Tired of Unpredictable Electrical Problems in Your GM Vehicle?
If you’re dealing with bizarre electrical issues in your 2013 Buick Regal or another compatible GM model, you’re not alone. Flickering lights, malfunctioning power windows and locks, a security system that has a mind of its own, or even a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, and when it starts to go, it can create a cascade of confusing and annoying problems. Dealerships will often quote you a fortune for a new module plus hours of labor for programming. We offer a smarter, more affordable solution.
This is a fully tested, replacement BCM that comes ready for installation. How? We use a simple mail-in cloning service. After your purchase, we’ll provide instructions to ship your original BCM to our facility. Our expert technicians will then extract the critical vehicle-specific data (like VIN, mileage, and key information) from your old module and flash it directly onto this replacement unit. The result is a true plug-and-play module that is perfectly synced to your car, eliminating the need for expensive dealership programming. You get your vehicle back on the road quickly and reliably.
A Technician’s Notebook: The Case of the Haunted Cruze
A customer brought in a 2014 Chevy Cruze with a laundry list of complaints that sounded like a ghost was in the machine. The radio would turn on by itself, the dome light would flicker while driving, and occasionally, the car just wouldn’t start—no crank, nothing. They had already replaced the battery and checked the alternator. After hooking up my scan tool, I saw a dozen communication error codes (U-codes) pointing to the BCM. Instead of a costly new unit, we used a cloned BCM. The customer mailed us their faulty module, we programmed the replacement, and sent it back. They installed it in under 30 minutes, and every single electrical gremlin vanished. It’s a textbook example of how a failing 2013 Regal Body Control Module (or its equivalent in other models) can mimic multiple other problems.
Is Your GM Exhibiting These BCM Failure Symptoms?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not working at all).
- ✔ The security system light is on, or the alarm goes off randomly.
- ✔ The vehicle won’t start, and the dashboard is dead or displays strange warnings.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Wipers or horn activating unexpectedly or not working when needed.
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is a manageable job for a confident DIYer. While the exact location varies (see fitment list), the general process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most models like the Regal, it’s found behind the driver’s side dash or kick panel. Consult a service manual for your specific vehicle if you’re unsure.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount the replacement BCM in the same position and securely reconnect all electrical harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect & Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions: lights, locks, windows, wipers, and radio to ensure everything is working correctly.
Important Post-Installation Note: In some cases, additional steps may be needed. If your airbag light is on, an ‘Airbag System Sync’ (Setup SDM Primary Key) will be required using a professional scan tool. A ‘Brake Pedal Position Relearn’ might also be necessary on certain models. Always refer to a factory service manual for vehicle-specific procedures.
Verified Vehicle Compatibility List
This module is a direct fit for vehicles equipped with part numbers 13584695, 13586273, 13580697, 13588447, 13589197, 13589324, or 13589325. Please verify your part number before ordering.
- Buick Encore: 2013-2014 (LH side of dash)
- Buick Regal: 2013 (LH dash)
- Buick Verano: 2013-2017 (Below center of dash)
- Cadillac SRX: 2013 (LH dash)
- Chevrolet Cruze: 2013 (LH kick panel, w/o opt ATH), 2014-2015 (LH kick panel), 2016 (LH kick panel, VIN P – Limited)
- Chevrolet Equinox: 2013-2017 (LH side dash)
- Chevrolet Malibu: 2013 (LH kick panel)
- Chevrolet Orlando: 2013-2014 (Below center console)
- Chevrolet Spark: 2014-2015 (Left lower a-pillar, gasoline model)
- Chevrolet Trax: 2013-2014 (LH side of dash)
- Chevrolet Volt: 2013 (RH engine compartment, ID 13580697 or 13586273)
- GMC Terrain: 2013-2017 (LH side dash)
Frequently Asked Questions
How does the mail-in programming service work?
It’s simple. After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, our technicians clone the data to the replacement module and ship it back to you, usually within one business day.
Is this really plug-and-play?
Yes. Because we clone the data from your original module, the replacement BCM is pre-configured for your vehicle’s specific VIN, options, and key data. This eliminates the need for any additional programming by a dealer or mechanic.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary immobilizer and key data is stored within your original BCM, and we transfer it directly to the new unit. Your existing keys will work seamlessly.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, we can still extract the necessary data. If your module is severely damaged (e.g., by fire or water), please contact us before ordering to discuss options.
What is the ‘Airbag System Sync’ mentioned?
On some GM vehicles, the BCM and the airbag module (SDM) are linked. If the airbag warning light appears after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool to re-sync the two modules.
Is there a core charge?
No, there is no core charge for this item. You can keep your original module after you receive the programmed replacement from us.