Is Your Buick Lucerne Plagued by Baffling Electrical Issues?
If your 2006-2011 Buick Lucerne is acting possessed—with flickering lights, malfunctioning power windows, a dead instrument cluster, or even a random no-start condition—the culprit is often a failing Body Control Module (BCM). The BCM is the central nervous system for your car’s comfort and convenience features. When it goes bad, it can create a cascade of frustrating and unpredictable problems that can be difficult to diagnose.
From the Shop Floor: “A customer’s 2008 Lucerne came in last week with the radio cutting out and the security light staying on, preventing it from starting intermittently. We scanned it and found multiple U-codes, indicating a loss of communication with the BCM. After verifying the module had good power and ground, we knew the BCM itself had an internal fault. This is a scenario I’ve seen hundreds of times on these GM platforms.”
The Direct Solution: A BCM Programmed for Your Vehicle
Forget the expensive dealership visit and the hassle of scheduling a programming appointment. This Body Control Module is the straightforward solution you need. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN before we ship it. This means it arrives ready for installation, loaded with the latest software updates from GM to ensure optimal performance and communication with your car’s other electronic systems.
Common Symptoms of a Failing 2006–2011 Lucerne Body Control Module:
- ✔ Erratic or non-functional power windows, mirrors, and door locks.
- ✔ Interior dome lights or exterior lamps staying on or not turning on at all.
- ✔ The anti-theft or security light flashing, causing a no-start condition.
- ✔ False warnings appearing on the instrument cluster or driver information center.
- ✔ Unresponsive key fob or remote start functions.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors (U-codes).
Simple Installation to Get You Back on the Road
Replacing the BCM on your Lucerne is a manageable job for a confident DIYer. It is located on the right side of the dash, typically accessible by removing the glove box assembly.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: Remove the glove box and any surrounding trim panels to gain clear access to the BCM.
- Disconnect and Remove: Carefully press the release tabs on each electrical connector and pull them straight out. Do not force them. Once disconnected, remove the bolts or screws holding the BCM in its bracket.
- Install the New BCM: Mount your new, pre-programmed module in place and securely plug in all the electrical connectors. You’ll hear a click as they lock into position.
- Power Up: Reconnect the negative battery terminal. Your vehicle is now ready for the final steps.
Critical Post-Installation Procedures
After your new BCM is installed, a couple of final steps are required to ensure all systems operate correctly. This is normal for this type of repair.
- Airbag System Reset: The airbag warning light will likely be on. You must perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible bi-directional scan tool. This re-establishes communication between the new BCM and the airbag system.
- Brake Pedal Position Sensor Relearn: Some vehicles may require the Brake Pedal Position Sensor to be recalibrated. This ensures the brake lights and stability control system function correctly. This is also performed with a quality scan tool.
Guaranteed Fitment and Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. If your original module has any of the following numbers, this unit is the correct, pre-programmed replacement for you:
Replaces 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
Please provide your vehicle’s 17-digit VIN at checkout so we can program the module specifically for your car.