Restore Your Buick’s Electrical Stability
Are you dealing with baffling electrical issues in your 2006-2011 Buick Lucerne? Maybe the interior lights have a mind of their own, the power windows work intermittently, or the security light is flashing, preventing the car from starting. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, and when it falters, it can cause a cascade of frustrating and unpredictable problems. This replacement 2006-2011 Lucerne Body Control Module is the reliable, straightforward solution to get your vehicle back to normal.
We take the guesswork and extra expense out of the repair. Simply provide us with your vehicle’s VIN after purchase, and our technicians will program the module with the latest GM software specifically for your car. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming services. It’s the most efficient way to solve complex electrical problems and restore the comfort and convenience features you rely on every day.
A Technician’s Notebook: The Intermittent Gremlin
I had a 2009 Lucerne in the bay that was driving the owner crazy. The radio would randomly shut off, the driver’s side window wouldn’t go down, and occasionally the car wouldn’t start, showing a security fault. The battery was good, and the alternator was charging. After checking grounds and wiring harnesses, I hooked up my professional scan tool. There were no hard codes, but I saw multiple communication loss codes (U-codes) stored in history between the BCM and other modules. This intermittent communication loss is a dead giveaway. We installed a VIN-programmed BCM, and every single issue was resolved instantly. It’s a reminder that with modern cars, the problem isn’t always mechanical—it’s often the computer in charge.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a faulty BCM is the likely culprit. Replacing your 2006-2011 Lucerne Body Control Module can be the definitive fix.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light flashing, leading to a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ False warnings on the dashboard or instrument cluster.
- ✔ Stored diagnostic trouble codes (DTCs) like U0140, U0155, or other communication faults.
- ✔ Rapid battery drain while the vehicle is parked.
Your Straightforward Path to Installation
For the confident DIYer, replacing the BCM in your Lucerne is a manageable job. The module is typically located behind the right side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning any electrical work.
- Access the Module: You will need to remove the glove box and possibly some lower dash trim panels on the passenger side to gain access to the BCM.
- Disconnect and Remove: Carefully disconnect all electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in place and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reassemble your dash panels and reconnect the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—lights, windows, locks, etc. Note the post-installation procedures below, as they may be required.
Important Post-Installation Steps
While this module is programmed to your VIN, some vehicle systems may require a relearn procedure to fully sync with the new BCM. This is a normal part of the process.
- 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 necessary to ensure correct brake light operation and to prevent issues with the traction control system.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Verified Vehicle Compatibility List
This BCM is a direct replacement for part number 15276271 and is compatible with a wide range of GM vehicles. Please verify your part number or consult the list below. This part fits models including:
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
This module also replaces the following part numbers: 10382479, 15093910, 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.
Frequently Asked Questions
Do I need to program this BCM?
No. We program the module to your vehicle’s VIN before shipping it to you. It arrives ready to be installed, though some simple post-install relearn procedures may be necessary for certain systems like the airbag or brake sensor.
What exactly does the Body Control Module do?
The BCM is a computer that manages the non-engine related electronic systems in your vehicle. This includes power windows, door locks, the security system, interior and exterior lighting, wipers, and the horn, among other functions.
Where is the BCM located on my 2008 Buick Lucerne?
On the 2006-2011 Buick Lucerne, the Body Control Module is typically found behind the dashboard on the passenger’s side. You will likely need to remove the glove box to access it.
Will this fix my power window and door lock problems?
If the cause of your window and lock issues is a faulty BCM, then yes, this part is the correct solution. The BCM directly controls those functions, and its failure is a very common reason for them to stop working correctly.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us. You can keep it or dispose of it as you see fit.