Is your Buick Lucerne experiencing strange and frustrating electrical problems?
The Body Control Module, or BCM, is the central command center for your vehicle’s body electronics. It manages everything from your power windows and door locks to your interior lights and security system. When the BCM starts to fail, it can cause a cascade of seemingly unrelated issues that can be difficult to diagnose. Don’t let a faulty module disrupt your driving experience. This VIN-programmed Body Control Module is the reliable, straightforward solution to restore your car’s full functionality.
From the Diagnostic Bay
We had a 2008 Buick Lucerne come into the shop with a list of bizarre symptoms. The radio would randomly shut off, the driver’s side power window wouldn’t work, and the anti-theft light would stay on, sometimes preventing the car from starting. The owner had already replaced the battery and checked fuses with no luck. A quick scan pointed to communication errors with the BCM. Instead of a costly and time-consuming diagnostic and programming session at the dealership, we installed one of our pre-programmed modules. The entire job took less than an hour, and every single electrical gremlin was gone. The customer was thrilled to have their car back to normal without the dealership hassle.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights (headlights, taillights) behaving erratically or not working at all.
- ✔ The vehicle’s security system malfunctioning, causing alarm issues or no-start conditions.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Radio or climate control systems turning on or off by themselves.
- ✔ Poor or non-functional key fob response.
The Direct-Fit Solution: A Programmed 2006-2011 Lucerne Body Control Module
This isn’t just a replacement part; it’s a complete solution. We take the guesswork and extra steps out of the repair process. When you order, simply provide us with your vehicle’s VIN. Our technicians will then program the module with the latest GM software specific to your vehicle’s configuration. This ensures that when the part arrives, it’s ready for installation without needing a trip to the dealer for expensive programming. This module is a direct replacement for a wide range of original part numbers, including 15872388, 10382479, 15921352, 20815898, 22860591, and many more, ensuring broad compatibility across numerous GM models as listed in the fitment guide.
Post-Installation Information
Installation is straightforward, but in some cases, minor follow-up procedures may be needed. There is no core charge, so you can keep your original module.
- 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: Some models may require a brake pedal position sensor relearn to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM acts as the main computer for your vehicle’s comfort and convenience features. It controls non-engine-related functions like power locks, windows, lights, wipers, security system, and more.
Is this part difficult to install?
For a 2006-2011 Lucerne, the BCM is typically located behind the right side of the dashboard. While physical installation is manageable for a DIYer with basic tools, be aware that post-installation procedures like an airbag system sync may require a professional-grade scan tool.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information, as programming is essential.
Do I need to return my old, broken BCM?
No. This product has no core charge. You can keep your original module without any extra fees.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of security system issues, including the ‘Service Theft System’ message and no-start conditions. This programmed module is designed to resolve those problems.
This part number is different from mine, but my car is on the list. Will it work?
Yes. This BCM, part number 15872388, is a superseded part that replaces many previous GM part numbers. As long as your vehicle make, model, and year are on the compatibility list, this module will work once programmed to your VIN.