Are you battling frustrating electrical gremlins in your Buick LaCrosse or other compatible GM vehicle? Intermittent power windows, a flickering dashboard, malfunctioning door locks, or a car that refuses to start are classic signs of a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, a faulty BCM can cause widespread and confusing issues. Instead of facing a costly trip to the dealership for a new module and complex programming, we offer a streamlined, reliable solution.
This is a comprehensive service for a replacement Body Control Module. We eliminate the programming headaches by cloning the essential data from your original BCM directly onto this replacement unit. This means the VIN, security information, and vehicle-specific options are perfectly preserved. The result is a true plug-and-play module tailored specifically for your car, saving you hundreds in dealer fees and diagnostic time. Simply purchase this service, send us your original BCM, and we’ll ship back a fully programmed, ready-to-install replacement.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Chevy Malibu with a complaint that was driving them crazy: the radio would randomly turn off, and the driver’s side power window would only work occasionally. They had already replaced the window switch and the radio fuse with no luck. After connecting my scan tool, I noticed several ‘Loss of Communication’ codes (U-codes) pointing to the BCM. These intermittent faults are typical when the BCM’s internal processors start to fail. Instead of a complex rewiring job, the fix was a new, properly programmed BCM. This is a perfect example of how a single failing module can create multiple, seemingly unrelated problems.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, your Body Control Module is the likely culprit:
- ✔ Power windows, mirrors, or door locks operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system preventing the car from starting (flashing security light).
- ✔ Horn, radio, or climate controls not functioning correctly.
- ✔ Multiple warning lights on the instrument cluster with no other apparent cause.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
A Straightforward Guide to Installation
Once you receive your programmed module from us, installation is simple. Our service handles the difficult part, leaving you with a direct swap. The BCM location varies by model, so always confirm its position for your specific vehicle (common locations are listed in the fitment section).
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the Original BCM: Find the BCM, typically located in the driver’s side kick panel, behind the dash, or in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Battery & Test: Reconnect the negative battery terminal. Start the vehicle and test all functions controlled by the BCM—lights, locks, windows, radio, etc.—to confirm the repair.
Important Post-Installation Notes: In some cases, additional vehicle-specific relearn procedures may be required. For instance, if the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A ‘Brake Pedal Position Relearn’ might also be necessary. Always consult a factory service manual for your vehicle’s specific requirements.
Verified Vehicle Compatibility
This Body Control Module is a direct fit for a wide range of General Motors vehicles. Please verify your part number and model from the list below to ensure compatibility. This module replaces part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564.
- Buick LaCrosse: 2014-2015 (LH kick panel)
- Buick LaCrosse: 2016 (LH kick panel, ID 13580698 or 13594564)
- Buick Regal: 2014-2017 (LH dash)
- Cadillac ELR: 2014-2016 (RH cowl) / 2016 Communication (RH engine compartment)
- Cadillac SRX: 2014-2016 (LH dash)
- Chevrolet Camaro: 2014 (RH dash, Conv), 2015 (RH dash)
- Chevrolet Malibu: 2014-2015 (LH kick panel)
- Chevrolet Malibu Limited: 2016 (VIN 1, LH kick panel)
- Chevrolet Spark EV: 2014-2016 (Left lower A-pillar, electric model)
- Chevrolet Volt: 2014-2015 (RH engine compartment)
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we will contact you with detailed instructions to ship your original BCM to us. Once we receive it, we transfer all the critical data to the replacement module and ship it back to you, typically within 1-2 business days.
Is this a plug-and-play part?
Yes! Because we clone the data from your original module, the replacement BCM we send you is 100% plug-and-play. No additional programming or trips to the dealer are required for it to function.
Do I need to return my old BCM as a core?
No, there is no core charge for this service. You only need to send us your original module for the data transfer service. You can keep it afterward.
What if my airbag light comes on after installation?
This is uncommon, but if it happens, it means the BCM and the airbag system (SDM) need to be re-synced. A professional mechanic with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.
Will this fix my specific problem?
This module will fix issues directly caused by a faulty BCM. If you’re experiencing the symptoms listed above, it’s a very strong candidate. For a definitive diagnosis, we always recommend consulting a qualified technician or referencing your vehicle’s factory service manual.