Is Your Chevy Sonic Experiencing Strange Electrical Problems?
The Body Control Module, or BCM, is the central command center for your vehicle’s electronic accessories. In a 2013-2014 Chevrolet Sonic, it manages everything from your power windows and door locks to the interior lights, security system, and even communicates with other critical modules. When the BCM starts to fail, it can cause a cascade of confusing and frustrating issues that can be difficult to diagnose. Instead of guessing which switch or wire is bad, the root cause is often this single, vital component.
Common Symptoms of a Failing 2013-2014 Sonic BCM
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights staying on, flickering, or refusing to turn on.
- ✔ The security system acting erratically, causing no-start conditions or the alarm to go off randomly.
- ✔ Inaccurate readings on the instrument cluster, such as the fuel gauge or speedometer.
- ✔ Warning lights appearing on the dash without a clear cause (e.g., airbag, ABS).
- ✔ Remote keyless entry failing to work consistently.
- ✔ Wipers or radio behaving unpredictably.
From the Diagnostic Bay
We had a 2014 Sonic come in that was driving the owner crazy. The radio would change stations on its own, the dome light would flicker at highway speeds, and occasionally, the car wouldn’t start, showing a security light on the dash. The owner had already replaced the battery and checked all the fuses. After hooking up our diagnostic scanner, we saw multiple communication error codes between various modules, all pointing back to one source. The BCM was failing internally, sending corrupt data across the vehicle’s network. A simple replacement wouldn’t work due to the anti-theft system. By cloning the original module’s data to a replacement unit, we provided a true plug-and-play solution that resolved all the ghost-like electrical issues in one go.
The Simple, Cost-Effective Solution: Our BCM Cloning Service
Dealerships will often charge a premium for a new BCM, followed by several hours of labor for installation and programming. Our service eliminates the need for expensive, vehicle-specific programming tools. We provide a straightforward, mail-in cloning service that makes this a job you can complete in your own garage. By purchasing this 2013-2014 Sonic BCM, you are getting a fully functional, tested replacement module that is programmed with your vehicle’s exact data.
How It Works:
- Purchase this service: Complete your order online. Ensure your contact information is accurate.
- We Contact You: Our team will reach out with clear instructions and a shipping address for you to send your original BCM.
- Ship Your Module: Carefully package and ship your original BCM to our facility.
- We Clone & Ship Back: Upon receipt, our technicians will professionally transfer all critical data (including VIN, immobilizer keys, and vehicle options) to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Installation and Post-Install Notes
The BCM on the 2013-2014 Sonic is located in the right-hand rear quarter panel. Once you receive the programmed module from us, installation is as simple as disconnecting the battery, swapping the modules, and reconnecting the battery. Because we’ve cloned your original data, the vehicle will recognize the new module as its own, making it a true plug-and-play installation.
In some cases, minor follow-up procedures may be necessary:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the airbag system with the BCM and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control function, a brake pedal position sensor recalibration may be required.
Always consult a factory service manual or a qualified technician for specific guidance related to your vehicle.
Part Number Compatibility
This module is a direct replacement for the following part numbers. Please verify your original module has one of these numbers before ordering.
- 13586589
- 13589093
- 13580689
Frequently Asked Questions
What exactly is a Body Control Module (BCM)?
The BCM is a computer in your car that controls and monitors many of the non-engine related electronic functions, like power windows, locks, lights, security systems, and wipers. It acts as a central hub for these systems.
Why do I need to send you my original BCM?
Your original BCM contains security information (immobilizer data) and vehicle-specific settings that are unique to your car’s VIN. By cloning this data to the replacement module, we make the new part plug-and-play, saving you from expensive and complex dealership programming.
Is this part truly plug-and-play?
Yes, in 99% of cases. Because we transfer all the data from your original module, the vehicle will accept the replacement as if it were the original. In rare instances, a minor relearn procedure like for the airbag system might be needed, as noted in the description.
How long does the cloning service take?
Once we receive your original module, our technicians typically complete the data transfer and prepare the replacement for shipment within 1-2 business days.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM has failed, we can still extract the necessary data from the memory chip. Please contact us before ordering if your module has significant water or fire damage.