Restore Your Buick’s Electrical System with a Plug-and-Play BCM
Are you dealing with baffling electrical issues in your 2006-2011 Buick Lucerne? Intermittent power windows, flickering lights, a security system that acts on its own, or a car that refuses to start can all point to one component: a failing Body Control Module (BCM). As the nerve center for your vehicle’s comfort and convenience features, a faulty BCM can make your daily drive a frustrating experience. This isn’t just an inconvenience; it can affect vehicle security and safety systems. We offer a reliable, straightforward solution with our professionally prepared 2006-2011 Lucerne BCM.
A Technician’s Notebook: The Ghost in the Lucerne
I remember a 2009 Lucerne that came into the shop with a list of symptoms that sounded like the car was possessed. The radio would turn on by itself, the driver’s side power window wouldn’t work but the others would, and the anti-theft light would flash randomly, preventing it from starting. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a slew of ‘U’ codes, indicating a loss of communication with the BCM. A quick inspection under the dash on the right side revealed the culprit: evidence of water intrusion from a minor windshield leak had dripped directly onto the BCM, causing corrosion on the circuit board. This is a common failure point I’ve seen in dozens of these GM platforms. Replacing the BCM and sealing the leak was the definitive fix that got the customer back on the road, worry-free.
How Our Cloning Service Saves You Time and Money
The biggest headache with replacing a BCM is the required programming. Traditionally, you’d have to buy a new module and then have your car towed to a dealership for expensive, specialized programming. Our unique Cloning Service eliminates that step entirely. Here’s how it works: you send us your original BCM, and we professionally transfer all the critical data—including your vehicle’s VIN, key information, and specific options—to this replacement unit. When you receive it back along with your original, it’s ready for immediate installation. No extra tools, no software subscriptions, and absolutely no trip to the dealer.
Is Your Buick Showing These Symptoms?
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system engaging randomly, causing a no-start condition.
- ✔ The radio or climate control system behaving strangely.
- ✔ Warning lights on the dashboard, such as the airbag or security light.
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, U0155, or other communication errors stored in the system.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work. Wait a few minutes for the system capacitors to discharge.
- ✔ Locate the BCM: In 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 must be depressed to be released. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New BCM: Mount the replacement module in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Test All Functions: Start the vehicle and test all body-related functions: lights, windows, locks, wipers, radio, etc., to confirm the repair.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some GM vehicles require a ‘handshake’ between modules after installation. 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 recalibration may be needed to ensure correct brake light operation and to prevent issues with the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15880684 and is interchangeable with a wide range of other part numbers. It fits many GM vehicles. Please verify your part number and check the detailed fitment list below.
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
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 6.0L
EXPRESS 3500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
IMPALA 06-12 Body Control (BCM); (LH dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 4.8L
ACADIA 07-12 Body Control (BCM); (LH dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25892622
TRAVERSE 09-12 Body Control (BCM); (LH dash)
YUKON 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 2500 VAN 11-12 Body Control (BCM); (center dash)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435 or 22860591
DTS 06-11 Body Control (BCM); (RH center dash)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25892622 or 20815898
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 11-12 Body Control (BCM)
STS 10 Body Control (BCM); center dash
TORRENT 07-09 Body Control (BCM); (center dash)
CTS 08-13 Body Control (BCM); LH dash
G8 08-09 Body Control (BCM); (center dash)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
ESCALADE 10 Body Control (BCM); (under steering column), ID 25892622 or 20815898
LUCERNE 06-11 Body Control (BCM); (right side dash)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25892622 or 20815898
SAVANA 3500 VAN 08-12 Body Control (BCM)
SAVANA 2500 VAN 08-09 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
VUE 08-10 Body Control (BCM); (center dash)
CAPRICE 11-13 Body Control (BCM)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
What does the ‘Cloning Service’ involve?
What does the ‘Cloning Service’ involve?
Our cloning service is a process where we transfer the essential programming and vehicle-specific data from your original BCM to the replacement unit. This makes the new module plug-and-play, saving you a trip to the dealership.
Do I need any special tools to install this?
No special programming tools are required. Basic hand tools for accessing and removing the module (like a socket set and screwdrivers) are all that’s needed for the physical installation.
Will I get my original BCM back?
Yes, absolutely. We always return your original module with the programmed replacement unit. We do not keep your old part.
What if my airbag light comes on after installation?
This can happen occasionally. It means the BCM needs to be electronically synced with the airbag module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done by a repair shop with a professional-grade scan tool.
Is this a guaranteed fix for my car’s electrical problems?
A failing BCM is a very common cause for the symptoms listed. While this part is a direct solution for a faulty module, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause of your issues before purchasing.