Restore Full Electrical Function to Your Vehicle
Are you battling frustrating and unpredictable electrical problems in your Buick Enclave or other GM vehicle? Flickering lights, malfunctioning power windows and locks, a security system that acts on its own, or a battery that mysteriously drains overnight 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 baffling issues. This replacement Body Control Module, part number 20864768, is the definitive solution to restore your vehicle’s electrical systems to factory-perfect operation.
We take the guesswork and high costs out of the equation. Unlike a trip to the dealership, which involves expensive programming fees and vehicle downtime, our service is simple and straightforward. After your purchase, you provide us with your vehicle’s VIN. Our technicians will then program this BCM with the latest GM software updates specific to your exact vehicle configuration. This ensures that when the module arrives, it’s ready for a direct installation, communicating seamlessly with your car’s other systems right out of the box.
We had a 2011 Buick Enclave come into the shop with a complaint that was driving the owner crazy. The interior lights would flicker randomly, the radio would sometimes not turn on, and occasionally the liftgate wouldn’t open with the remote. They had already replaced the battery twice, assuming it was a power issue. After running a full diagnostic scan, we found multiple communication error codes all pointing back to one culprit: the BCM. It was failing internally, sending erratic signals throughout the vehicle’s network. Installing a VIN-programmed 2008-2012 Enclave BCM like this one resolved all the phantom electrical gremlins instantly. It’s a perfect example of how one failing module can mimic a dozen different problems.
Symptoms of a Failing 2008-2012 Enclave BCM
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your Body Control Module is the root cause. This module is the key to resolving these frustrating electrical issues and getting your vehicle back to a reliable state.
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Vehicle’s security system or keyless entry malfunctioning.
- ✔ Unexplained parasitic battery drain that leads to a dead battery.
- ✔ Warning lights appearing on the dashboard with no apparent cause.
- ✔ Wipers or horn activating unexpectedly.
- ✔ Communication issues with diagnostic scan tools.
Plug-and-Play Solution with Minor Relearns
Our goal is to make your repair as simple as possible. By programming the module to your VIN before shipping, we handle the most complex part of the job. For most installations, this is a direct swap. However, depending on your specific model, some simple post-installation procedures may be required to ensure all systems are perfectly synchronized.
- Airbag System Sync: If the airbag warning light illuminates 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 proper brake light and traction control operation.
This module is a direct replacement for a wide range of GM part numbers, including 15921352, 25892622, 22860591, and many more. It fits an extensive list of vehicles such as the GMC Acadia, Chevy Traverse, Saturn Outlook, Cadillac DTS, and Chevy Impala. Please verify your original part number against our comprehensive list to ensure perfect compatibility.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that acts as the central hub for your vehicle’s body-related electronic accessories. It controls functions that aren’t related to the engine, such as power windows, locks, lights, wipers, the security system, and interior climate controls.
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This VIN-specific programming is crucial for a successful, hassle-free installation and ensures all systems function correctly.
Is this a difficult part to install?
The physical installation is typically straightforward for someone with moderate DIY mechanical skill. The BCM is often located under the dash on the driver’s side. The main challenge is programming, which we handle for you. You will simply need to disconnect the battery, swap the modules, and reconnect the battery. Some post-install relearn procedures may be necessary.
What happens if my airbag light is on after installation?
This is a common occurrence. The new BCM needs to be electronically introduced to the vehicle’s airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by any competent repair shop with a professional-grade bidirectional scan tool.
Will this module fix my specific electrical problem?
If your vehicle is exhibiting multiple symptoms from the list above, such as erratic lights, lock issues, and battery drain, a failing BCM is the most probable cause. This part is designed to correct those specific failures. However, always perform proper diagnostics to rule out other issues like bad wiring or faulty switches.