Restore Your Buick’s Electrical System with a Plug-and-Play BCM
Is your 2006-2011 Buick Lucerne experiencing bizarre electrical issues? Flickering lights, malfunctioning power windows, a temperamental security system, or random warning lights on the dash are all classic signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, coordinating everything from your interior lights and power locks to the instrument cluster and climate control. When it fails, it can create a cascade of frustrating and unpredictable problems.
Don’t let electrical gremlins take over your driving experience. This is a direct-replacement Body Control Module, part number 25826124, that arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical programming step ensures that the module communicates flawlessly with your Lucerne’s existing systems, eliminating the need for an expensive trip to the dealership for software flashing. Simply provide your VIN after purchase, and we’ll handle the rest, shipping you a unit that’s ready for installation.
We had a 2008 Lucerne come in that was driving the owner crazy. The radio would randomly shut off, the dome lights would flicker while driving, and occasionally the car wouldn’t detect the key fob. The owner had already replaced the battery and checked the main fuses. After hooking up our diagnostic scanner, we saw a flurry of communication error codes all pointing back to one component: the BCM. Instead of a complex wiring issue, the central computer was simply failing. We installed a VIN-programmed BCM just like this one, and within an hour, all the phantom electrical issues were gone. It’s a perfect example of how one failing module can mimic a dozen different problems.
Symptoms of a Failing 2006-2011 Lucerne Body Control Module
A faulty BCM can manifest in numerous ways, often seeming unrelated. If you’re noticing several of the following issues, your BCM is the likely culprit:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic behavior from the interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Instrument cluster gauges behaving erratically or warning lights appearing for no reason.
- ✔ The anti-theft or security system malfunctioning, preventing the car from starting.
- ✔ Issues with the radio, climate control, or other interior accessories.
- ✔ Communication error codes (U-codes) stored in the vehicle’s diagnostic system.
- ✔ A parasitic battery drain that kills your battery overnight.
Installation and Post-Install Considerations
This BCM is located on the right side of the dash in the 2006-2011 Buick Lucerne. While installation is straightforward for those with mechanical experience, some post-installation procedures may be necessary depending on your vehicle’s specific configuration. Our VIN programming handles the majority of the setup, but be aware of the following potential steps:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be needed to ensure proper function of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Guaranteed Fitment and Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. We guarantee compatibility for your 2006-2011 Lucerne when you provide your VIN for programming. This module also replaces 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 fits a wide array of GM models including the Acadia, CTS, DTS, Enclave, Equinox, Escalade, Express, Impala, Monte Carlo, Savana, SRX, Tahoe, Traverse, Yukon, and many more. Our VIN-specific programming ensures it will function correctly for your vehicle.
Frequently Asked Questions
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Is this part difficult to install?
For the Buick Lucerne, the BCM is located on the right side of the dashboard. Accessing and replacing it is a manageable job for a DIYer with moderate experience. However, due to the potential need for post-installation relearn procedures, we always recommend consulting a service manual or a professional technician if you are unsure.
What happens if I don’t provide my VIN?
Providing your VIN is mandatory for this purchase. We cannot program or ship the module without it. The programming ensures the BCM works with your car’s specific options and security system, preventing further issues.
Will this BCM fix my check engine light?
A BCM typically controls body functions, not engine performance. While it can sometimes cause communication errors that trigger other warnings, it is not usually the cause of a check engine light related to emissions or engine performance. Please diagnose any engine-related codes (P-codes) separately.
What tools are needed for the post-installation procedures?
Procedures like the Airbag System Sync and Brake Pedal Position Relearn require a high-level, bi-directional diagnostic scan tool, such as a GM Tech 2 or equivalent professional-grade scanner. Basic OBD-II code readers cannot perform these functions.