Restore Full Functionality to Your GM Vehicle with a Plug-and-Play BCM
Are you battling bizarre electrical issues in your 2014-2016 Buick LaCrosse or another compatible GM model? Flickering lights, malfunctioning power windows, a dead key fob, or a security system that randomly acts up are all classic signs of a failing Body Control Module (BCM). As a technician with over 20 years of experience, I’ve seen how a faulty BCM can turn a reliable car into a source of daily frustration. The BCM is the central hub for your vehicle’s body electronics, and when it fails, it can create a cascade of confusing problems.
Forget expensive dealership visits and the hassle of programming a new module from scratch. We offer a straightforward and reliable solution. This service provides you with a quality replacement LaCrosse Body Control Module that is precisely programmed with the data from your vehicle’s original unit. This cloning process ensures that all your car’s specific settings, security information (like key data), and options are perfectly transferred. The result is a true plug-and-play module that restores your vehicle’s electronics without needing any further dealer intervention.
From the Diagnostic Bay: The Case of the Haunted Malibu
A customer brought in a 2015 Malibu with a list of complaints that sounded like the car was possessed. The radio would change stations on its own, the interior lights would flicker while driving, and sometimes the remote start just wouldn’t work. They had already replaced the battery and checked the alternator. After hooking up my scanner, I saw a slew of communication error codes (U-codes) pointing to the BCM. Instead of quoting them over a thousand dollars for a new module and programming at the dealer, we performed this exact cloning service. They sent us their faulty BCM, we transferred the data to a replacement unit, and shipped it back. They installed it in under 30 minutes in their driveway, and every single electrical gremlin was gone. It’s a perfect example of how the right part and service can save hundreds of dollars and a massive headache.
Is Your Vehicle Showing These BCM Failure Symptoms?
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not working at all).
- ✔ Key fob not being recognized or intermittent remote start/lock functions.
- ✔ Security or anti-theft system lights on the dash, or a no-start condition.
- ✔ A dashboard that lights up like a Christmas tree with multiple, unrelated warning lights.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or other communication loss codes stored in various modules.
Your Step-by-Step BCM Installation Guide
Installing your programmed LaCrosse Body Control Module is a straightforward process that a confident DIYer can handle. The location varies slightly by model, so always confirm its position in your specific vehicle (e.g., LH kick panel in the LaCrosse, RH dash in the Camaro).
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: Find the module, which is typically located in the driver’s or passenger’s side kick panel, behind the dash, or in the engine bay area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your newly programmed BCM in the same location and securely re-attach the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—lights, windows, locks, wipers, and the radio—to confirm proper operation.
Important Post-Installation Notes
In some cases, additional synchronization procedures may be needed. If the airbag light is illuminated, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure proper brake light and stability control function. Always consult a factory service manual for your specific vehicle if you are unsure.
Guaranteed Fitment for These GM Models
This BCM programming service is compatible with units bearing part numbers 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, or 13594564. It fits the following vehicles:
- Buick LaCrosse: 2014-2016
- Buick Regal: 2014-2017
- Cadillac ELR: 2014-2016
- Cadillac SRX: 2014-2016
- Chevrolet Camaro: 2014-2015
- Chevrolet Malibu: 2014-2015, 2016 (Limited)
- Chevrolet Spark EV: 2014-2016
- Chevrolet Volt: 2014-2015
Frequently Asked Questions
How does this mail-in programming service work?
It’s simple. After you purchase, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, our technicians will extract the unique vehicle data and transfer it to your replacement module. We then ship the fully programmed, ready-to-install BCM back to you, typically within one business day of receipt.
Why do I need to send you my original module?
Your original BCM contains vital security information, key programming, and vehicle-specific options. By cloning this data, we ensure the replacement LaCrosse Body Control Module is a perfect match for your car, preventing the need for expensive and complicated programming at a dealership.
Is this part truly plug-and-play?
Yes, in over 99% of cases. Because we transfer all the necessary data from your original module, the replacement unit will be ready for installation and operation as soon as you receive it. No additional programming is required for standard vehicle functions.
What if my airbag light comes on after installation?
This can occasionally happen. It means the new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by any professional mechanic with a capable diagnostic tool.
Is there a core charge for my old part?
No, there is no core charge. After we have cloned the data, we will ship your original module back to you along with the programmed replacement. You can keep it as a spare or for your records.