Tired of Unpredictable Electrical Problems in Your GM Vehicle?
If your 2011 Buick Regal, or another compatible GM model, is suddenly behaving like it’s possessed, you’ve come to the right place. Flickering lights, power windows with a mind of their own, a security light that won’t turn off, 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 malfunctions, it creates chaos. A trip to the dealership often means a hefty bill for a new module plus hours of labor for programming. We offer a smarter, more affordable solution.
This is a replacement BCM that comes fully programmed with your vehicle’s specific data. How? Through our simple and reliable mail-in cloning service. After your purchase, you’ll ship us your original BCM. My team of technicians will then perform a full data transfer, cloning the vital information—like VIN, key data, and security settings—onto this replacement unit. We ship it back to you ready for installation. The result is a true plug-and-play module that restores function without requiring any further programming from a dealer. It’s the most direct path to getting your car back to normal.
From the Diagnostic Bay: The Case of the Confused LaCrosse
A few months back, a 2012 Buick LaCrosse was towed to our shop. The owner was at his wit’s end. The car would randomly refuse to start, the radio would cut out, and the interior lights would flicker. He’d already replaced the battery and alternator to no avail. On the scan tool, we saw a flood of U-codes (U0140, U0155), indicating a loss of communication between modules. This immediately pointed my suspicion toward the BCM. After confirming power and ground to the module were good, we knew the BCM itself was the culprit. Instead of a costly new unit from the dealer, we used a cloned BCM just like this one. The installation took less than 30 minutes, and every single electrical gremlin was gone. It’s a textbook example of how a failing BCM can mimic other problems, and how this service provides a precise, effective fix.
Common Signs of a Failing GM BCM
A faulty BCM can cause a wide range of confusing symptoms. If your vehicle is experiencing several of the issues below, your Body Control Module is the likely cause. Look out for communication-related Diagnostic Trouble Codes (DTCs) like U0140, U0100, or B1001.
- ✔ Unresponsive or erratic power windows and door locks
- ✔ Interior or exterior lights staying on or not turning on at all
- ✔ The security or anti-theft light staying illuminated, preventing the car from starting
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ Wipers activating on their own or not responding to the switch
- ✔ Instrument cluster gauges behaving erratically or going dark
- ✔ Key fob not being recognized by the vehicle
A Straightforward Guide to Your BCM Installation
Installing your programmed BCM is a simple process. While the location varies by model (e.g., LH kick panel in a LaCrosse, RH dash in a Camaro), the general steps are consistent.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: Find your original BCM. Common locations include behind the driver’s or passenger’s side kick panels or under the dash.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your newly programmed BCM in the same location and reconnect all the electrical connectors securely.
- Reconnect Power: Re-attach the negative battery terminal.
- Test Functionality: Start the vehicle and test all body functions—lights, windows, locks, wipers, etc.—to confirm the repair was successful.
Important Post-Installation Note: In some cases, additional steps may be needed. If your airbag light is on, a professional scan tool is required for the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. Always consult a factory service manual for your specific vehicle if you are unsure.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 13579004 and is interchangeable with a wide range of other part numbers including: 13580198, 13582396, 13583450, 13586856, 13582688, 13586278, 13501737, 13501739, 13577924, 13580773, and 13583451. It is guaranteed to fit the following models:
- Buick LaCrosse: 2011, 2012
- Buick Regal: 2011 (w/opt AUA)
- Cadillac SRX: 2011, 2012
- Chevrolet Camaro: 2011 (Convertible)
- Chevrolet Cruze: 2012
- Chevrolet Equinox: 2011
- Chevrolet Orlando: 2012
- Chevrolet Volt: 2011, 2013
- GMC Terrain: 2011
Note: Please verify the part number on your original module to ensure a perfect match.
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we will contact you with detailed instructions on how to ship your original BCM to our facility. Once we receive it, we transfer all the critical data to the replacement module and ship it back to you, typically within 1-2 business days.
Will I need to have this BCM programmed by a dealer?
No. Our cloning service makes this a true plug-and-play solution. All the necessary programming is done by our technicians before we ship the part to you. This saves you hundreds in dealership fees.
What happens if I don’t send in my original BCM?
The service cannot be completed without your original module. The data on your BCM is unique to your vehicle’s VIN and security system. We need that data to make the replacement unit work correctly in your car.
Is this a guaranteed fix for my car’s problems?
This module will fix issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before ordering.
Do I need to send my keys with the BCM?
No, you do not need to send your keys. All the necessary key data is stored within the BCM itself, and we will clone that information to the new module. Your existing keys will work seamlessly after installation.
What is a core charge?
There is no core charge with this service. You can keep your original, non-working module after you send it to us for the data transfer.