Tired of Electrical Gremlins in Your GMC Acadia?
If you’re dealing with bizarre electrical issues in your 2007-2012 GMC Acadia—like power windows with a mind of their own, flickering interior lights, a security system that won’t cooperate, or a key fob that works intermittently—you’re not alone. These are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to go, it can cause a cascade of frustrating and seemingly unrelated problems. In my 20+ years of experience, I’ve seen how a faulty BCM can make a perfectly good vehicle feel unreliable.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We take the guesswork and the expensive trip to the dealership out of the equation. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program this BCM with the latest GM-certified software specifically for your Acadia. It arrives at your door ready for a straightforward installation, restoring the functionality and reliability you depend on.
A Technician’s Notebook
“A customer brought in their 2011 Acadia last month with a dead battery every morning. They had already replaced the battery and alternator. After checking for a parasitic draw, I traced it back to the BCM, which wasn’t letting the interior lighting circuit go to sleep. It’s a common failure point on these platforms. We installed a pre-programmed BCM just like this one, and the problem was solved instantly. The customer was thrilled to avoid a multi-day stay at the dealership and a much larger bill.”
Is Your Acadia Showing These BCM Failure Signs?
A failing BCM can manifest in many ways. If you’re noticing any of the following, it’s a strong indicator that your BCM needs attention:
- ✔ Power windows, door locks, or mirrors behaving erratically or not working at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is on, or the system is malfunctioning.
- ✔ Keyless entry remote (fob) is unresponsive or works sporadically.
- ✔ The instrument cluster displays incorrect information or warning lights are illuminated for no reason.
- ✔ The vehicle won’t start, accompanied by a rapid clicking sound, even with a good battery.
- ✔ HVAC (heating and air conditioning) controls are not responding correctly.
Your Straightforward BCM Installation Guide
Installing your new 2007-2012 Acadia BCM is a manageable job for a confident DIYer. The BCM is typically located on the left-hand (driver’s) side of the dash. Follow these general steps for a successful replacement:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before beginning work. This prevents electrical shorts and allows modules to power down.
- Access the Module: You will likely need to remove the lower dash panel beneath the steering column to gain access to the BCM. It’s usually mounted to a bracket with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all 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 BCM: Mount your new, pre-programmed BCM onto the bracket and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reinstall any panels you removed and reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) and test the functions: windows, locks, lights, etc.
Important Post-Installation Steps
After installing your new BCM, a couple of procedures may be necessary to ensure full system integration and safety:
- Airbag System Reset: If the airbag warning light is on, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This re-establishes communication between the BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require a brake pedal position sensor recalibration. This ensures the brake lights and stability control systems function correctly. This also requires a proper diagnostic tool.
If you are not equipped to perform these steps, a local qualified mechanic can complete them for you.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for a wide range of GM vehicles. While this listing is focused on the Acadia, please verify your part number or vehicle in the list below. This module replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 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.
Fits models including, but not limited to:
- ✔ 2007-2012 GMC ACADIA
- ✔ 2008-2012 BUICK ENCLAVE
- ✔ 2009-2012 CHEVROLET TRAVERSE
- ✔ 2007-2010 SATURN OUTLOOK
- ✔ 2006-2013 CHEVROLET IMPALA
- …and many other GM cars, trucks, and vans. Please check the detailed fitment list.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions. This includes power windows, power locks, interior and exterior lighting, the security system, keyless entry, and even the wipers and HVAC controls.
Is this BCM really plug-and-play?
Yes! Because we program it to your vehicle’s specific VIN before shipping, it eliminates the need for you to take it to a dealer for expensive programming. You just need to install it. Some vehicles may require simple relearn procedures for certain systems, as noted in the description.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it.
Do I need to send my old BCM back?
No, there is no core charge or need to return your old, faulty module. You can recycle it locally.
Where is the BCM located on my 2007-2012 Acadia?
On the GMC Acadia and its platform mates (Traverse, Enclave, Outlook), the BCM is located on the driver’s side, up under the dashboard to the left of the steering column.
Will this fix my ‘Service Stabilitrak’ or ‘Service Traction Control’ message?
While a faulty BCM can sometimes contribute to these warnings by sending bad data, those messages are more commonly caused by other issues like wheel speed sensors or the steering angle sensor. It’s best to have the specific trouble codes read before replacing the BCM for this issue alone.