If your 2014-2016 Buick LaCrosse is suddenly plagued by bizarre electrical issues, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable car into a source of constant frustration. It’s the central hub for your vehicle’s body electronics, and when it goes, it can feel like the car has a mind of its own. This isn’t just a part; it’s a solution that gets you back on the road without the exorbitant costs and headaches of dealership programming.
Our unique service makes this complex repair simple. You purchase this listing, and we’ll coordinate with you to ship your original BCM to our facility. We then transfer all the critical vehicle-specific data—like VIN, mileage, and key information—to this fully tested replacement module. The result? A true plug-and-play 2014-2016 LaCrosse BCM that is ready for installation the moment you receive it. You avoid towing fees, bypass dealership scheduling, and eliminate the need for expensive diagnostic tools for programming.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Chevy Malibu with a classic ‘gremlin’ case. The radio would turn off randomly, the interior lights would flicker, and occasionally the power windows wouldn’t respond. They had already replaced the battery and alternator with no luck. A quick scan showed a slew of U-codes (communication errors), pointing towards a network issue. Instead of chasing wires for hours, my experience pointed to the BCM. We swapped in a cloned module, and every single issue vanished. It’s a reminder that the BCM is the conductor of the orchestra; when it’s off-key, the whole performance suffers.
Common Signs of a Failing BCM
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, your Body Control Module is the likely culprit:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lighting (flickering, staying on, or not working at all).
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Dashboard warning lights illuminating without a clear cause (e.g., ABS, Airbag, Traction Control).
- ✔ Communication loss Diagnostic Trouble Codes (DTCs), such as U0100, U0140, or other U-series codes.
- ✔ Horn or windshield wipers activating unexpectedly.
A Straightforward Guide to Installation
Our cloning service handles the difficult part, making your job much easier. Here is a general guide to the process:
- Step 1: Purchase & Coordinate. After you place your order, we will contact you with instructions for shipping your original BCM to us. Please ensure your contact information is correct.
- Step 2: Safely Remove Your Module. Disconnect the negative battery terminal. Locate your BCM (its location is listed in the fitment section below) and carefully disconnect the wiring harnesses and remove it from the vehicle.
- Step 3: Ship It. Securely package your original BCM and ship it to our facility using the provided address.
- Step 4: We Program, You Relax. Once we receive your module, we will perform the data transfer to the replacement unit and ship it back to you, typically within 1-2 business days. We will send you tracking information.
- Step 5: Install the Solution. Install your newly programmed BCM, reconnect the wiring harnesses and the negative battery terminal.
- Step 6: Final Checks. Start the vehicle and verify that all electronic functions are restored. Note the potential post-installation procedures below.
Important Post-Installation Notes
In some cases, minor relearn procedures may be needed after installation. This is normal and ensures all related vehicle systems are properly synced with the ‘new’ BCM.
- Airbag System Sync: If your airbag light is on after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the BCM.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration might be necessary.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a qualified professional for procedures specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles and part numbers. Please verify your part number or vehicle model to ensure compatibility. This service covers part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564.
- Buick LaCrosse (2014-2015): Body Control (BCM); (LH kick panel)
- Buick LaCrosse (2016): Body Control (BCM); (LH kick panel), ID 13580698 or 13594564
- Buick Regal (2014-2017): Body Control (BCM); (LH dash)
- Cadillac ELR (2014-2016): Body Control (BCM); (RH cowl)
- Cadillac ELR (2016): Communication; (RH engine compartment)
- Cadillac SRX (2014-2016): Body Control (BCM); (LH dash)
- Chevrolet Camaro (2014-2015): Body Control (BCM); (RH dash)
- Chevrolet Malibu (2014-2015): Body Control (BCM); (LH kick panel)
- Chevrolet Malibu (2016): Body Control (BCM); VIN 1 (Limited), (LH kick panel)
- Chevrolet Spark (2014-2016): Body Control (BCM); (left lower a-pillar), electric model (EV)
- Chevrolet Volt (2014-2015): Body Control (BCM); (RH engine compartment)
Frequently Asked Questions
2014-2016 LaCrosse BCM
Is this a guaranteed fix for my car’s problems?
This programmed will fix all issues directly caused by a faulty BCM. However, it’s crucial that the vehicle is diagnosed correctly. This part will not fix problems related to wiring, sensors, or other modules. If you’re unsure, we recommend consulting a professional mechanic for a thorough diagnosis.