Restore Full Control and End Electrical Frustration
Are you dealing with bizarre electrical issues in your 2006-2011 Buick Lucerne? Flickering lights, malfunctioning power windows or locks, erratic gauges, or even a car that won’t start can often be traced back to a single component: a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can turn your comfortable ride into a source of constant annoyance. I’ve seen it hundreds of times in my shop—a perfectly good car plagued by what seems like a dozen different problems, all stemming from this one module.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional Cloning Service for this BCM. This means we transfer the critical data from your original module directly to this replacement unit. By cloning the information, including security keys and vehicle-specific options, we create a true plug-and-play module. You can avoid the costly trip to the dealership for programming and the complex relearn procedures that often come with a new BCM. Just send us your original module, and we’ll send it back to you along with your ready-to-install replacement.
Is Your Lucerne Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty module is the likely culprit. In my diagnostic experience, multiple symptoms appearing at once strongly points to the BCM.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft system acting up, causing a no-start condition.
- ✔ The radio or instrument cluster randomly shutting off or behaving erratically.
- ✔ False warning lights on the dashboard, such as the airbag or brake light.
- ✔ Communication error codes, often in the U-series (e.g., U0140, U0155), indicating a loss of communication with other modules.
Case Study: A Tricky Diagnosis
A customer brought in a 2009 Lucerne with a laundry list of complaints: the radio would cut out, the driver’s side window worked only when it wanted to, and the remote key fob was useless. They had already replaced the battery and checked fuses with no luck. A quick scan showed multiple communication loss codes. Instead of chasing each individual problem, my experience pointed me to the BCM, located on the right side of the dash. We found evidence of water intrusion from a leaky windshield cowl seal that had shorted internal circuits. By replacing the BCM with a cloned unit, we solved all the issues in one shot, saving the customer hundreds in diagnostic time and unnecessary parts.
A Straightforward Guide to Installation
Replacing the 2006-2011 Lucerne Body Control Module is a manageable job for a confident DIYer or a quick task for any professional technician. Our cloning service makes the electronic side of things simple.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2006-2011 Buick Lucerne, the Body Control Module is typically located behind the right side of the dashboard, accessible by removing the glove box or a lower dash panel.
- Disconnect and Remove: Carefully 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 Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair was successful.
Important Post-Installation Information
While our cloning service handles the majority of the setup, some vehicle systems may require a quick sync-up after installation. Please be aware of the following potential procedures:
- 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 relearn may be required to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles. We guarantee compatibility if your original part number is on this list. We program the module specifically for your vehicle using the VIN you provide.
Primary Fitment: Buick Lucerne (2006, 2007, 2008, 2009, 2010, 2011)
Replaces Part Numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
This part also fits many other GM models including the Acadia, Enclave, Traverse, Impala, Equinox, Tahoe, Yukon, Escalade, Express/Savana vans, and more. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What is the cloning service?
Cloning is a process where we transfer all the essential data—including VIN, mileage, and key information—from your original BCM to the replacement unit. This makes the new module a plug-and-play part, eliminating the need for dealership programming.
Do I need to get this module programmed?
No. Our cloning service means the module arrives at your door ready for installation. There is no need for any additional programming or flashing.
What do you do with my old BCM?
Our core policy is simple: we always return your original module to you along with the newly programmed replacement. We do not keep it.
Where is the BCM located on my 2008 Buick Lucerne?
The BCM is located on the right side of the dashboard, typically accessible after removing the glove box assembly.
Why is my airbag light on after installing the new BCM?
The airbag system (SDM) has security protocols that link it to the BCM. If the light is on, it simply means the two modules need to be re-synced using a professional scan tool procedure called ‘Setup SDM Primary Key in BCM’. This is a common and straightforward step for a repair shop.