Restore Your Vehicle’s Electrical Functions and End the Frustration
Are you dealing with baffling electrical issues in your 2014-2016 Chevrolet Spark EV or another compatible GM vehicle? Flickering lights, power windows with a mind of their own, or a security system that randomly acts up are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your car’s comfort and convenience features. When it falters, it can make your vehicle feel unreliable and frustrating to drive. This isn’t just an inconvenience; it can affect safety systems and even prevent your car from starting.
Instead of facing a costly trip to the dealership for a new module and expensive programming fees, we offer a straightforward and reliable solution. This listing is for a replacement BCM that comes fully programmed with your vehicle’s specific data. We achieve this through our simple and secure mail-in cloning service, creating a true plug-and-play module that gets you back on the road without the dealership hassle.
A Technician’s Notebook: The Ghost in the Malibu
A few months back, a 2015 Malibu came into the shop with a list of symptoms that had stumped two other mechanics. The owner complained of intermittent radio failure, dome lights staying on, and occasional no-crank situations. No consistent trouble codes were stored, making it a diagnostic nightmare. After checking all the usual suspects—battery, grounds, alternator—I focused on network communication. Using a scope, I saw garbled data coming from the BCM. It wasn’t failing completely, but it was corrupting the data bus just enough to cause these random, ghost-like problems. By cloning the original, failing BCM onto one of our tested replacement units, we solved every single issue. The customer was thrilled to have their car back to normal without paying for hours of diagnostic guesswork or a brand-new, unprogrammed dealer part. This is why cloning is my preferred method—it preserves the car’s unique identity for a seamless repair.
How Our Simple Mail-In Programming Service Works
We’ve streamlined the process to be as easy as possible. After you complete your purchase, we will contact you with detailed instructions to ship your original BCM to our facility. Please ensure your contact information is accurate at checkout. Once we receive your module, our expert technicians will extract the essential vehicle data and transfer it to the replacement BCM. This cloning process makes the new module an exact match for your car. We then ship the ready-to-install BCM back to you, typically with tracking information sent the same day. There’s no core charge, so you can keep your original part.
Common Signs of a Failing BCM in Your GM Vehicle
- ✔ Erratic or non-functional power windows, door locks, or interior/exterior lights.
- ✔ The security system or keyless entry works intermittently or not at all.
- ✔ The vehicle won’t start, and you hear a rapid clicking sound from the dash area.
- ✔ Multiple, unrelated warning lights appear on the instrument cluster.
- ✔ Diagnostic trouble codes related to communication loss, such as U0100, U0140, or other U-series codes.
- ✔ Horn honking unexpectedly or wipers activating on their own.
A Straightforward Guide to Installation
- ✔ 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 BCM is typically found behind the trim panel at the left lower A-pillar. For other models, its location may vary (e.g., LH kick panel, under the dash). Consult a service manual if you’re unsure.
- ✔ Remove the Old Module: Carefully disconnect the electrical connectors. They have locking tabs that need to be released. Once unplugged, unbolt or unclip the old BCM from its mounting bracket.
- ✔ Install the New Module: Mount your newly programmed BCM and securely reconnect all electrical connectors. 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 Information
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 possibilities:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary to ensure correct brake light operation and traction control functionality.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a qualified professional if you are uncertain about any procedure.
Will This Fit My Vehicle? Cross-Reference Guide
This BCM is a direct replacement for part number 13593776 and is interchangeable with the following part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, and 13594564. It is verified to fit the following models:
- 2014-2016 Chevrolet Spark: electric model (EV), located at left lower a-pillar
- 2014-2015 Buick LaCrosse: located at LH kick panel
- 2016 Buick LaCrosse: ID 13580698 or 13594564, located at LH kick panel
- 2014-2015 Chevrolet Malibu: located at LH kick panel
- 2016 Chevrolet Malibu: VIN 1 (Limited), located at LH kick panel
- 2014-2017 Buick Regal: located at LH dash
- 2014-2016 Cadillac SRX: located at LH dash
- 2014-2015 Chevrolet Volt: located at RH engine compartment
- 2014-2016 Cadillac ELR: Body Control, located at RH cowl
- 2014 Chevrolet Camaro: Convertible, located at RH dash
- 2015 Chevrolet Camaro: located at RH dash
Frequently Asked Questions
How exactly does the mail-in cloning service work?
After you purchase, we’ll email you a prepaid shipping label and instructions. You simply box up your original BCM and send it to us. We then transfer its unique programming and security data to the replacement module and ship it back to you, ready for installation.
Is this really plug-and-play? Will I need to visit a dealer?
Yes, because we clone your original module’s data, the replacement unit is 100% plug-and-play. It eliminates the need for any dealer or locksmith programming, saving you time and money.
Do I need to send my keys or any other parts?
No, we only need your original Body Control Module. The key and security information is stored within the BCM itself, which is what we transfer during the cloning process.
What if my airbag or another warning light comes on after I install it?
In some cases, a system like the airbag module (SDM) may need to be re-synced with the BCM. This is a simple procedure called ‘Setup SDM Primary Key’ that can be performed by any competent repair shop with a professional-grade diagnostic tool.
What is the turnaround time for the programming service?
We pride ourselves on a fast turnaround. Most modules are programmed and shipped back out within 24-48 hours of us receiving them.