Restore Your Buick’s Electrical Stability
Are you dealing with baffling electrical issues in your 2006-2011 Buick Lucerne? Flickering lights, unresponsive power windows, or random warning messages on your dash are classic signs of a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s comfort and security features. When it malfunctions, it can feel like your car has a mind of its own. In my 20+ years of diagnostics, I’ve seen countless drivers frustrated by these intermittent, hard-to-trace problems. The issue often isn’t a faulty window motor or light bulb, but the central computer that controls them.
This is your direct, reliable solution. We provide a genuine GM Body Control Module, part number 25910474, that arrives at your door fully programmed to your vehicle’s specific VIN. This crucial step ensures seamless integration with your Lucerne’s existing systems, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest, loading the latest GM software updates for optimal performance and reliability.
A Technician’s Notebook
I remember a 2008 Lucerne that came into the shop with a list of complaints that seemed unrelated. The radio would turn off randomly, the driver’s side power lock was inoperative, and the interior dome light would stay on. The owner had already replaced the lock actuator with no success. After checking the wiring diagrams, all signs pointed to the BCM. These modules, often tucked away in the dash, endure years of temperature swings and vibrations, which can lead to microscopic cracks in the circuit board. After installing a VIN-programmed BCM like this one, all the strange electrical gremlins vanished. It’s a fix that restores not just function, but the owner’s confidence in their vehicle.
Is Your Lucerne Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security system acting up or preventing the car from starting.
- ✔ False warnings on the instrument cluster (e.g., “Service Theft System”).
- ✔ Communication loss codes with other modules (U-codes) when scanned.
- ✔ Unresponsive key fob commands.
A Straightforward Guide to BCM Replacement
For the 2006-2011 Buick Lucerne, the BCM is located behind the right side of the dashboard. While professional installation is always an option, a skilled DIYer can perform this replacement. Always consult a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your car’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: You will likely need to remove the glove box and potentially a lower dash trim panel on the passenger side to gain access to the BCM.
- 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 old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring each one clicks into place.
- Post-Installation Steps: Reconnect the vehicle’s battery. Start the car and test all functions—lights, locks, windows, radio, etc. Note that some vehicles may require additional procedures as outlined below.
Important Post-Installation Information
Your new BCM is programmed to your VIN, which handles the majority of the setup. However, in some cases, additional sync procedures may be needed:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is required to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration might be necessary. This also typically requires a capable diagnostic tool.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a qualified technician for procedures specific to your vehicle.
Guaranteed Fitment for Your Vehicle
This module is a direct replacement for part number 25910474 and is interchangeable with a wide range of other GM part numbers. It fits the following vehicles, among others:
ACADIA 07-12 Body Control (BCM); (LH dash)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash)
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE & ESV/EXT 10 Body Control (BCM); (under steering column)
EXPRESS/SAVANA VANS 08-12 Body Control (BCM); (center dash)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column)
TAHOE 10 Body Control (BCM); (under steering column)
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON & YUKON XL 10 Body Control (BCM); (under steering column)
Note: This is not an exhaustive list. Please verify your part number. This module replaces: 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.
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the Body Control Module with the exact software and vehicle-specific options that your Lucerne came with from the factory. This ensures all features work correctly right out of the box.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module, which saves you the time and expense of shipping it back.
Is this a simple plug-and-play installation?
Because we pre-program the module, it is as close to plug-and-play as possible. You will not need to have it programmed at a dealership. However, as noted above, some vehicles may require minor relearn procedures for systems like the airbags or brakes.
Will this fix my car’s starting problem?
A faulty BCM can definitely cause a no-start condition, often related to the anti-theft system. If your BCM is the root cause of the issue, this replacement part will resolve it. Proper diagnosis is key.
What tools do I need for the installation?
For most installations, you’ll only need basic hand tools like a socket set and screwdrivers to remove the dash panels and unbolt the old module. No special programming tools are required on your end.