Are you dealing with perplexing electrical issues in your Buick Lucerne or another GM vehicle? Flickering interior lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting 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 malfunctions, it can create a cascade of frustrating and seemingly unrelated problems. This isn’t just an inconvenience; it can affect your vehicle’s security and safety systems.
This is a direct-fit replacement Body Control Module, part number 95151084, for a wide range of GM vehicles. The best part? We handle the complicated part for you. Using our professional cloning service, we program this module with your vehicle’s specific VIN and the latest GM software updates before it ever leaves our facility. This means you get a component that’s ready for installation right out of the box, saving you from an expensive trip to the dealership for programming.
A Technician’s Notebook
I remember a 2008 Buick Lucerne that came into the shop with a complaint that was all over the map. The customer said the radio would turn off, the power locks would cycle while driving, and sometimes the ‘Service Theft System’ light would come on. A basic code scan didn’t show any engine faults, which can throw off less experienced techs. The key was to scan the BCM specifically. We found a U0140 (Lost Communication With Body Control Module) code stored, along with several other B-codes related to lighting and door lock circuits. Instead of spending hours chasing individual wires, we identified the BCM as the root cause. A faulty BCM can act like a noisy switchboard operator, sending scrambled signals throughout the car. Replacing it with a properly programmed unit solved every single one of the customer’s seemingly random complaints in one go.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft system light is illuminated, and the vehicle may not start.
- ✔ Instrument cluster gauges behaving erratically or not working at all.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0100.
- ✔ Features like remote keyless entry or windshield wipers stop working intermittently.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On the 2006-2011 Buick Lucerne, the BCM is typically located behind the right side of the dashboard (passenger side). For other models, its location can vary (e.g., under the steering column or in the center dash). Consult a service manual for your specific vehicle if unsure.
- ✔ Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. Use a plastic trim removal tool to avoid scratching your interior.
- ✔ Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and reconnect all electrical connectors. Ensure they click securely into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: windows, locks, lights, wipers, and radio to confirm proper operation.
Post-Installation Checks
After installing your new BCM, a couple of system relearns may be required. This is a normal part of the process. Our cloning service minimizes these steps, but depending on your vehicle’s specific configuration, you might encounter the following:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed 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 recalibration to ensure brake lights and traction control function correctly.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part number 95151084 and a compatible service replacement for numerous other part numbers. Please verify your vehicle is on the list below. After purchase, you must provide your VIN so we can ensure perfect programming.
ACADIA 07-12, AVALANCHE 1500 10, CAPRICE 11-13, CAPTIVA SPORT 12, CTS 08-13, DTS 06-11, ENCLAVE 08-12, EQUINOX 07-09, ESCALADE 10, ESCALADE ESV 10, ESCALADE EXT 10, EXPRESS VANS (1500/2500/3500) 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS (1500/2500/3500) 08-12, SRX 07-09, STS 10, SUBURBAN 1500 10, TAHOE 10, TORRENT 07-09, TRAVERSE 09-12, VUE 08-10, YUKON 10, YUKON XL 1500 10.
Note: Specific options and IDs may apply. Please check the full fitment list in the product details to confirm.
Frequently Asked Questions
How does the VIN programming process work?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit VIN. Our technicians will use this information to program the module with the correct software and vehicle-specific settings before we ship it to you.
What is a ‘cloning service’?
Our cloning service transfers key data from your original BCM to this replacement unit. This helps ensure seamless integration with your vehicle’s other electronic systems, like the anti-theft and keyless entry, minimizing the need for additional programming after installation.
Do I need to send my old BCM to you?
No, you do not need to send us your original module. We program the replacement using your VIN. Per our policy, we always return the customer’s original module if it is sent to us for data recovery, along with the newly programmed unit.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. A faulty BCM is a very common cause for anti-theft system errors on these GM vehicles. By programming this module to your VIN, it will correctly communicate with your vehicle’s immobilizer system, typically resolving this issue.
Is this a simple plug-and-play installation?
Because we pre-program the module to your VIN, it is as close to plug-and-play as possible. You will not need a trip to the dealer for initial programming. However, as noted, some vehicles may require a simple relearn procedure for the airbag or brake systems, which can sometimes be done with a high-end bidirectional scan tool.