Are you battling bizarre electrical issues in your 2013 Buick Regal? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes down, it can cause a cascade of frustrating and seemingly unrelated problems. Many owners dread the expensive trip to the dealership, which involves high diagnostic fees and costly programming. We offer a better, more direct solution.
This is a fully tested, reliable BCM that comes pre-programmed with your vehicle’s exact data. Our professional cloning service transfers all the critical information—including VIN, mileage, and key data—from your original module to this replacement unit. The result is a true plug-and-play component that eliminates the need for any additional programming or calibration at a shop. Simply send us your original BCM, and we’ll handle the rest, shipping you back a ready-to-install module that restores your car’s functionality perfectly.
From the Diagnostic Bay: The Regal with a Mind of Its Own
A customer brought in a 2013 Regal that was driving him crazy. The radio would turn on and off, the interior lights would pulse randomly, and sometimes the car wouldn’t recognize the key fob. He’d already replaced the battery, but the electrical gremlins persisted. After hooking up my scan tool, I saw multiple U-codes (communication errors) pointing to the BCM. Instead of a new, unprogrammed module from the dealer, we used this cloning service. Once the programmed unit arrived, the swap took less than 30 minutes. All the weird issues vanished instantly. It’s a straightforward fix that saves hundreds in dealer programming fees.
Common Signs of a Failing BCM
If your vehicle is experiencing any of these symptoms, a faulty BCM could be the culprit. In my shop, these are the most common indicators I see:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors not working correctly or at all.
- ✔ The security system or keyless entry system malfunctioning.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Multiple communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-series codes.
- ✔ Warning lights on the dashboard for unrelated systems.
Your Step-by-Step BCM Swap Guide
Installing your pre-programmed module is a manageable job for a DIYer. For the 2013 Regal, the BCM is typically located behind the driver’s side of the dashboard. Always confirm the location in a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your car’s battery and wait a few minutes for the system to discharge completely.
- Access the Module: Carefully remove any trim panels or covers necessary to access the BCM on the left side of the dash.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs, so press them firmly to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the Replacement: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors, ensuring they click securely into place.
- Final Steps: Re-install any trim panels you removed. Reconnect the negative battery terminal. Start the vehicle to confirm that all electronic features are working as they should.
Important Post-Installation Note: In some cases, additional procedures may be required. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A ‘Brake Pedal Position Relearn’ might also be necessary for proper brake light and traction control operation. These requirements can vary by model.
Will This Fit My GM Vehicle?
This Body Control Module is a direct fit for a wide range of GM vehicles. Please verify your original part number is on this list and that your vehicle’s model and year match the options below. Part Numbers: 13584695, 13586273, 13580697, 13588447, 13589197, 13589324, 13589325
- 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 cloning service work?
After you place your order, we will provide instructions for shipping your original BCM to us. Once we receive it, our technicians will transfer all the essential data to the replacement unit. We then ship the ready-to-install module back to you, typically within 1-2 business days.
Do I need to have this 2013 Regal Body Control Module programmed by a dealer?
No. Because we clone the data from your original module, this replacement BCM is 100% plug-and-play. You will not need to visit a dealer or mechanic for expensive programming.
What if my original BCM is completely dead or not communicating?
In most cases, even if the module is failing, we can still extract the necessary data for cloning. Please contact us with details about your module’s condition if you have concerns.
Is there a core charge or do I need to send my old part back?
There is no core charge. The service requires you to send your original module to us for the data transfer, but you do not need to return it after you receive the programmed replacement.
What happens if the airbag light comes on after installation?
This can occasionally happen. It means the new BCM needs to be synced with the airbag system’s SDM. A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.