Restore Full Electrical Function to Your Vehicle
Are you dealing with perplexing electrical issues in your Buick Lucerne or another compatible GM vehicle? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are more than just annoyances—they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command for your car’s body electronics, and when it falters, it can make your vehicle feel unreliable and frustrating to drive. This replacement 2006-2011 Lucerne BCM is the definitive solution to get your car back to normal, without the exorbitant costs and scheduling hassles of a dealership visit.
Case Study: A Tricky Diagnosis
A customer brought in a 2009 Buick Lucerne with a laundry list of bizarre symptoms: the radio would turn off randomly, the driver’s side power window wouldn’t work, and the “Service Theft System” message kept appearing on the dash. A quick scan showed multiple communication loss codes (U-codes) pointing to the BCM. After popping off the passenger side dash end cap, I found the BCM. In my 20+ years, I’ve seen hundreds of these failures. Often, it’s not a catastrophic failure but a breakdown of internal circuits or solder joints from years of heat cycles and vibration. By providing a replacement with the original data cloned over, we restored all functions instantly. The customer was back on the road the same day, avoiding a multi-day wait and a hefty programming fee at the dealer.
Is Your Vehicle Showing These Symptoms?
- ✔ Power windows, locks, or mirrors work intermittently or not at all.
- ✔ Interior dome lights or exterior lights flicker, stay on, or won’t turn on.
- ✔ The anti-theft or security system light is illuminated, potentially causing a no-start condition.
- ✔ The horn honks unexpectedly or doesn’t work.
- ✔ Wipers operate erratically or get stuck.
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0140, U0155, or other U-series codes, are present.
How Our Cloning Service Works for You
Forget about complex programming tools or additional dealer fees. Our unique cloning service makes this repair straightforward. After your purchase, you simply send us your original BCM. We then extract the vehicle-specific data—including your VIN, security information, and optional feature settings—and transfer it directly onto this replacement unit. The module you receive will be a true plug-and-play solution, pre-configured to match your car’s exact specifications. We then ship both your original module and the ready-to-install replacement back to you.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- ✔ Locate Your BCM: On the 2006-2011 Buick Lucerne, the BCM is typically located behind the end-cap panel on the right (passenger) side of the dashboard. For other models, its location may vary (e.g., under the steering column or in the center dash).
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a click as they lock 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, wipers, etc.—to confirm the repair was successful.
Post-Installation Checks
In most cases, this is a plug-and-play repair. However, depending on your specific vehicle, a couple of quick relearn procedures may be needed:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: Some models may require this procedure to ensure brake lights and traction control function correctly.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15921352 and is interchangeable with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084. It fits a wide range of GM vehicles, including:
ACADIA 07-12 (LH dash)
AVALANCHE 1500 10 (under steering column)
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash)
CTS 08-13 (LH or RH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE, ESV, EXT 10 (under steering column)
EXPRESS / SAVANA VANS 08-12 (center dash)
G8 08-09 (center dash)
HUMMER H2 08-09 (LH firewall)
IMPALA 06-13 (LH dash)
MONTE CARLO 06-07 (LH steering column)
OUTLOOK 07-10 (center dash)
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column)
TAHOE 10 (under steering column)
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON / YUKON XL 1500 10 (under steering column)
Frequently Asked Questions
Frequently Asked Questions
What exactly is a “cloning service”?
Cloning is the process where we transfer the complete software and vehicle-specific configuration data (like VIN and security settings) from your old BCM to the replacement one. This makes the new module an identical twin to your original, ensuring it works seamlessly with your car without any additional programming.
Do I need to send you my VIN number?
No, you do not need to provide your VIN separately. All the necessary information, including the VIN, is extracted directly from your original BCM during the cloning process. You just need to ship us your original module after purchase.
What happens to my old BCM? Do you keep it?
We do not keep your original module. It is always returned to you along with your newly programmed replacement unit. There is no core charge or requirement to send it back.
Is this something I can install myself?
Yes, for many DIY enthusiasts, this is a manageable job. The BCM is typically accessible behind a dash panel and involves unplugging connectors and removing a few bolts. Our cloning service eliminates the most difficult part—the programming—making the physical swap the only task.
What if my airbag light comes on after installation?
This can occasionally happen. It means the airbag system (SDM) needs to be electronically re-introduced to the BCM. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which is a quick task for any qualified repair shop.