Is Your Buick Lucerne Experiencing Strange Electrical Issues?
If you’re dealing with flickering lights, malfunctioning power windows or locks, or a security system that has a mind of its own, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it can affect the safety and reliability of your vehicle. Restore proper function and peace of mind with our direct-fit, VIN-programmed BCM.
From the Diagnostic Bay
We had a 2008 Lucerne come into the shop with a classic “haunted car” complaint. The dome lights would stay on, the radio would randomly shut off, and the remote key fob worked only intermittently. The owner had already replaced the battery and checked fuses with no luck. A scan tool showed multiple communication loss codes with various modules. Instead of chasing wires for hours, we went straight to the BCM. After swapping in a programmed unit, every single electrical gremlin vanished. These modules are common failure points, and a direct replacement is often the fastest and most effective fix.
Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ Malfunctioning instrument cluster gauges or warning lights (like the airbag light).
- ✔ Security system faults or anti-theft light staying illuminated, preventing the car from starting.
- ✔ Remote keyless entry (key fob) not working correctly.
- ✔ Communication errors when trying to scan the vehicle’s computer systems.
The Simple, Reliable Solution for Your 2006-2011 Lucerne BCM
Don’t let a faulty module keep you off the road or force you into an expensive dealership visit. We make the repair process straightforward. This BCM is not just a replacement part; it’s a complete solution. We use your vehicle’s Vehicle Identification Number (VIN) to program the module with the latest GM software updates before it ships. This ensures it communicates perfectly with your car’s existing systems right out of the box, simplifying the installation process significantly.
Important Installation Notes
While our programming handles the most critical setup, some vehicles may require minor post-installation procedures to sync all systems. These can typically be performed with a bi-directional scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a procedure called “Setup SDM Primary Key in BCM” is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper operation of brake lights and the traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
Is this BCM plug-and-play?
Because we program the module to your specific VIN before shipping, it is as close to plug-and-play as possible. It eliminates the need for expensive dealership programming. However, as noted, some vehicles may require additional relearn procedures for systems like the airbags or brake sensor.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot program and ship your BCM without it. You can typically find your VIN on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your insurance and registration documents.
What if my original part number isn’t 15819552?
This module replaces a wide range of original GM part numbers. Please check the extensive list of compatible part numbers in the description to ensure this part is the correct replacement for your vehicle.
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 problem?
This BCM will resolve issues directly caused by a faulty Body Control Module. While the symptoms listed are common indicators, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause of your problems before ordering.