End Electrical Gremlins: The Definitive Fix for Your Vehicle
If you’re dealing with bizarre and frustrating electrical issues in your GM vehicle—like power windows with a mind of their own, flickering dash lights, or a car that refuses to start—the Body Control Module (BCM) is the most likely culprit. As the central nervous system for your car’s body electronics, a failing BCM can wreak havoc. This isn’t just an inconvenience; it can affect vehicle security and safety systems. This listing offers a straightforward, reliable solution: a professionally programmed BCM that gets you back on the road without the exorbitant costs and scheduling headaches of a dealership visit.
Our service simplifies the entire process. You send us your original BCM, and we transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. The module you receive back is 100% plug-and-play. This data cloning is the key to avoiding the complex and expensive SPS programming required by dealerships. For a DIY enthusiast or a professional shop, this means less downtime and a guaranteed fix for a faulty 2011 Regal BCM and other compatible models.
A Technician’s Notebook
I remember a 2011 Buick LaCrosse that came into the bay with a laundry list of phantom problems. The customer reported the radio would turn off randomly, the driver’s side door wouldn’t lock with the fob, and occasionally the anti-theft light would stay on, preventing it from starting. They had already replaced the battery and checked fuses. After hooking up the scan tool, I found multiple U-codes (communication errors) pointing to a network breakdown. In my 20+ years of experience, this pattern almost always points to an internal failure in the BCM. The module simply couldn’t manage the data traffic anymore. We performed this exact cloning service, and the replacement BCM resolved every single issue instantly. It’s a classic failure on this GM platform.
Common Signs of a Failing GM Body Control Module
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is your solution:
- ✔ Erratic power window or door lock operation.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ Malfunctioning radio or infotainment system.
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ Horn sounding unexpectedly or not working.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ False warnings on the driver information center (DIC).
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is designed to be a simple swap. For the 2011 Regal BCM, it’s typically located behind the driver’s side of the dashboard.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to discharge completely.
- Locate the BCM: On most compatible models, the BCM is found in the driver’s or passenger’s side kick panel or behind the dash. A quick search for your specific model will confirm the location. For the 2011 Regal, check the LH (driver’s side) dash area.
- Disconnect and Remove: Carefully unplug the wiring harness connectors from the old BCM. They have locking tabs that need to be pressed. Once disconnected, remove any bolts or clips holding the module in place and take it out.
- Install the New Module: Seat the replacement BCM in the mounting bracket and secure it. Reconnect all wiring harnesses, ensuring each plug clicks firmly into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair was successful.
Important Post-Installation Information
While our programming makes this a plug-and-play part, some vehicle 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. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to prevent issues with the traction control system.
Disclaimer: Procedures can vary by make and model. We always recommend consulting a factory service manual or a qualified technician for specific instructions.
Verified Vehicle Compatibility List
This BCM is a direct-fit replacement for a wide range of GM vehicles and is compatible with the following part numbers: 13579004, 13580198, 13582396, 13583450, 13586856, 13582688, 13586278, 13501737, 13501739, 13577924, 13580773, and 13583451. It fits the following models:
- Buick LaCrosse: 2011, 2012
- Buick Regal: 2011
- Cadillac SRX: 2011, 2012
- Chevrolet Camaro: 2011 (Convertible)
- Chevrolet Cruze: 2012
- Chevrolet Equinox: 2011
- Chevrolet Orlando: 2012
- Chevrolet Volt: 2011, 2013
- GMC Terrain: 2011
Frequently Asked Questions
What is the process for this programming service?
It’s simple. After you purchase, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer the data to the replacement unit and ship it back to you, ready for installation.
Do I need to have this BCM programmed by a dealer?
No. The entire point of our service is to handle the programming for you. The module you receive will be plug-and-play, saving you from needing any special tools or a trip to the dealership.
Where is the BCM located on my 2011 Buick Regal?
On the 2011 Buick Regal, the Body Control Module (BCM) is typically located on the left-hand (driver’s side) of the dashboard.
What if my airbag light turns on after I install it?
This can occasionally happen. It requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a professional mechanic with a high-level diagnostic tool to sync the systems and turn off the light.
Is there a core charge for my old part?
No, there is no core charge. We need your original module to perform the data transfer, but you are welcome to keep it afterward if you wish.
How do I know if this part will fit my car?
Please match your original part number to our extensive cross-reference list, which includes 13583451, 13583450, 13579004, and many others. Also, check our detailed fitment list to confirm your make, model, and year.