Are you dealing with baffling electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own? These are classic signs of a failing Body Control Module (BCM), the central command center for your car’s electronics. A bad BCM can make your vehicle unreliable and frustrating to drive. Going to the dealership often means high costs and long waits for programming. We offer a direct, cost-effective solution.
This is a comprehensive cloning service for your BCM. You simply send us your original module, and we transfer all its critical data—including VIN, mileage, and key programming—to a fully tested replacement unit. The module you receive back is a true plug-and-play solution, specifically configured for your vehicle. This process eliminates the need for expensive dealership tools or additional programming, getting you back on the road quickly and affordably.
Case Study: The Ghost in the Spark EV
A customer brought in a 2015 Spark EV with a list of problems that seemed completely unrelated. The radio would turn on and off, the dome light would flicker while driving, and occasionally the car wouldn’t recognize the key fob. They had already replaced the battery and checked all the fuses. After connecting my scanner, I saw a storm of communication error codes (U-codes) pointing to the BCM. Instead of a costly new module and hours of programming, we performed a cloning service just like this one. The replacement 2014-2016 Spark Body Control Module, with the original data transferred, solved every single issue instantly. It’s a perfect example of how a single failing module can create widespread, ghost-like problems.
Is Your GM Vehicle Showing These BCM Failure Signs?
- ✔️ Erratic or non-functional interior and exterior lights.
- ✔️ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔️ The anti-theft or security system light stays on, preventing the car from starting.
- ✔️ Dashboard warning lights appearing for no reason (e.g., ABS, Airbag).
- ✔️ A/C and climate control functions are unresponsive.
- ✔️ Diagnostic trouble codes (DTCs) related to communication errors, such as U0100, U0140, or other U-series codes.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On the 2014-2016 Spark EV, the Body Control Module is typically found behind the trim panel at the bottom of the driver-side A-pillar. For other models, its location can vary (see fitment list for common locations).
- ✔ Remove the Old Module: Carefully unplug the wiring harness connectors. 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 your newly programmed BCM in the same location and securely reconnect all wiring harnesses. Ensure they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair.
Important Post-Installation Steps
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Our Simple Mail-In Service
- ✔ After your purchase, we will contact you with shipping instructions.
- ✔ Carefully package and ship your original BCM to us.
- ✔ Once we receive it, our technicians will clone the data to the replacement module within 1-2 business days.
- ✔ We ship your ready-to-install module back to you and provide tracking information.
Verified Compatibility for Your Vehicle
This BCM is a direct fit for the following vehicles and part numbers. Please verify your part number is on this list before ordering.
Interchangeable Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
- Buick LaCrosse: 2014-2016 (LH kick panel)
- Buick Regal: 2014-2017 (LH dash)
- Cadillac ELR: 2014-2016 (RH cowl / RH engine compartment)
- Cadillac SRX: 2014-2016 (LH dash)
- Chevrolet Camaro: 2014-2015 (RH dash)
- Chevrolet Malibu: 2014-2015, 2016 Limited (LH kick panel)
- Chevrolet Spark: 2014-2016 (Electric model EV, left lower A-pillar)
- Chevrolet Volt: 2014-2015 (RH engine compartment)
Frequently Asked Questions
How does the cloning service work?
You purchase this service and ship your original BCM to us. We extract the unique programming from your module and transfer it to a replacement unit. We then ship the programmed replacement back to you, ready for installation without any further programming.
Is there a core charge?
No, there is no core charge for this service. You can keep your original module after we have completed the programming service.
What if my original module is damaged or unreadable?
In most cases, even with internal faults, we can still retrieve the necessary data. If your module is completely unreadable due to severe water or fire damage, we will contact you to discuss options, which may include a full refund.
Why is my airbag light on after installation?
The BCM communicates with the airbag system (SDM). Sometimes, they need to be re-synchronized. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
Do I need special tools to install this?
Basic hand tools are all that’s needed for the physical installation. However, as noted, a professional-grade scan tool might be necessary for post-install procedures like the airbag sync or brake pedal relearn, depending on your vehicle.