Restore Your Vehicle’s Brain without Dealership Hassles
If you’re dealing with bizarre electrical issues in your GM vehicle—like flickering interior lights, power windows with a mind of their own, or a car that refuses to start—the culprit is often 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. It acts as the central hub for your car’s body electronics, and when it goes, chaos ensues. Communication error codes like U0140 or U0155 might pop up, leaving you and even some shops scratching their heads.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional cloning service for the Programmed GM BCM 13580696. You simply send us your original BCM, and we transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this fully tested replacement unit. The result? A true plug-and-play module that is ready for installation the moment you receive it. This process completely bypasses the need for expensive dealership programming, saving you significant time and money.
From the Diagnostic Bay: The Case of the Confused Camaro
A customer brought in their 2013 Camaro with a laundry list of complaints: the radio would cut out, the turn signals worked intermittently, and sometimes the security light would stay on, preventing it from starting. They had already replaced the battery to no avail. My initial scan showed a network-wide communication failure pointing towards the BCM. Instead of quoting them for a new module plus hours of programming and key relearning at the dealer, we recommended our cloning service. We transferred the data from their failing BCM to a replacement unit. The customer swapped it in their own driveway in under an hour. All the gremlins were gone, instantly. This is the power of a properly prepared module.
Common Signs of a Failing BCM
A failing BCM can manifest in numerous ways, often mimicking other problems. If your vehicle is showing these symptoms, your BCM may be the root cause. This is especially true if you see diagnostic trouble codes (DTCs) like B1001, U0140, or other communication-related faults.
- ✔ Intermittent or non-functional power windows, locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lighting.
- ✔ Instrument cluster warning lights (like ABS, Airbag, or Security) illuminating for no reason.
- ✔ The vehicle’s anti-theft system preventing the engine from starting.
- ✔ Wipers or radio turning on and off by themselves.
- ✔ Failure of communication between various vehicle modules.
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is a manageable job for a DIY enthusiast. The goal is to get you back on the road quickly and confidently. Always disconnect the battery before starting any electrical work.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: The location varies by model (see fitment list below). Common locations include behind the driver’s or passenger’s side kick panel, under the dash, or in the engine compartment. Consult a service manual for your specific vehicle if unsure.
- Remove the Old Module: Carefully disconnect all electrical connectors from the original BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the replacement BCM in the same location. Reconnect all electrical connectors securely into their correct ports.
- Reconnect Power: Reattach the negative battery terminal.
- Final Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note the post-installation procedures below, as some vehicles may require an additional step.
Post-Installation Procedures
Because this module is cloned from your original, most vehicles will not require any additional steps. However, in some cases, a relearn procedure may be necessary:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and traction control functionality.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified professional if you are uncertain about any step.
Verified Compatibility for Your Vehicle
This module, part number 13580696, is a direct replacement for several other part numbers, including 123589093, 13588446, 13584692, and 13583542. It is confirmed to fit the following makes and models:
- Buick LaCrosse: 2012 (ID 13580696), 2013 – Body Control (BCM); (LH kick panel)
- Buick Regal: 2012 – Body Control (BCM); (LH dash)
- Buick Verano: 2012 – Body Control (BCM); (below center of dash)
- Cadillac SRX: 2012 – Body Control (BCM); (LH dash), ID 13580696
- Chevrolet Camaro: 2012-2013, 2014 (Cpe) – Body Control (BCM); (RH dash)
- Chevrolet Equinox: 2012 – Body Control (BCM); (LH side dash)
- Chevrolet Spark: 2013 – Body Control (BCM); (left lower a-pillar)
- Chevrolet Volt: 2012 – Body Control (BCM); (RH engine compartment)
- GMC Terrain: 2012 – Body Control (BCM); (LH side dash)
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 vehicle-specific data and transfer it to the replacement module. We ship the new, programmed module back to you, ready for installation.
Do I need to program this BCM?
No. The main benefit of our service is that the module arrives pre-programmed with your vehicle’s data. This means no additional programming or key relearning is required on your end, making it a true plug-and-play installation.
What if my airbag light is on after installation?
In some cases, the BCM needs to be synchronized with the airbag module (SDM). This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be done by any professional shop with a high-level diagnostic tool.
Is there a core charge for my old part?
No, there is no core charge. We need your original module to perform the data cloning service, but you are not charged a separate core fee.
Which part numbers does this module replace?
This BCM, part number 13580696, is a direct, compatible replacement for part numbers 123589093, 13588446, 13584692, and 13583542.