Is Your Buick LaCrosse Experiencing Strange Electrical Problems?
If your 2011-2012 Buick LaCrosse is plagued by flickering lights, malfunctioning power windows, a dead instrument cluster, or even a no-start condition, the culprit is often a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, managing everything from interior lighting and security systems to power locks and climate control. When it fails, it can create a cascade of frustrating and seemingly unrelated issues that can be difficult to diagnose.
From the Diagnostic Bay
We once had a 2012 LaCrosse come into the shop with a complaint of the radio turning on and off by itself and the turn signals working intermittently. The customer had already replaced the radio and the turn signal switch with no success. After connecting our diagnostic scanner, we saw multiple communication error codes pointing towards the BCM. Instead of just replacing it and sending the customer to the dealer for expensive programming, we performed a cloning service just like this one. By transferring the data from the old, failing module to a replacement unit, we preserved all the vehicle’s original settings. The new BCM was installed, and all the bizarre electrical gremlins vanished instantly. It saved the customer hundreds of dollars and days of vehicle downtime.
The Simple, Dealer-Free Solution: A Programmed 2011-2012 LaCrosse BCM
Don’t let a faulty BCM keep your car off the road or force you into an expensive trip to the dealership. We offer a straightforward and reliable solution with this Body Control Module, part number 13583450. This isn’t just a part in a box; it’s a comprehensive service designed to get you back on the road with minimal hassle. We perform a professional cloning service, transferring the vital configuration, security, and key-related data from your original BCM directly onto this replacement unit. The result is a true plug-and-play module that is ready for installation right out of the box, with no additional programming required.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from the instrument cluster gauges or warning lights.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ Malfunctioning radio, climate controls, or other interior accessories.
- ✔ The vehicle’s security system preventing the car from starting.
- ✔ Unexplained battery drain when the vehicle is turned off.
- ✔ Communication error codes (U-codes) stored in the system.
How Our BCM Cloning Service Works
Our process is designed for your convenience:
- Place Your Order: Complete your purchase through our secure checkout. Ensure your contact information is accurate.
- We Contact You: Our team will reach out to you with clear, step-by-step instructions and a shipping address for sending us your original BCM.
- Ship Your Original Module: Carefully package and ship your vehicle’s original BCM to our facility.
- We Clone the Data: Upon receipt, our technicians will expertly extract the data from your module and flash it onto the replacement BCM.
- Receive Your Ready-to-Install Part: We ship the newly programmed BCM back to you, typically within 1-2 business days. You’ll receive tracking information so you know exactly when it will arrive.
Installation and Post-Install Notes
Installation is as simple as removing the old module and plugging in the new one. However, in some GM vehicles, additional synchronization procedures may be necessary after installation:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool must be used to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control function, a brake pedal position sensor recalibration may be needed. This also requires a compatible diagnostic tool.
Please consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please verify that your original module’s part number is on this list:
Part Numbers: 13579004, 13580198, 13582396, 13583450, 13586856, 13582688, 13586278, 13501737, 13501739, 13577924, 13580773, 13583451
Fitment Includes: Buick LaCrosse (2011-12), Chevrolet Volt (2011-13), Cadillac SRX (2011-12), GMC Terrain (2011), Chevrolet Equinox (2011), Chevrolet Camaro (2011), Chevrolet Cruze (2012), Chevrolet Orlando (2012), Buick Regal (2011), and more. Please check the detailed fitment list to confirm compatibility with your specific vehicle and options.
Frequently Asked Questions
What does ‘cloning’ or ‘programming’ mean for a BCM?
Cloning is the process of reading the unique vehicle-specific data—like the VIN, key information, and optional feature settings—from your original BCM and writing it onto the replacement module. This makes the new module an exact digital copy of the old one, allowing it to work in your car without requiring a trip to the dealer for expensive programming.
Do I need to do any programming myself?
No. The service you are purchasing includes all necessary programming. The BCM you receive will be ready to install and function in your vehicle immediately. The only potential extra steps are the post-install relearn procedures mentioned, if required by your specific vehicle.
How long does the service take?
Once we receive your original BCM, our cloning process is typically completed and the replacement module is shipped back out within 1-2 business days. The total time depends on shipping transit times to and from our facility.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data from the memory chip on the circuit board. Please contact us before ordering if your module has severe water or fire damage.
Where is the BCM located on my 2011-2012 LaCrosse?
On the 2011-2012 Buick LaCrosse, the Body Control Module is typically located behind the driver’s side (LH) kick panel, near the floor by the driver’s left foot.