Restore Your Acadia’s Electrical System with a Hassle-Free Solution
If you’re dealing with bizarre electrical issues in your 2007-2012 GMC Acadia—like flickering dash lights, unresponsive power windows, or a security system that has a mind of its own—you’ve likely met the culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can turn your daily drive into a frustrating guessing game. This isn’t just an inconvenience; it can affect vehicle security and safety systems. This replacement BCM, programmed specifically for your vehicle via our professional cloning service, is the reliable, straightforward fix you need.
A Technician’s Notebook: The Case of the Haunted Acadia
I remember a 2011 Acadia that rolled into my bay with a list of symptoms that sounded like something from a ghost story. The interior lights would fade in and out randomly, the radio would shut off, and the ‘Service StabiliTrak’ message would appear for no reason. The owner had already replaced the battery and checked the main grounds. After hooking up my scan tool, I found a series of U-codes (communication errors) pointing to a network breakdown. The common link? The BCM. A failing BCM can broadcast corrupted data across the CAN bus network, causing other modules to act erratically. By installing a correctly programmed BCM, we restored communication and resolved every single one of those phantom problems. This is a classic failure pattern I’ve seen hundreds of times on these GM platforms.
What is a Cloning Service? Your Key to a Simple Repair
Forget expensive trips to the dealership for programming. Our unique cloning service makes this repair as simple as possible. Here’s how it works: You send us your original BCM. We then perform a direct data transfer, copying all the critical, vehicle-specific information—like the VIN, mileage, and key immobilizer data—to this replacement module. The result is a BCM that is a perfect electronic match for your Acadia. It arrives at your door ready for installation, with no additional programming or relearn procedures required for basic vehicle operation.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or alarm randomly activating or preventing the car from starting.
- ✔ False warnings on the dashboard, such as “Service Airbag” or “Service StabiliTrak.”
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), especially U-codes (e.g., U0140, U0155).
- ✔ Unresponsive key fob commands.
- ✔ Rapid battery drain while the vehicle is off.
A Straightforward Guide to Your BCM Installation
Installing your new 2007-2012 Acadia BCM is a manageable job for a confident DIYer. In the Acadia, the BCM is typically located on the driver’s side, under the dashboard to the left of the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: You may need to remove the lower dash panel or knee bolster to get a clear view of the BCM. It’s a black box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have release tabs that need to be pressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount the new, cloned BCM in the same location and securely reconnect all the wiring harnesses. You should hear a click as they lock into place.
- Power Up: Reinstall any panels you removed and reconnect the negative battery terminal. Your vehicle’s core functions should now be restored.
Important Post-Installation Checks
While our cloning service handles the primary programming, some vehicle safety systems may require a quick sync. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control operation.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a professional mechanic if you are unsure about any step.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15819552 and is compatible with a wide range of GM vehicles. Please verify your part number and check the list below. This module fits the following models:
This part is also a direct replacement for the following part numbers: 10382479, 15093910, 15276271, 15299986, 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.