Restore Full Functionality to Your Buick Lucerne
Is your 2006-2011 Buick Lucerne experiencing bizarre electrical issues? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly activates can be incredibly frustrating. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your car’s comfort and convenience features. When it starts to fail, it can make your reliable Lucerne feel unpredictable. This isn’t a problem you have to live with, and you don’t need an expensive trip to the dealership to fix it.
We offer a dependable, direct-fit solution with this Body Control Module. The best part? We handle the complicated programming for you. Simply provide your vehicle’s VIN during checkout, and our team of experienced technicians will flash the module with the latest GM factory software specific to your car. This ensures that when the part arrives, it’s ready for installation, saving you hundreds in dealership programming fees and diagnostic time.
A Technician’s Notebook
Just last month, a 2009 Lucerne was brought into the shop with a list of strange symptoms. The owner complained that the radio would sometimes not turn on, the interior dome lights wouldn’t work, and occasionally, the car wouldn’t start, with no codes from the engine computer. After checking the basics—battery, fuses, and grounds—our diagnostic scan tool pointed to a communication breakdown. We were seeing intermittent U0140 codes, indicating a loss of communication with the BCM. A faulty Body Control Module was intermittently dropping off the data network, causing chaos with every system it managed. Replacing it with a pre-programmed unit like this one solved every single issue instantly. It’s a common failure point I’ve seen on dozens of these GM platforms.
Is Your Buick Showing These Symptoms?
- ✔️ Power windows, locks, or mirrors operating erratically or not at all.
- ✔️ Interior or exterior lights flickering, staying on, or not turning on.
- ✔️ The anti-theft or security system light is on, or the car won’t start.
- ✔️ The radio or infotainment system is malfunctioning.
- ✔️ False warnings appearing on the driver information center.
- ✔️ Diagnostic Trouble Codes (DTCs) such as U0140, B1001, or other B-series and U-series codes are present.
Your Straightforward BCM Installation Guide
Installing your new 2006–2011 Lucerne Body Control Module is a manageable job for a confident DIYer. For the Lucerne, the BCM is typically located behind the right side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: You will likely need to remove the glove box or a lower dash panel on the passenger side to gain access to the BCM. Keep track of all screws and clips.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket and remove it.
- Install the New BCM: Mount the new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses.
- Reconnect the Battery: Re-attach the negative battery terminal.
- CRITICAL Final Steps: After installation, a few relearn procedures are required and must be performed with a compatible high-level diagnostic scan tool. This is not optional.
- Airbag System Check: Perform the ‘Setup SDM Primary Key in BCM’ procedure. This step is essential to ensure the airbag system is online and the warning light is off.
- Brake Sensor Calibration: Some vehicles require the Brake Pedal Position Sensor to be recalibrated after BCM replacement to ensure proper brake light function and stability control performance.
Verified Vehicle Compatibility
This BCM, part number 25847588, is a direct replacement for a wide range of General Motors vehicles. It is interchangeable with numerous part numbers, ensuring broad compatibility. Please verify your vehicle is on this list. The location of the BCM varies by model.
ACADIA 07-12 (LH dash)
AVALANCHE 1500 10 (under steering column, ID 25892622)
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 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)
SAVANA VANS 08-12 (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)
Note: This list is extensive but not exhaustive. Always match your original part number to the list provided to guarantee fitment.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. You just need to provide your vehicle’s 17-digit VIN when you order. However, you will need a scan tool for the post-installation relearn procedures mentioned in the installation guide.
Is this a difficult part to install?
For someone with basic mechanical skills, it’s a straightforward job. The main challenge is accessing the BCM, which is usually tucked behind the dashboard. No special tools are needed for the physical swap, but a scan tool is required for the final steps.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to access the exact factory software and configuration files for your specific car. This ensures the 2006–2011 Lucerne Body Control Module works perfectly with your vehicle’s options, like the type of transmission, security system, and lighting.
What happens if I don’t perform the airbag or brake relearn procedures?
Skipping these critical steps can leave you with a persistent airbag warning light on your dash and may compromise the functionality of your vehicle’s safety systems, including stability control. It is essential to complete the full installation process.
Will this fix my car not starting?
If the no-start issue is caused by the BCM’s control over the anti-theft system (like GM’s Pass-Key), then yes, this will very likely solve the problem. A faulty BCM is a common cause of intermittent no-start conditions on these vehicles.