Restore Your Vehicle’s Electrical System with a Plug-and-Play Solution
Are you dealing with baffling electrical issues in your 2011-2012 Buick LaCrosse? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can turn a reliable vehicle into a source of daily frustration. This isn’t just an inconvenience; it can affect vehicle security and safety systems. We offer a reliable, straightforward solution that gets you back on the road without the exorbitant costs and scheduling headaches of a dealership visit.
Our service provides a replacement BCM that is professionally programmed with the data from your vehicle’s original module. This cloning process ensures that all your car’s specific settings, including VIN, mileage, and optional features, are perfectly transferred. The result is a true plug-and-play module. Simply install it, and you’re ready to go—no additional programming or calibration required for most functions. This is the definitive fix for the issues caused by a failing 2011-2012 LaCrosse BCM.
From the Diagnostic Bay: The BCM That Played Hide-and-Seek
I remember a 2012 LaCrosse that came into my shop with a laundry list of complaints: the dome light wouldn’t turn off, the driver’s side window worked intermittently, and the remote key fob was dead. The owner had already replaced the window motor and a handful of fuses with no luck. The diagnostic scanner wasn’t showing any hard codes, just a few communication errors (U-codes) that would come and go. This is a classic BCM failure pattern. The internal logic board develops micro-fractures or component decay, causing unpredictable behavior that doesn’t always trigger a specific trouble code. After confirming power and ground to the BCM were solid, we knew it was the culprit. A cloned module restored full function in under an hour of shop time, saving the customer from further guesswork and unnecessary parts expenses.
Common Signs of a Failing Body Control Module
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, locks, or mirrors behaving unpredictably or not at all.
- ✔ The vehicle’s security system or anti-theft light staying on or activating randomly.
- ✔ Remote keyless entry (key fob) failing to lock or unlock the doors.
- ✔ Dashboard warning lights appearing for no reason, often accompanied by communication error codes like U0140, U0155, or U0100.
- ✔ Wipers or horn activating on their own or not working when needed.
Our Simple Mail-In Programming Process
Getting your vehicle fixed is easy. After you place your order, we will contact you with clear, step-by-step instructions for shipping your original BCM to our facility. Please ensure your contact information is correct at checkout. Once we receive your module, our technicians will expertly transfer its data to the replacement unit. We then ship the newly programmed module back to you, typically within 24-48 hours, and provide you with tracking information. This process eliminates the need for a trip to the dealer and ensures compatibility.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: In the 2011-2012 LaCrosse, the BCM is typically found behind the driver’s side kick panel, to the left of the pedals.
- ✔ Remove Trim: 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 pressed. 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 reconnect all the electrical harnesses. Ensure they click securely into place.
- ✔ Final Steps: Re-install the trim panels and reconnect the negative battery terminal. Start the vehicle to confirm that the issues are resolved.
Important Post-Installation Notes
While our goal is a 100% plug-and-play experience, some vehicle systems may require a quick sync-up after the BCM is replaced. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation. This is also performed with a scan tool.
Guaranteed Vehicle Compatibility
This BCM is a direct replacement for several part numbers and fits a wide range of GM vehicles. Please verify your part number or vehicle model from the list below to ensure proper fitment. This module is compatible with part numbers: 13579004, 13580198, 13582396, 13583450, 13586856, 13582688, 13586278, 13501737, 13501739, 13577924, 13580773, 13583451.
This part will fit these makes and models with these options:
- 2011-2012 Buick LaCrosse
- 2011-2013 Chevrolet Volt
- 2011-2012 Cadillac SRX
- 2011 GMC Terrain
- 2011 Chevrolet Equinox
- 2011 Chevrolet Camaro (Convertible)
- 2012 Chevrolet Cruze
- 2012 Chevrolet Orlando
- 2011 Buick Regal
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle. The location of the BCM may vary between models.
Frequently Asked Questions
How does the mail-in cloning service work?
After you purchase, we’ll email you instructions to mail your original BCM to us. We extract the unique data and program it into your new module, then ship it back to you ready for installation. This makes it a plug-and-play part for your specific vehicle.
Will I need a dealership to program this 2011-2012 LaCrosse BCM?
No. Our programming service means the module arrives ready to install. You will not need to pay for or schedule any additional programming from a dealer or mechanic.
What if my airbag light comes on after I install it?
This is a known possibility. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag module. A mechanic with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
How long does the entire process take?
Once we receive your original module, we typically program and ship the replacement within one business day. The total time depends on shipping transit times to and from our facility.
Is there a core charge or do I need to return my old part?
There is no core charge. We only need your original BCM to perform the data transfer service. You do not need to send it back after receiving your programmed replacement.