Is Your GM Vehicle Experiencing Strange Electrical Problems?
If your 2014-2016 Buick LaCrosse, Malibu, Regal, or other compatible GM vehicle is plagued by bizarre electrical gremlins, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central command center for your car’s body electronics, managing everything from your power windows and locks to your interior lights and security system. When it starts to fail, it can create a cascade of confusing and frustrating issues that can be difficult to diagnose.
Diagnosing a Faulty LaCrosse Body Control Module
A failing BCM doesn’t always trigger a check engine light. Instead, you’ll notice a pattern of erratic behavior from your vehicle’s electronic accessories. This module is the solution for restoring order and getting your car’s features working correctly again.
From the Diagnostic Bay
We had a 2015 Chevy Malibu come in that would intermittently refuse to start. The battery was good, the starter was fine, but the security light would flash, and the engine wouldn’t turn over. After hours of chasing wires, we traced the issue to an internal fault in the BCM. It was failing to recognize the properly coded key, triggering the anti-theft system at random. A programmed replacement BCM solved the problem instantly, saving the customer from being stranded again.
Common Symptoms of BCM Failure
- ✔ Erratic interior or exterior lights (flickering, staying on, or not turning on at all).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The key fob or remote start system stops working reliably.
- ✔ The vehicle’s security system acts up, causing false alarms or no-start conditions.
- ✔ Instrument cluster gauges behaving erratically or warning lights appearing for no reason.
- ✔ HVAC (heating and air conditioning) controls become unresponsive.
- ✔ Radio or infotainment system malfunctions.
A Simple, Plug-and-Play Solution
Forget expensive dealership visits and complex programming procedures. Our professional cloning service makes this repair straightforward and cost-effective. Here’s how it works: you purchase this listing and ship your original BCM to us. We then extract the unique, vehicle-specific data from your module and transfer it directly onto this replacement unit. The result is a BCM that is 100% plug-and-play. Simply install it, and your vehicle will recognize it as the original, restoring all functions without any additional programming required.
Installation and Post-Install Considerations
Installation is typically straightforward, as the BCM is often located in an accessible area like the driver’s or passenger’s kick panel or behind the dash. After installing your programmed module, be aware of these potential procedures:
- Airbag System Sync: In some cases, the airbag warning light may illuminate after installation. This is because the new BCM needs to be synchronized with the airbag system’s SDM (Sensing and Diagnostic Module). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
- Brake Pedal Position Relearn: You may need to perform a brake pedal position sensor recalibration. This ensures your brake lights and traction control system function as intended. This procedure can also be completed with a compatible diagnostic tool.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for Multiple Models
This BCM is a direct replacement for a wide range of General Motors vehicles. Please verify that your original module’s part number is on this list:
Compatible Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
This part will fit these makes and models with these options:
- LACROSSE 14-15 Body Control (BCM); (LH kick panel)
- LACROSSE 16 Body Control (BCM); (LH kick panel), ID 13580698 or 13594564
- MALIBU 14-15 Body Control (BCM); (LH kick panel)
- MALIBU 16 Body Control (BCM); VIN 1 (4th digit, Limited), (LH kick panel)
- VOLT 14-15 Body Control (BCM); (RH engine compartment)
- ELR 14-16 Body Control (BCM); (RH cowl)
- REGAL 14-17 Body Control (BCM); (LH dash)
- CAMARO 14-15 Body Control (BCM); (RH dash)
- SRX 14-16 Body Control (BCM); (LH dash)
- SPARK 14-16 Body Control (BCM); (left lower a-pillar), electric model (EV)
Frequently Asked Questions
What is this BCM cloning service?
Our cloning service involves transferring the critical vehicle-specific data (like VIN, mileage, and key information) from your original BCM to this replacement unit. This makes the replacement module plug-and-play, avoiding the need for expensive dealership programming.
How does the process work?
After you place your order, we will contact you with detailed instructions on how to ship your original BCM to our facility. Once we receive it, we perform the data transfer and ship the programmed replacement module back to you, typically within 1-2 business days.
What if my original BCM is not communicating?
In most cases, even if the BCM has failed, we can still extract the necessary data. If your module is severely damaged (e.g., by fire or water), please contact us before ordering to discuss options.
Will I need any special tools to install this?
You will only need basic hand tools to remove and replace the module itself. While the module is plug-and-play, as noted above, some vehicles may require a professional scan tool for post-installation procedures like an airbag system sync or brake pedal position relearn.
Is there a core charge?
No, there is no core charge. We require your original module only for the data transfer service. You do not need to send it back after you receive the programmed replacement.