Are you chasing down bizarre electrical issues in your Buick Verano or another compatible GM vehicle? One minute the power windows work, the next they don’t. The security light is flashing randomly, or worse, the car refuses to start. As a technician with over two decades of experience under the hood, I’ve seen these exact symptoms hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM).
The BCM is the central nervous system for your vehicle’s electronics, managing everything from interior lights and power locks to the anti-theft system. When it starts to fail, it can create a cascade of confusing and frustrating problems. Taking your car to the dealership often means a hefty bill for diagnostics, a new module, and expensive programming fees. We offer a smarter, more affordable solution.
This is a fully programmed BCM, ready for installation. Our service is simple: you purchase this module, and we’ll provide instructions for shipping your original BCM to our facility. Once we receive it, our expert technicians will transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. We then ship it back to you, ready to be installed. This cloning process makes the replacement a true plug-and-play fix, eliminating the need for a trip to the dealer or the use of advanced scan tools for programming.
Common Signs of a Failing GM BCM
If your vehicle is experiencing any of the following, a faulty BCM could be the root cause. I’ve seen these issues across the GM lineup, and they are classic indicators. Look out for diagnostic trouble codes (DTCs) like U0140, U0155, or B1001.
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ A flashing security light on the dashboard, often leading to a no-crank, no-start condition.
- ✔ False warnings appearing on the driver information center.
- ✔ Problems with the radio or climate control systems.
- ✔ Communication errors with other modules on the vehicle’s network.
A Technician’s Notebook: The Verano with a Mind of Its Own
A customer brought in a 2015 Buick Verano that was driving them crazy. The horn would blare when they used the turn signal, and the radio would randomly shut off. They had already replaced the battery and checked all the fuses. Diagnostics showed a handful of intermittent communication codes. Instead of shotgunning parts, we honed in on the BCM. After installing one of our pre-programmed modules, every single electrical gremlin vanished. It was a 30-minute fix that saved the customer hundreds in diagnostic time and dealership costs. This is the power of a proper, data-cloned BCM.
Your Straightforward BCM Installation Guide
Installing your programmed 2013-2017 Verano BCM is a manageable task for a confident DIYer. The location is typically below the center of the dash. While specific steps can vary, here is a general guide:
- Safety First: Always disconnect the negative terminal from your car’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the Verano, the BCM is usually found under the center of the dashboard. You may need to remove a trim panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, programmed BCM in the same location and reconnect all electrical connectors. Ensure they click securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—windows, locks, lights, horn, and radio. Note that some vehicles may require the additional procedures listed below.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a recalibration after the BCM is replaced. This is normal. Please be aware of the following potential requirements:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary for the proper function of brake lights and the traction control system.
Disclaimer: Always consult a factory service manual or a qualified professional for procedures specific to your vehicle’s year and model.
Verified Compatibility for Your Vehicle
This module is a direct fit for a wide range of GM vehicles and is interchangeable with several part numbers. Please verify your part number is on this list: 13584695, 13586273, 13580697, 13588447, 13589197, 13589324, 13589325. This part is confirmed to fit:
- 2013-2017 Buick Verano (Body Control (BCM); below center of dash)
- 2013-2017 Chevrolet Equinox / GMC Terrain (Body Control (BCM); LH side dash)
- 2013-2015 Chevrolet Cruze (Body Control (BCM); LH kick panel)
- 2016 Chevrolet Cruze Limited (Body Control (BCM); LH kick panel, VIN P)
- 2013-2014 Buick Encore / Chevrolet Trax (Body Control (BCM); LH side of dash)
- 2013 Chevrolet Malibu (Body Control (BCM); LH kick panel)
- 2013 Buick Regal / Cadillac SRX (Body Control (BCM); LH dash)
- 2013 Chevrolet Volt (Body Control (BCM); RH engine compartment, ID 13580697 or 13586273)
- 2014-2015 Chevrolet Spark (Body Control (BCM); left lower a-pillar, gasoline model)
- 2013-2014 Chevrolet Orlando (Body Control (BCM); below center console)
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with simple, prepaid shipping instructions to send your original BCM to us. We then transfer its data to the new module and ship it back to you, typically within 1-2 business days of receiving your original part.
Is this really plug-and-play?
Yes. Because we clone the data from your original module, the replacement is recognized by your vehicle’s other computers. This eliminates the need for expensive dealership programming. In some rare cases, a minor relearn procedure may be needed as noted above.
What if my original BCM is completely dead or missing?
If your BCM is non-communicative or lost, we may still be able to help by programming a module with your vehicle’s VIN. Please contact us before ordering to discuss your specific situation.
Do I need to return my old BCM after installation?
No. There is no core charge for this part. You only need to send us your original BCM for the initial data cloning service. You can keep it afterward.
Will this fix my specific problem?
This module will fix issues directly caused by a faulty BCM. While the symptoms listed are common indicators, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the source of your problem before ordering.