Restore Your Vehicle’s Electrical System Without Dealership Hassles
If you’re dealing with bizarre electrical problems in your 2011 Buick Regal—like flickering lights, malfunctioning power windows, or a car that won’t start for no apparent reason—you’ve likely met the frustrating reality of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant headaches. It’s the central hub for your car’s body electronics, and when it goes, chaos ensues. This isn’t just an inconvenience; it can affect safety systems and leave you stranded. We offer a straightforward, reliable solution: a replacement BCM programmed specifically for your vehicle using your original module’s data.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. Often, these symptoms are intermittent, making diagnosis a real challenge. If you’re noticing any of the following, your BCM is the likely culprit:
- ✔ Erratic interior or exterior lights (staying on, not turning on, or flickering).
- ✔ Power windows, locks, or mirrors operating incorrectly or not at all.
- ✔ The security system acting up, preventing the car from starting (look for a flashing security light).
- ✔ The horn honking randomly or the alarm sounding without cause.
- ✔ Dashboard warning lights illuminating for no reason.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
From the Diagnostic Bay: The Ghost in the Machine
I remember a 2011 GMC Terrain that came into my shop with a laundry list of complaints the owner called “the ghost.” The radio would switch stations, the dome light would flicker at highway speeds, and the driver’s side window had a mind of its own. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a dozen intermittent communication codes pointing everywhere and nowhere. This is a classic sign. Instead of chasing individual components, I went straight for the central hub. A quick check of the BCM data stream showed erratic voltage outputs. By providing a pre-programmed 2011 Regal BCM (which cross-references to the Terrain), we solved all the issues in one go, saving the customer hundreds in diagnostic fees.
Our Simple Mail-In Programming Process
Forget about towing your car to the dealership and paying for expensive programming and key relearns. Our service is designed to be simple and effective. After you place your order, we’ll contact you with instructions to ship your original BCM to our facility. Once we receive it, our experts will extract the critical vehicle-specific data and transfer it directly to your replacement module. This cloning process ensures that the new BCM is a perfect digital match for your car, retaining all original key information and settings. We then ship the plug-and-play replacement back to you, typically within 24-48 hours of receiving your original part.
A Straightforward Guide to Your BCM Installation
Installing your newly programmed 2011 Regal BCM is a manageable task for a confident DIYer. The BCM is typically located inside the cabin, on the driver’s side. Always consult a service manual for the exact location on your specific model.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most of these models, it’s found behind the driver’s side lower dash panel or kick panel. You may need to remove a few trim pieces to access it.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Seat the replacement BCM into the mounting bracket and secure it. Reconnect all electrical harnesses firmly until they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Test Functionality: Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to ensure everything is working correctly.
Will This Fit My Vehicle?
This BCM is a direct-fit, programmed solution for a range of GM vehicles. Please verify your part number is on this list before ordering. This module, identified by part numbers like 13504004 and 13578420, is compatible with the following models and options:
- ✔ 2011 Buick Regal – Body Control (BCM); (LH dash), w/o opt AUA
- ✔ 2010 Cadillac SRX – Body Control (BCM); (LH dash)
- ✔ 2011 & 2013 Chevrolet Cruze – Body Control (BCM); (LH kick panel)
- ✔ 2010 Chevrolet Equinox – Body Control (BCM); (LH side dash), body control
- ✔ 2010-2011 GMC Terrain – Body Control (BCM); (LH side dash), body control
This part is a compatible replacement for part numbers: 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, 13578420.
Frequently Asked Questions
Do I need to do any programming after I install it?
No. This is a mail-in cloning service. We transfer all the necessary data from your original BCM to the replacement unit. It will arrive ready to install with no additional programming required.
What is the turnaround time?
We typically program and ship your replacement BCM within 24-48 hours of receiving your original module. We will send you tracking information as soon as it ships.
Do I need to send my keys?
No, you do not need to send your keys. Because we are cloning the data from your original BCM, all of your existing key information will be transferred to the new module. Your current keys will work immediately after installation.
What if my airbag light comes on after installation?
In some cases, the BCM may need to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. This is only necessary if the airbag light is illuminated after the swap.
Is there a core charge?
No, there is no core charge for this service. You can keep your original, non-working module after you receive the programmed replacement from us.