Are you chasing electrical gremlins in your 2006-2011 Buick Lucerne? Intermittent power windows, flickering dash lights, a security system that has a mind of its own, or accessories that work one minute and not the next? Before you lose your sanity or spend a fortune at the dealership, the root cause is often a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, when the BCM falters, it creates a cascade of frustrating and unpredictable problems.
This is your direct, reliable solution. We offer a genuine GM Body Control Module, part number 25934762, that arrives at your door fully programmed to your vehicle’s specific VIN. This crucial step means you can bypass the expensive and time-consuming trip to the dealership for programming. We install the latest GM software updates, ensuring optimal performance and compatibility right out of the box. Restore your vehicle’s functionality and your peace of mind with a part that’s ready for installation.
A Technician’s Notebook
I remember a 2008 Lucerne that came into the shop with a laundry list of bizarre complaints. The owner said the radio would randomly change stations, the interior lights would pulse dimly at night, and the remote key fob worked only occasionally. There were no check engine lights, just a host of annoying issues. After checking the main power and grounds, we hooked up a high-level scan tool and monitored the BCM data stream. We saw erratic voltage readings and lost communication codes (U-codes) popping up intermittently. This is a classic case of internal BCM failure. Swapping in a VIN-programmed module like this one solved every single issue in under an hour. It’s a fix I’ve performed hundreds of times on these GM platforms.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the most likely culprit:
- ✔ Erratic or non-functional power windows, locks, and mirrors.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Problems with the vehicle’s security system or remote keyless entry.
- ✔ Unexplained battery drain that leaves you with a dead battery.
- ✔ Communication error codes stored, such as U0140, U0155, or various B-codes.
- ✔ Wipers or other accessories activating on their own.
Your Straightforward BCM Installation Guide
Installing your new 2006-2011 Lucerne Body Control Module is a manageable job for a confident DIYer. In the Lucerne, the BCM is typically located behind the right side of the dashboard. Always confirm the location for your specific vehicle.
- Safety First: Disconnect the negative terminal from your car’s battery and wait a few minutes for the system to fully discharge.
- 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.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reassemble and Reconnect: Reinstall any panels you removed and then reconnect the negative battery terminal.
- Post-Installation Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some vehicles may require additional relearn procedures as detailed below.
Important Post-Installation Notes
While our programming handles the heavy lifting, some vehicle systems may need to be re-synced after the new BCM is installed.
- Airbag System Sync: If your 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 proper function of the brake lights and traction control system.
Disclaimer: Procedures can vary. We always recommend consulting a factory service manual or a qualified technician for your specific vehicle.
Will This Fit My Vehicle?
This module is a direct replacement for a wide range of GM vehicles and part numbers. Simply provide your VIN at checkout, and we’ll ensure it’s programmed correctly for you. This part is compatible with the following 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
This part will fit these makes and models with these options
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 or 20921436
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 2500 VAN 11-12 Body Control (BCM)
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
STS 10 Body Control (BCM); center dash
TORRENT 07-09 Body Control (BCM); (center dash)
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898
CTS 08-13 Body Control (BCM); LH dash
G8 08-09 Body Control (BCM); (center dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
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 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 4.8L or 6.0L
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25892622
SRX 07-09 Body Control (BCM); LH dash
EXPRESS 3500 VAN 11-12 Body Control (BCM)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
SAVANA 3500 VAN 11-12 Body Control (BCM)
VUE 08-10 Body Control (BCM); (center dash)
CAPRICE 11-13 Body Control (BCM)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EXPRESS 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
Frequently Asked Questions
What happens after I place my order?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. We cannot program and ship the module without it. Once we have your VIN, our technicians will program the BCM with the latest GM software specific to your car.
Is this part difficult to install myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is typically accessing the module’s location behind the dashboard. Since our module comes pre-programmed, you avoid the most complex part of the job.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Will this fix my specific electrical problem?
The BCM controls a vast number of your car’s electronic accessories. If you are experiencing multiple, seemingly unrelated electrical issues like the ones we’ve listed, there is a very high probability that a failing BCM is the cause. This part is designed to be a complete fix for those symptoms.
What if my original part number is not on your list?
The part numbers listed are the most common interchanges. If your number is different, please contact us with your VIN and original part number. We can verify compatibility for you.