Restore Full Electronic Functionality to Your GM Vehicle
Are you battling bizarre electrical issues in your Buick Lucerne, Chevy Impala, or GMC Acadia? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are common indicators 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 cause a cascade of frustrating and seemingly unrelated problems. This replacement BCM, part number 20864768, is the definitive solution to restore order and reliability to your car’s essential features.
From the Diagnostic Bay
We had a 2008 Buick Lucerne come in with a classic case of electronic chaos. The customer reported the radio would turn on and off, the interior dome lights would flicker while driving, and occasionally the car wouldn’t start, despite having a new battery. After checking the main power and ground connections, we hooked up our diagnostic scanner and found multiple communication loss codes with various modules. This pointed directly to the BCM. Instead of a costly trip to the dealer for a new module and programming fees, the customer opted for one of our pre-programmed units. We installed it, the car started right up, and all the strange electrical gremlins were gone. It’s a straightforward fix that saves hundreds in dealership costs.
Is Your Body Control Module Failing?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, a replacement may be necessary:
- ✔ Power windows, locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on or not turning on.
- ✔ Vehicle security system engaging randomly or preventing the car from starting.
- ✔ Dashboard warning lights (like ABS or Airbag) illuminating without a clear cause.
- ✔ Climate control system behaving erratically.
- ✔ Radio or infotainment system malfunctions.
Plug-and-Play Solution for Your 2006-2011 Lucerne Body Control Module
Forget expensive dealership visits and complex programming procedures. We make the process simple. When you purchase this 2006-2011 Lucerne Body Control Module, we will flash it with the latest GM software updates, specifically coded to your vehicle’s VIN. This ensures that the module is a true plug-and-play component, ready for installation right out of the box. All you need to do is provide us with your VIN during or after checkout, and we handle the rest. This not only saves you money but also significant time and hassle.
Important Post-Installation Information
While this module is programmed for your vehicle, certain systems may require a simple relearn procedure after installation. These can often be performed with a high-level diagnostic scan tool. Please be aware of the following potential requirements:
- Airbag System Sync: If the 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. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and traction control function.
This BCM is a direct replacement for a wide range of part numbers, including: 10382479, 15093910, 15276271, 15819552, 15828601, 15872388, 20864768, 22860591, 25892622, 25934762, and many more listed in the fitment guide. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It acts as a central hub for these functions.
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before we ship it to you. This makes the installation process much simpler, as it’s ready to be installed upon arrival.
What information do you need from me?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). This is crucial for us to program the BCM correctly for your specific car and its options.
Is this a guaranteed fix for my car’s electrical problems?
This module will resolve issues directly caused by a failing BCM. While the symptoms listed are very common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before ordering.
What if my airbag light is on after I install the new BCM?
This can happen. It means the new BCM needs to be synchronized with your vehicle’s existing airbag module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.