Are you dealing with baffling electrical issues in your vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or even a no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). As the central nervous system for your car’s comfort and convenience features, when the BCM goes bad, it can create a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it can affect your vehicle’s security and basic functions.
Instead of facing a costly bill and long wait times at the dealership, we offer a straightforward and reliable solution. This listing is for a replacement Body Control Module, part number 13589637, that comes pre-programmed specifically for your vehicle. Our expert service involves cloning the data from your original BCM directly onto this replacement unit. This ensures all your vehicle’s specific settings, key information, and security parameters are perfectly preserved, making the installation process as simple as swapping the part.
A Technician’s Notebook
I recently worked on a 2015 Spark EV that had its owner completely stumped. The car would intermittently refuse to charge, the interior lights would pulse randomly, and the radio would shut off for no reason. Standard diagnostic scans showed a flurry of communication errors (U-codes) but no single, obvious cause. After checking the main grounds and power feeds, experience pointed me to the BCM. These modules manage so many data networks that when they start to fail internally, they can flood the system with corrupted data, causing chaos. By cloning his original module to our replacement unit, we solved all the issues in one go, saving the customer from what would have been an expensive diagnostic goose chase at the dealer.
Solving Issues with a Programmed 2014-2016 Spark BCM
A faulty BCM doesn’t just cause annoying glitches; it can disrupt the core electronic functions of your car. Our programming service is designed to be the most efficient fix. You simply ship your original module to us. Upon arrival, our technicians will perform a full data transfer to the replacement unit. We then ship the plug-and-play module back to you, typically within one business day. This process eliminates the need for expensive, specialized scan tools or a trip to the dealership for programming, getting you back on the road quickly and affordably.
Common Signs of a Failing BCM
- ✔️ Erratic or non-functional interior and exterior lights (headlights, dome lights).
- ✔️ Power windows, door locks, or mirrors not working correctly.
- ✔️ Vehicle security system engaging randomly or preventing the car from starting.
- ✔️ The horn honking unexpectedly or not working at all.
- ✔️ Instrument cluster gauges behaving erratically or going dark.
- ✔️ Diagnostic trouble codes related to communication failures, such as U0100, U0140, or other U-series codes.
- ✔️ Intermittent no-start or no-crank conditions.
Your Straightforward BCM Swap Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On the 2014-2016 Spark EV, the Body Control Module is typically located behind the trim panel at the left lower a-pillar, near the driver’s side kick panel. For other models, consult your service manual for the exact location (e.g., LH dash, RH cowl).
- ✔ Remove the Old Module: Carefully disconnect the wiring harnesses connected to the BCM. They have locking tabs that need to be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in place of the old one. Securely reconnect all wiring harnesses, ensuring each connector clicks into place.
- ✔ Final Steps: Reconnect the negative battery terminal. Start the vehicle and test all related functions—lights, locks, windows, etc. Note the post-installation procedures below, as some relearns may be necessary.
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:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the modules. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a recalibration of the brake pedal position sensor may be needed to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part number 13589637 and is interchangeable with the following part numbers: 13580698, 13578458, 13589115, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564. It is confirmed to fit the following vehicles:
- 2014-2016 Chevrolet Spark (electric model EV)
- 2014-2015 Buick LaCrosse
- 2016 Buick LaCrosse (ID 13580698 or 13594564)
- 2014-2017 Buick Regal
- 2014-2015 Chevrolet Malibu
- 2016 Chevrolet Malibu (VIN 1, Limited)
- 2014-2015 Chevrolet Volt
- 2014-2015 Chevrolet Camaro
- 2014-2016 Cadillac SRX
- 2014-2016 Cadillac ELR
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we transfer the essential vehicle-specific data—like VIN, mileage, key codes, and option configurations—from your original BCM to the replacement unit. This makes the new module an exact digital copy of the old one, allowing it to work in your car without any additional programming.
Do I need to go to the dealer after installing this?
No. Our programming service is designed to completely eliminate the need for dealer intervention. The module arrives ready to install and function. The only exception might be an optional relearn procedure, like for the airbag system, if a warning light appears.
How long does the programming service take?
Once we receive your original BCM, we typically program the replacement unit and have it shipped back out to you within 24-48 business hours. We’ll send you tracking information as soon as it’s on its way.
Is this a guaranteed fix for my car’s electrical problems?
If your vehicle’s symptoms match those of a failing BCM and the module has been professionally diagnosed as the fault, this part is the correct solution. It resolves issues directly caused by a malfunctioning Body Control Module.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is non-communicative, we can still extract the necessary data for cloning. Please contact us before ordering if your module is severely damaged by water or fire so we can confirm the viability of the service.
Do I need to send my keys with the module?
No, you do not need to send your keys. All the necessary security information is stored within the BCM itself, which we will transfer during the cloning process.