Restore Your Vehicle’s Electrical System with a Pre-Programmed BCM
Are you chasing electrical gremlins in your 2011-2012 Buick LaCrosse? From flickering lights and unresponsive power windows to a car that won’t start, a failing Body Control Module (BCM) can turn your vehicle into a source of constant frustration. The BCM is the central command center for your car’s body electronics, and when it fails, it can cause a cascade of confusing and seemingly unrelated issues. I’ve seen it countless times in my 20+ years on the shop floor: a customer comes in with a list of bizarre problems that no one can solve, and a faulty BCM is the hidden culprit.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional cloning service for this 2011-2012 LaCrosse BCM, part number 13583450. You simply ship your original, faulty BCM to us. Our expert technicians will then extract all the critical vehicle-specific data—including your VIN, mileage, and key information—and flash it directly onto this replacement unit. We then ship the programmed module back to you, ready for installation. This process completely bypasses the need for expensive and time-consuming programming at a dealership.
From the Diagnostic Bay: The Case of the Confused LaCrosse
A customer brought in a 2012 LaCrosse with a wild set of symptoms. The radio would turn on by itself, the driver’s side window wouldn’t work, and the anti-theft light was flashing intermittently, sometimes preventing the car from starting. They had already replaced the battery and checked fuses to no avail. After connecting my scan tool, I found a slew of ‘U’ codes (communication errors) pointing to a network breakdown. The common link was the BCM. Instead of a costly new module and dealer programming, we performed a cloning service just like this one. Once the cloned BCM was installed, every single electrical issue vanished. The car was back to normal, and the customer saved hundreds of dollars.
Is Your LaCrosse Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is your solution:
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system acting up, causing no-start conditions (flashing security light).
- ✔ The horn honking randomly or the alarm going off without reason.
- ✔ Multiple communication Diagnostic Trouble Codes (DTCs) like U0140, U0155, or U0100 stored in other modules.
- ✔ Inconsistent instrument cluster gauge operation.
Your Straightforward BCM Installation Guide
With our cloning service, the hardest part—the programming—is already done. Installation is a direct swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On the 2011-2012 LaCrosse, the BCM is typically found in the driver’s side kick panel area, to the left of the pedals.
- Remove the Old Module: Carefully disconnect all electrical connectors. They have locking tabs that must be depressed to be removed. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in place and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reconnect the negative battery terminal.
- Post-Install Checks: Start the vehicle and test all body functions (lights, locks, windows, radio, etc.). Note that some vehicles may require the additional procedures listed below.
Important Post-Installation Information
While our programming handles the core functions, some vehicle systems may need to be re-synced after installation:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs 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 operation and to prevent issues with the traction control system.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a certified technician if you are unsure about any step.
Verified Vehicle Compatibility List
This BCM, part number 13583450, is a direct replacement for a wide range of GM vehicles and interchanges with the following part numbers: 13579004, 13580198, 13582396, 13586856, 13582688, 13586278, 13501737, 13501739, 13577924, 13580773, and 13583451. Please verify your part number or match your vehicle from the list below:
- 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
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will provide you with shipping instructions. You send us your original BCM. We then transfer its unique data to the replacement module and ship the programmed unit back to you, typically within 1-2 business days of receiving your original.
Will my mileage and VIN be correct?
Yes. Our cloning process transfers your exact Vehicle Identification Number (VIN) and mileage from your old module to the new one, ensuring seamless integration and accurate records.
Do I need to send my keys?
No. Because we are cloning your original module’s data, the replacement BCM will recognize your existing keys. You will not need to have keys reprogrammed.
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. If your module has severe damage (fire, water, etc.), please contact us before ordering to discuss options.
Is there a core charge?
No. There is no core charge for this service. You are not required to return your original module to us after you receive the programmed replacement, though we need it initially for the cloning process.