Restore Your Vehicle’s Functionality and End Electrical Frustrations
Are you dealing with baffling electrical issues in your Buick Regal, Chevy Cruze, or GMC Terrain? Flickering dashboard lights, power windows with a mind of their own, or a security system that prevents your car from starting are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of problems that are frustrating and difficult to diagnose. This isn’t just an inconvenience; it can affect your vehicle’s security and safety systems. Forget the expensive dealership visit and the hassle of coordinating programming. We offer a reliable, straightforward solution.
This listing is for a professionally programmed BCM, part number 13578420. Our expert service involves cloning the essential data from your original, failing BCM directly onto this replacement unit. The result is a true plug-and-play module, ready for installation the moment you receive it. By transferring your vehicle’s unique key codes, VIN, and options configuration, we eliminate the need for costly dealer-specific tools and programming appointments. It’s the most efficient way to get your car back to normal.
From the Diagnostic Bay: The Case of the Haunted Regal
A few months back, a 2011 Buick Regal was towed into my shop. The owner was at his wit’s end. The interior lights would flicker randomly, the radio would turn off, and sometimes the car just wouldn’t start, showing a ‘Service Theft Deterrent System’ message. He’d already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a flurry of communication error codes (U-codes) pointing to the BCM. Instead of selling him a brand new module and charging for several hours of programming, we performed a cloning service just like this one. He sent us his old BCM, we transferred the data, and sent the programmed replacement back. He installed it himself in under 30 minutes. The car started right up, and every single electrical gremlin was gone. It’s a testament to how effective this service is for a complex problem.
Is Your Vehicle Showing These Signs of BCM Failure?
- ✔ Intermittent or non-working power windows, door locks, or interior/exterior lights.
- ✔ The security or anti-theft light is on, preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights illuminating for no reason.
- ✔ Communication error codes stored in the system, such as U0140, U0155, or other U-series codes.
- ✔ Inaccurate gauge readings or complete loss of instrument cluster function.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is designed to be a simple swap. After you receive the module from our cloning service, follow these general steps:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On a 2011 Regal, the BCM is typically found on the left-hand (driver’s) side of the dashboard, often behind the lower dash panel or kick panel. Consult a service manual for your specific model’s exact location.
- Remove the Original Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- Install the Replacement: Mount your new, programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal. The vehicle’s data is already on the module, so it should be ready to go.
Important Post-Installation Procedures
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a quick sync-up. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the BCM with the airbag system and clear the light.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor recalibration might be necessary to ensure the brake lights and traction control system function correctly. This is also performed with a diagnostic tool.
Disclaimer: Procedures can vary by exact make, model, and year. We always recommend consulting a factory service manual or a qualified technician for specific instructions.
Verified Vehicle Compatibility
This BCM and programming service is compatible with the following vehicles and part numbers. Please match your part number to ensure a perfect fit. This module replaces part numbers: 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, and 13578420.
- Buick Regal 2011: Body Control (BCM); (LH dash), w/o opt AUA
- Cadillac SRX 2010: Body Control (BCM); (LH dash)
- Chevrolet Cruze 2011: Body Control (BCM); (LH kick panel)
- Chevrolet Cruze 2013: Body Control (BCM); (LH kick panel), w/opt ATH
- GMC Terrain 2010: Body Control (BCM); (LH side dash), body control
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13505326
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13500384
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13574844
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13504004
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13504494
- GMC Terrain 2011: Body Control (BCM); (LH side dash), body control, ID 13578420
- Chevrolet Equinox 2010: Body Control (BCM); (LH side dash), body control
Frequently Asked Questions
How does the cloning service work?
After you purchase, we will provide instructions for you to ship your original BCM to us. We then extract the unique vehicle data and transfer it to the replacement module. We ship the programmed module back to you, ready for installation.
Why is this better than buying a new BCM from a dealer?
Our service saves you significant money and time. You avoid the high cost of a new module and the separate, expensive programming fees charged by dealerships. Your replacement module arrives ready to install, no appointment necessary.
Do I need any special tools to install this?
For the physical installation, you typically only need basic hand tools to access and remove the module. No programming tools are required. However, as noted, a professional scan tool may be needed for post-installation procedures like an airbag sync if the light is on.
Is there a core charge or do I need to return my old part?
There is no core charge. We only need your original module temporarily for the data cloning process. You can keep your original module after the service is complete.
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. Please contact us with the specifics of your module’s failure, and our technicians can advise on the likelihood of a successful clone.
How long does the programming service take?
We pride ourselves on a fast turnaround. The programming is typically completed within 1-2 business days of us receiving your original module. We then ship it back to you promptly.