Is your Buick Lucerne or other GM vehicle acting possessed? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or a battery that mysteriously drains overnight are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can create a cascade of frustrating and unpredictable electrical problems. Don’t let a faulty module keep you off the road. This direct-replacement Body Control Module is the reliable solution to restore full functionality to your vehicle’s features.
This isn’t just a part in a box; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means you can bypass the costly trip to the dealership for programming. Simply provide us with your VIN upon purchase, and we’ll load the latest GM software updates, ensuring perfect compatibility and performance right out of the box. It’s the most efficient way to get your car back to normal.
From the Diagnostic Bay
We had a 2009 Buick Lucerne come into the shop with a laundry list of bizarre electrical gremlins. The owner said the radio would sometimes turn off, the interior lights would flicker while driving, and the remote key fob worked intermittently. The most concerning issue was a dead battery every few days. After testing the battery and alternator, which were both fine, we traced the parasitic draw back to the BCM. It wasn’t properly shutting down accessory circuits when the car was off. We installed a VIN-programmed module just like this one, and it immediately solved all the issues. The parasitic draw was gone, and all body functions returned to normal. It’s a perfect example of how one component can cause so many headaches.
Diagnosing a Failing 2006-2011 Lucerne Body Control Module
A failing BCM can manifest in numerous ways, often mimicking other problems. If you’re experiencing several of the following symptoms, your BCM is the most likely culprit:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning dashboard gauges or warning lights that illuminate for no reason.
- ✔ Problems with the vehicle’s security system or remote keyless entry.
- ✔ Climate control system not responding correctly.
- ✔ Unexplained battery drain that leaves you stranded.
- ✔ Horn honking randomly or not working at all.
A True Plug-and-Play Solution
Replacing a modern vehicle computer can be intimidating, but we make it simple. Because this 2006-2011 Lucerne Body Control Module is flashed with your vehicle’s unique data, the installation process is straightforward. While the physical swap is manageable for a skilled DIYer, some vehicles may require a couple of simple post-installation relearn procedures. For instance, if your airbag light comes on, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a professional scan tool. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. These are standard procedures for ensuring all vehicle systems communicate correctly after the new module is installed.
This module is a direct replacement for a wide range of GM vehicles and part numbers, including: 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, and 95151084. Please verify your part number to ensure compatibility.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s VIN before we ship it. This eliminates the need for expensive dealership programming, making it a true plug-and-play solution.
What happens if I don’t provide my VIN?
Providing your VIN is mandatory for this part. We cannot program or ship the module without it, as the programming is specific to your vehicle’s factory options and security systems. Your order will be delayed until a valid VIN is received.
Where is the BCM located on a 2006-2011 Buick Lucerne?
On the Buick Lucerne, the Body Control Module is typically located behind the right side of the dashboard, accessible after removing the glove box assembly. Please consult a service manual for your specific vehicle for precise location and removal instructions.
Will this fix the ‘Service Theft System’ message on my dash?
A faulty BCM is a very common cause of security system issues, including the ‘Service Theft System’ message. While not a guarantee for every case, replacing a faulty BCM with our pre-programmed unit often resolves these problems.
What tools are needed for the post-installation procedures?
Procedures like the ‘Setup SDM Primary Key in BCM’ require a high-level bidirectional scan tool, such as a GM Tech 2 or equivalent professional diagnostic device. Many independent repair shops have this equipment if you are not able to perform the procedure yourself.
Is there a core charge for my old BCM?
No, there is no core charge for this module. You can keep your original part.