes) pointing to a network failure. The common link? The BCM. Instead of a new module and a complex programming session, we performed a BCM clone. Once the programmed module was installed, every single issue vanished. It’s a perfect example of how a precise data transfer is the key to fixing these complex electronic systems correctly the first time.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit. A failing module can throw a wide variety of Diagnostic Trouble Codes (DTCs), often starting with a ‘U’ for network communication faults.
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic behavior from the radio, interior lights, or dashboard gauges.
- ✔ False warnings on the dash, such as ‘Service Airbag’ or ‘Service Theft System’.
- ✔ The security light stays on, preventing the engine from starting.
- ✔ The horn, wipers, or lights activating without any input.
- ✔ Communication errors with other modules, often logged as DTCs like U0140, U0155, or U0100.
Your Straightforward BCM Installation Guide
Installing your programmed 2014-2017 Regal Body Control Module is a manageable job for a confident DIYer or any professional mechanic. The key is that the difficult programming work is already done.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2014-2017 Buick Regal, the BCM is typically located behind the lower left-hand side of the dashboard, near the kick panel. For other models, refer to the fitment list for its location.
- Remove the Old Module: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: lights, locks, windows, radio, etc.
- Post-Installation Checks: Start the vehicle. In some cases, as noted below, an airbag light or brake system warning may appear. These require a simple relearn procedure with a capable scan tool to sync the new module completely.
Important Post-Installation Notes
While our goal is a seamless installation, modern vehicles sometimes require a final handshake between modules. Be aware of these potential, easy-to-resolve steps:
- Airbag System Sync: If the 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 may be needed to ensure flawless operation of the brake lights and stability control system.
Disclaimer: Always consult a factory service manual or a qualified technician if you are unsure about any step. Vehicle procedures can vary.
Verified Compatibility for Your Vehicle
This BCM programming service is compatible with units matching part number 13578458 and other interchangeable numbers listed below. It fits a wide range of GM vehicles. Please confirm your part number and vehicle model from this list to ensure proper fitment.
Interchangeable Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
- Buick LaCrosse: 2014-2015, 2016 (ID 13580698 or 13594564) – Located in LH kick panel
- Buick Regal: 2014-2017 – Located in LH dash
- Cadillac ELR: 2014-2016 – Located in RH cowl
- Cadillac SRX: 2014-2016 – Located in LH dash
- Chevrolet Camaro: 2014 (Convertible), 2015 – Located in RH dash
- Chevrolet Malibu: 2014-2015, 2016 (Limited, VIN 1) – Located in LH kick panel
- Chevrolet Spark EV: 2014-2016 (Electric) – Located in left lower A-pillar
- Chevrolet Volt: 2014-2015 – Located in RH engine compartment
Frequently Asked Questions
Frequently Asked Questions
2014-2017 Regal Body Control Module
Is this BCM truly plug-and-play?
Yes, for over 95% of installations. Because we clone your vehicle’s original data, the replacement is recognized by your car’s other systems, eliminating the need for dealer programming. In rare cases, a simple relearn procedure may be needed for the airbag or brake pedal sensor.