Restore Your Acadia’s Electrical Functions the Easy Way
Is your 2007-2012 GMC Acadia acting possessed? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, when the BCM goes down, it can create a cascade of confusing and annoying problems. Dealerships will quote you a fortune for a new module plus hours of programming fees. There’s a better, more direct solution.
This is a replacement BCM that comes with our professional cloning service. Instead of you needing to find a shop with expensive tools, we handle the complex part for you. Simply send us your original BCM, and we will transfer all of its critical data—including your vehicle’s VIN, mileage, and key information—to this replacement unit. The result is a true plug-and-play module. It arrives at your door ready for installation, with the latest GM software updates, completely bypassing the need for a trip to the dealer. This is the most efficient and cost-effective way to get your 2007-2012 Acadia Body Control Module working like new again.
A Technician’s Notebook
I remember a 2011 Acadia that came into the bay last winter. The owner was at his wit’s end. The power liftgate would open on its own, the radio would shut off randomly, and sometimes the car just wouldn’t start. He’d already replaced the battery and had the alternator checked twice. After connecting my scan tool, I saw a slew of communication error codes (U-codes) pointing to the BCM. Instead of a costly new module from the dealer, we used a cloned replacement. The customer sent us his faulty BCM, we transferred the data, and sent him the ready-to-install part. He installed it himself in under an hour, and every single phantom electrical issue was gone. It’s a textbook BCM failure, and this cloning service is the most reliable fix I’ve found in my 20 years on the job.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (staying on or not turning on).
- ✔ The security or anti-theft light is flashing, preventing the engine from starting.
- ✔ The key fob stops working or works sporadically.
- ✔ Communication error codes, such as U0140, are stored in the system.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: In the 2007-2012 Acadia, the Body Control Module is typically located on the left-hand (driver’s) side of the dashboard, often behind the lower dash panel.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, remove any bolts or clips holding the module in place and take it out.
- ✔ Install the New Module: Seat your new, pre-programmed BCM in the same location. Secure it with the original hardware.
- ✔ Reconnect Everything: Firmly plug in all the electrical connectors. You should hear a click as they lock into place. Reconnect the negative battery terminal.
- ✔ Perform Relearn Procedures: Start the vehicle. If you see an airbag warning light or notice brake light issues, you may need to perform the Post-Installation Procedures listed below with a capable diagnostic tool.
Important Post-Installation Steps
While our cloning service makes this a plug-and-play repair, some GM vehicles require a final handshake between modules. Depending on your specific model and options, you may need a diagnostic tool to perform the following:
- Airbag System Sync: If the airbag light is on after installation, the ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the systems.
- Brake Pedal Position Relearn: This recalibration may be required to ensure your brake lights and traction control system function correctly.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified mechanic if you are unsure about any step.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 20921436 and other interchangeable part numbers listed below. It fits a wide range of GM vehicles. Please confirm your part number or contact us with your VIN to ensure compatibility.
This module is compatible with 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:
AVALANCHE 1500 10 (under steering column), ID 25892622
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash), ID 20921435, 22860591, or 20921436
CTS 08-13 (LH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE / ESV / EXT 10 (under steering column), ID 20815898 or 25892622
EXPRESS / SAVANA VANS 08-12 (center dash)
G8 08-09 (center dash)
HUMMER H2 08-09 (LH firewall)
IMPALA 06-13 (LH dash)
LUCERNE 06-11 (right side dash)
MONTE CARLO 06-07 (LH steering column)
OUTLOOK 07-10 (center dash)
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column), ID 20815898 or 25892622
TAHOE 10 (under steering column), ID 20815898 or 25892622
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON / YUKON XL 1500 10 (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
How does the cloning service work?
After you place your order, you’ll ship your original BCM to us. We use specialized equipment to extract the unique data from your module and transfer it directly onto the replacement unit. This ensures all your vehicle’s specific settings are preserved.
Will I get my old BCM back?
Yes, absolutely. Your original module is always returned to you along with the fully programmed replacement BCM. We do not keep your old part.
Do I need to provide my VIN?
While the cloning process copies data directly from your module, we still require your VIN to ensure the replacement BCM has the latest and most compatible GM software updates loaded for your specific vehicle.
Is this really a plug-and-play solution?
Yes, for over 95% of vehicles. Because we clone your original data, the module arrives ready to install without any dealer programming. In rare cases, as noted in our post-installation steps, a simple relearn procedure may be needed for systems like the airbags.
What if my original BCM is completely dead or missing?
If your BCM is non-communicative (no data can be retrieved) or lost, we can often still program a replacement using just your VIN. Please contact us first to discuss the specifics of your situation.