Are you battling bizarre electrical issues in your GM vehicle? Flickering lights, unresponsive power windows, or random warning messages on your dash are classic signs 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 car into a source of daily frustration. The dealership solution often involves a new module, expensive programming fees, and significant downtime. We offer a smarter, more efficient fix.
This is a comprehensive cloning service for the GM Body Control Module, part number 13580696 (and its equivalents like 13588446). Instead of you having to get a new module programmed by a dealer, we transfer all the critical data from your original BCM directly onto this replacement unit. This makes the replacement completely plug-and-play. Your vehicle’s specific key codes, VIN, and other security information are perfectly mirrored, ensuring seamless integration and function right out of the box.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or remote keyless entry working intermittently or not at all.
- ✔ The security or anti-theft system light stays on, preventing the car from starting.
- ✔ False warning messages appearing on the driver information center (e.g., “Service Airbag,” “Service Traction Control”).
- ✔ Diagnostic trouble codes (DTCs) related to communication failures, such as U0140, U0155, or other U-codes pointing to a loss of communication with the BCM.
- ✔ Horn sounding unexpectedly or not working when pressed.
A Technician’s Notebook: The Case of the Haunted Equinox
A customer brought in a 2012 Chevy Equinox with a list of complaints that sounded like the vehicle was possessed. The radio would shut off, the dome lights would flicker while driving, and the turn signals worked only when they wanted to. They had already replaced the battery, but the problems persisted. A quick scan revealed a dozen communication codes, all pointing back to the BCM. In my shop, I’ve seen this hundreds of times. The location of the GM Body Control Module on these platforms makes it susceptible to water intrusion from a leaky cowl or windshield seal. Even a small amount of moisture can corrode the board and cause these chaotic electrical gremlins. Our cloning service is the perfect fix, restoring function without the high cost of a dealership visit.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate Your BCM: The module’s location varies. Common spots include behind the driver’s or passenger’s side kick panel, under the dash, or in the engine compartment (as in the Volt). Consult your vehicle’s service manual for the exact position.
- ✔ Remove the Original Module: Carefully unplug all electrical connectors. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the Replacement: Mount the new, programmed module in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions controlled by the BCM: lights, locks, windows, horn, and wipers.
Important Post-Installation Information
While our cloning process makes this a plug-and-play repair, some GM systems require a ‘handshake’ after a new module is introduced. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, it’s not a fault in the part. The system simply needs to be re-synced. A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure accurate brake light operation and to prevent issues with the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified mechanic if you are unsure about any step.
Guaranteed Fitment for Your Vehicle
This cloning service is compatible with BCMs bearing part numbers 13580696, 123589093, 13588446, 13584692, or 13583542. It is designed for the following makes and models:
- Buick LaCrosse: 2012 (ID 13580696), 2013
- Buick Regal: 2012
- Buick Verano: 2012
- Cadillac SRX: 2012 (ID 13580696)
- Chevrolet Camaro: 2012-2013, 2014 (Coupe)
- Chevrolet Equinox: 2012
- Chevrolet Spark: 2013
- Chevrolet Volt: 2012
- GMC Terrain: 2012
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will provide you with instructions to ship your original BCM to us. Once we receive it, our technicians will transfer its data to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to send my original module if it’s dead or water damaged?
Yes, in most cases, we can still retrieve the necessary data even from non-functional or water-damaged modules. Please contact us with details about your module’s condition if you have concerns.
Is this a plug-and-play solution?
Absolutely. Because we clone your original data, this replacement GM Body Control Module requires no additional programming. It will work with your existing keys and vehicle systems upon installation.
What if my part number isn’t an exact match but is on your list?
The part numbers listed (13580696, 123589093, 13588446, etc.) are interchangeable. As long as your original part number is in our compatibility list, this service will work for you.
Is there a core charge?
No, there is no core charge. You are free to keep your original module after the service is complete.