Restore Your GM’s Electrical System with a Plug-and-Play BCM
Are you battling bizarre electrical gremlins in your 2014-2016 Buick LaCrosse or other compatible GM vehicle? Flickering lights, malfunctioning windows, a car that refuses to start, or a dashboard lit up with communication error codes are classic signs of a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can cause widespread and frustrating issues. This is your reliable, cost-effective solution to restore order without the exorbitant costs and scheduling headaches of a dealership visit.
This isn’t just a replacement part; it’s a comprehensive service. We provide a fully functional BCM, part number 13593775, that is professionally programmed with your vehicle’s exact data. The process is simple: after your purchase, you’ll ship your original BCM to our facility. Our expert technicians will then perform a data transfer, essentially ‘cloning’ all the critical information—like VIN, security keys, and specific options—to the replacement unit. We then ship the plug-and-play module back to you, ready for installation.
A Technician’s Notebook
I remember a 2015 Chevy Malibu that came into the shop with a laundry list of complaints from the owner. The radio would turn on and off by itself, the driver’s side power window had a mind of its own, and sometimes the car just wouldn’t crank. The diagnostic scanner was showing a cascade of U-codes, indicating a network communication failure. After checking the main CAN bus network, all signs pointed to an internal failure in the BCM. Instead of a costly new module and hours of programming, we used this exact cloning service. The customer sent us their module, we sent back the programmed replacement, and the installation took less than an hour. All the ghost-like electrical problems vanished instantly. It’s a solid fix that saves time and money.
Common Signs of a Failing GM Body Control Module
If your vehicle is experiencing any of the following, a failing BCM is a likely culprit. A faulty 2014-2016 LaCrosse BCM can disrupt your entire vehicle’s network.
- ✔ Intermittent or non-functional power windows, locks, or interior lights.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Security system issues or a persistent anti-theft light.
- ✔ Inaccurate or erratic gauge cluster behavior.
- ✔ No-start or no-crank conditions, even with a good battery.
- ✔ Communication error codes, particularly U-codes like U0100, U0140, or U0155.
- ✔ Malfunctioning remote keyless entry (RKE) system.
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is a direct replacement process. While locations vary slightly by model (see fitment list), the general steps are consistent.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most LaCrosse, Regal, and Malibu models, the BCM is found behind the driver’s side (LH) kick panel or dash area. For others like the Volt or ELR, it may be in the engine compartment or cowl area.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module.
- Disconnect and Remove: 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, programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Battery: Re-attach the negative battery terminal. The vehicle is now ready to start.
Important Post-Installation Notes
In some cases, additional synchronization procedures may be required after installation:
- Airbag System Sync: If the airbag warning light is on, a ‘Setup SDM Primary Key in BCM’ procedure must be done with a professional scan tool to sync the modules.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor might be necessary to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual for your specific vehicle. These steps are a general guide.
Verified Fitment For These GM Models
This module is a direct replacement for part number 13593775 and is compatible with several other part numbers. Please verify your part number or match your vehicle from the list below.
- ✔ Buick LaCrosse: 2014, 2015, 2016
- ✔ Buick Regal: 2014, 2015, 2016, 2017
- ✔ Chevrolet Malibu: 2014, 2015, 2016 (Limited models)
- ✔ Chevrolet Volt: 2014, 2015
- ✔ Chevrolet Camaro: 2014, 2015
- ✔ Chevrolet Spark EV: 2014, 2015, 2016
- ✔ Cadillac SRX: 2014, 2015, 2016
- ✔ Cadillac ELR: 2014, 2015, 2016
This service for the 2014-2016 LaCrosse BCM provides a seamless repair for a wide range of popular vehicles.
Frequently Asked Questions
How does the mail-in programming service work?
After you place your order, we will contact you with simple instructions and a shipping address. You send us your original BCM. We transfer its data to the replacement unit and ship it back to you, typically within 1-2 business days of receiving your module.
Is this truly plug-and-play?
Yes, for over 95% of installations. Because we clone your original data, the car recognizes the new module as its own, eliminating the need for dealer programming. In rare cases, a minor relearn procedure like for the brake pedal sensor may be needed.
Do I need to send you my keys?
No. All the necessary immobilizer and key data is stored within your original BCM. We clone this information, so your existing keys will work perfectly with the new module.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM has failed, we can still extract the necessary data for the cloning process. If your module is severely damaged (e.g., by fire or water), please contact us before ordering to discuss options.
Is there a core charge for this part?
No, there is no core charge. You are not required to return your original module to us after the service is complete, though we need it initially for the data transfer.