Restore Your Vehicle’s Electrical Functions with a Hassle-Free Solution
Are you dealing with bizarre electrical issues in your 2014-2016 Chevrolet Spark EV or another compatible GM vehicle? Flickering interior lights, power windows that have a mind of their own, or a security system that randomly activates can all point to a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, and when it fails, it can cause a cascade of frustrating and unpredictable problems. Replacing it at a dealership often involves steep costs for the part, labor, and mandatory programming. We offer a smarter, more affordable path forward.
Our service provides you with a fully functional, programmed BCM that is a direct replacement for your original. The process is simple: after your purchase, you’ll ship your original BCM to us. Our expert technicians will then transfer all the critical vehicle-specific data—like the VIN, security information, and key programming—to your replacement module. This cloning service makes the new unit completely plug-and-play. There’s no need for an expensive trip to the dealer for programming. We handle the technical work so you can get your car back on the road quickly and confidently.
From the Diagnostic Bay
I remember a 2015 Spark EV that came into the shop with a classic “ghost in the machine” complaint. The owner said the horn would sometimes blare when she used the turn signal, and other times the car just wouldn’t start, with no crank and no warning lights. We scanned it and found a slew of U-codes (communication errors), all pointing back to the BCM. A new BCM from the dealer was an option, but the programming fees alone were a tough pill to swallow. Instead, we used a service just like this. We cloned the original module, and the replacement part solved every single issue. It’s a testament to how crucial this data transfer is for a successful repair.
Common Signs of a Failing BCM
If your vehicle’s central computer is failing, you may experience one or more of the following symptoms. A professional diagnosis is always recommended, but these are strong indicators:
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system or alarm activates without reason.
- ✔ The horn honks intermittently or doesn’t work at all.
- ✔ Dashboard warning lights illuminate randomly.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes.
Your Straightforward Installation Guide
Installing your programmed BCM is a manageable task for a DIY enthusiast. For the 2014-2016 Spark EV, the BCM is located at the left lower A-pillar. Location varies for other models (see fitment list).
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the Original BCM: Access the BCM. This may require removing a kick panel or trim piece.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, programmed BCM in the same location. Securely reconnect all electrical connectors.
- Reconnect Power: Reattach the negative battery terminal. The vehicle’s data is already on the module, so it’s ready to go.
Important Post-Installation Information
In some cases, additional steps may be required after installation to ensure all systems function correctly. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after you install the BCM, a procedure called ‘Setup SDM Primary Key in BCM’ must be performed. This requires a professional-grade scan tool to sync the airbag system with the new BCM and clear the light.
- Brake Pedal Position Relearn: On certain models, a recalibration of the brake pedal position sensor might be necessary. This ensures your brake lights and traction control system operate as intended.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for vehicle-specific procedures.
Verified Vehicle Compatibility
This BCM is a direct fit for the following vehicles and part numbers. Please verify your part number is on this list before ordering. Part numbers include: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564.
- Chevrolet Spark: 2014-2016 (Body Control (BCM); left lower a-pillar, electric model (EV))
- Buick LaCrosse: 2014-2015, 2016 (Body Control (BCM); LH kick panel)
- Chevrolet Malibu: 2014-2015, 2016 (Limited, VIN 1) (Body Control (BCM); LH kick panel)
- Chevrolet Volt: 2014-2015 (Body Control (BCM); RH engine compartment)
- Cadillac ELR: 2014-2016 (Body Control (BCM); RH cowl)
- Buick Regal: 2014-2017 (Body Control (BCM); LH dash)
- Chevrolet Camaro: 2014-2015 (Body Control (BCM); RH dash)
- Cadillac SRX: 2014-2016 (Body Control (BCM); LH dash)
Frequently Asked Questions
How does the programming service work?
After you place your order, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, we extract the necessary data and flash it onto the replacement module. We then ship the ready-to-install BCM back to you.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary key and security information is stored within your original BCM, and we transfer that data directly. Your existing keys will work seamlessly with the new module.
What if my original BCM is completely dead or can’t be read?
In the rare event that your module’s data is corrupted and cannot be read (e.g., due to severe water or fire damage), we will contact you to discuss options, which may include a full refund. However, in over 98% of cases, we can successfully retrieve the data.
Is this BCM a plug-and-play solution?
Yes. Because we clone the data from your original unit, the replacement BCM is plug-and-play. You will not need to have it programmed by a dealer. Some minor relearn procedures, like for the airbag or brake pedal sensor, may be needed post-installation as noted.
Is there a core charge?
No, there is no core charge for this service. You are free to keep your original module after we have completed the data transfer.