Restore Full Functionality to Your Vehicle’s Electronics
Are you dealing with frustrating and unpredictable electrical issues in your Chevrolet Spark or other GM vehicle? Flickering lights, malfunctioning power windows, or random warning indicators on your dash are often symptoms of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your car’s comfort and convenience features. When it fails, it can cause a wide range of problems that are difficult to diagnose. Simply swapping in a used BCM won’t work, as these modules are programmed with your vehicle’s specific Vehicle Identification Number (VIN) and security information.
Our professional programming service is the perfect solution. You send us your original BCM, and we expertly transfer all of its critical data to this fully tested replacement unit. This cloning process makes the replacement module a true plug-and-play component for your vehicle. You get a reliable fix without the exorbitant costs and scheduling hassles of a dealership visit. This is the most efficient way to get your car back to normal.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Spark EV with a complaint that stumped two other shops: intermittent no-start conditions and the security light flashing randomly. They had already replaced the battery and checked the ignition switch. Diagnostics showed a flurry of U-codes, indicating a network communication failure. In my experience, when multiple, unrelated modules lose communication simultaneously, the BCM is often the culprit acting as a faulty network gateway. We confirmed the BCM was failing. Instead of a costly new module and programming from the dealer, we used our cloning service. The customer mailed in their BCM, we transferred the data, and sent the replacement back. The car started perfectly, all codes were gone, and the customer saved hundreds of dollars.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-working power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on, preventing the car from starting.
- ✔ Horn, wipers, or other accessories activating on their own.
- ✔ False warnings on the instrument cluster (e.g., “Door Ajar”).
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or U0100.
- ✔ Inconsistent A/C and heater blower motor operation.
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 located at the base of the left lower a-pillar. For other models, refer to the fitment list for its specific location (e.g., LH kick panel, RH dash).
- ✔ Disconnect Connectors: Carefully unplug all electrical connectors from the old BCM. Most have a locking tab that needs to be pressed or lifted. Do not force them.
- ✔ Remove the Old Module: Unbolt the faulty BCM from its mounting bracket and remove it from the vehicle. This is the module you will ship to us for the cloning service.
- ✔ Install the New Module: Once you receive the programmed module back from us, simply mount it in place and reconnect all the electrical connectors securely.
Important Post-Installation Information
While our programming makes this a plug-and-play solution, some vehicle systems may require a recalibration after the BCM is replaced. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
- No Core Charge: You are not required to return your original module to us after the service is complete. There is no core charge or deposit.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for These Vehicles
This module is a direct replacement for part number 13590851 and is interchangeable with the following part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13591300, 13592376, 13593775, 13593776, and 13594564. It fits the following models:
- 2014-2016 Chevrolet Spark: electric model (EV), (left lower a-pillar)
- 2014-2015 Buick LaCrosse: (LH kick panel)
- 2016 Buick LaCrosse: (LH kick panel), ID 13580698 or 13594564
- 2014-2015 Chevrolet Malibu: (LH kick panel)
- 2016 Chevrolet Malibu: VIN 1 (4th digit, Limited), (LH kick panel)
- 2014-2015 Chevrolet Volt: (RH engine compartment)
- 2014-2016 Cadillac ELR: (RH cowl) or (RH engine compartment)
- 2014-2017 Buick Regal: (LH dash)
- 2014-2015 Chevrolet Camaro: (RH dash)
- 2014-2016 Cadillac SRX: (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 us. Once we receive it, we transfer the necessary data to the replacement module and ship it back to you, typically within 1-2 business days.
Will I need to program my keys again?
No. Because we clone all the data from your original module, including security information, your existing keys will work immediately upon installation.
Is this a guaranteed fix for my car’s problems?
This module will fix any issues directly caused by a faulty BCM. It’s crucial to have your vehicle properly diagnosed to confirm the BCM is the source of the problem before ordering.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data from the memory chip. Contact us if you have concerns about the condition of your module.
Do I need any special tools for installation?
No special tools are required for the installation itself, which is plug-and-play. However, as noted, a professional scan tool may be needed for post-installation procedures like the airbag system sync if the warning light appears.