If your 2007-2012 GMC Acadia is starting to act haunted—with flickering lights, a haywire security system, or power windows with a mind of their own—you’re not alone. As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times. The culprit is almost always a failing Body Control Module (BCM), the central computer for your vehicle’s comfort and security features. A bad BCM can be incredibly frustrating, but the fix doesn’t have to be a costly trip to the dealership.
This is a direct-replacement BCM, part number 25934763, that solves these problems without the hassle. The best part? We handle the complex programming for you. This isn’t just a part in a box; it’s a complete solution. Through our Cloning Service, we transfer the critical data from your original, faulty module to this replacement unit. This means when you receive it, it’s plug-and-play. No expensive diagnostic tools, no towing your vehicle to a shop for programming—just a straightforward installation that gets you back on the road with confidence.
Case Study: A Tricky Diagnosis
I remember a 2011 Acadia that came into my bay with a persistent “Service StabiliTrak” message and brake lights that stayed on. The owner had already replaced the brake switch twice. After checking the wiring, my scan tool pointed to communication errors with the BCM. We performed our cloning service on a replacement module. Once installed, the StabiliTrak light went out, the brake lights functioned correctly, and the customer was thrilled to have a reliable vehicle again. It’s often the central module, not the individual components, causing the chaos.
Common Signs of a Failing BCM
A faulty BCM can cause a wide range of confusing electrical issues. If your Acadia or other compatible GM vehicle is showing these signs, your BCM is likely the cause:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights).
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security system engaging randomly or preventing the car from starting (Security light on).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Dashboard warning lights appearing for no reason (e.g., ABS, Airbag, Traction Control).
- ✔ Communication loss Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes.
- ✔ Wipers turning on by themselves or not responding to the switch.
Your Straightforward BCM Installation Guide
Installing your programmed BCM is a manageable job for a DIYer. Here’s a general guide for a GMC Acadia. Location may vary on other models.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to discharge completely.
- Locate the BCM: On the 2007-2012 Acadia, the BCM is typically located on the left (driver’s) side of the dashboard, often behind the lower dash panel near the steering column.
- Remove Trim Panels: You will likely need to remove the lower dash panel beneath the steering wheel to gain access. These are usually held by a few screws and clips.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: lights, locks, windows, wipers, and horn.
- Post-Installation Checks: In some cases, a relearn procedure may be needed. If your airbag light is on, a professional scan tool is required for the ‘Setup SDM Primary Key in BCM’ procedure. A brake pedal position relearn might also be necessary for proper brake light and traction control operation.
Verified to Fit These GM Models
This BCM is a direct replacement for part number 25934763 and interchanges with a wide range of other part numbers. It is confirmed to fit the following vehicles. Please match your part number or contact us with your VIN to ensure compatibility.
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, or 22860591
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS VANS 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SAVANA VANS 08-12 Body Control (BCM)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
What exactly is the Cloning Service?
Our Cloning Service is a process where we transfer the essential, vehicle-specific configuration data (including VIN, security information, and option content) from your original BCM to the replacement unit. This makes the new module a true plug-and-play solution, eliminating the need for dealership programming.
Do I need to send you my original BCM?
Yes. For the cloning service to work, we need your original module to extract the data. We will ship your original module back to you along with the fully programmed replacement. We do not keep your old part.
Will I need any special tools for installation?
No special programming tools are required. Installation typically requires basic hand tools like a socket set and screwdrivers to remove dash panels. The module itself is plug-in.
What if my airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be synchronized with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed by a professional shop with a high-level diagnostic scan tool.
Is this part compatible with other part numbers?
Yes, this BCM, 25934763, is a direct replacement for many other GM part numbers. Please check the extensive list in our description. If you’re unsure, send us a message with your VIN and we’ll verify compatibility for you.
How do I provide you with my VIN?
After you complete your purchase, please send us a message with your vehicle’s 17-digit VIN. We need this to ensure the programming is loaded with the correct software updates for your specific vehicle before we ship the module.