Restore Full Functionality to Your GM Vehicle
If you’re dealing with perplexing electrical issues in your 2007-2012 GMC Acadia, you know how frustrating it can be. One moment the power windows work, the next they don’t. The security light might be flashing for no reason, or worse, the vehicle won’t start at all. As a technician with over two decades of experience, I’ve seen these exact problems hundreds of times, and they almost always point to a failing Body Control Module (BCM). This isn’t just a part; it’s the central hub for your vehicle’s body electronics, and when it fails, chaos ensues.
We offer a straightforward and reliable solution. Instead of buying a blank module and paying for expensive dealership programming, our professional cloning service makes this a plug-and-play repair. Simply send us your original BCM, and we will transfer all of your vehicle’s specific data—including the VIN, mileage, and RPO codes for your options—to a fully tested replacement unit. We then ship both your original module and the ready-to-install replacement back to you. This preserves all original functionality and eliminates the need for additional programming or relearn procedures in most cases.
A Technician’s Notebook: The Acadia That Played Possum
A customer brought in a 2010 Acadia with a list of complaints that seemed unrelated. The radio would cut out, the driver’s side power lock was dead, and the liftgate would sometimes refuse to open. They had already replaced the battery and checked fuses. Diagnostics showed a series of communication codes (U-codes) pointing to the BCM. The key was the intermittent nature of the faults. On the lift, I noticed that wiggling the main harness going into the BCM, located under the driver’s side dash, would make the interior lights flicker. This is a classic sign of an internal failure on the BCM’s circuit board. By using our cloning service, we transferred the vehicle’s data to a replacement BCM. The installation took less than 30 minutes, and every single electrical gremlin was gone. The customer saved hundreds compared to the dealership quote and avoided a multi-day wait for programming.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. If your vehicle is experiencing any of the following, a faulty Body Control Module is the likely culprit:
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system light is on, or the alarm goes off randomly.
- ✔ Key fobs are no longer recognized by the vehicle.
- ✔ Communication error codes, such as U0140, U0155, or other U-series DTCs.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
- ✔ Instrument cluster gauges behaving erratically or going dead.
A Straightforward Guide to Installation
Installing your newly programmed BCM is a manageable task for a confident DIYer. While the exact location varies slightly by model, the process is generally similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On the 2007-2012 Acadia, the BCM is typically found under the driver’s side of the dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect the Module: Carefully unplug the electrical connectors from the old BCM. Most have a locking tab that needs to be depressed or a lever that needs to be swung over to release the connector. Do not force them.
- Swap the Modules: Remove the mounting bolts or clips holding the old BCM in place and install the replacement module.
- Reconnect and Reassemble: Plug the electrical connectors firmly into the new BCM until they click into place. Reinstall any trim panels you removed and reconnect the negative battery terminal.
- Final Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc.—to confirm the repair.
Important Post-Installation Information
While our cloning service makes this a near plug-and-play process, some GM vehicles may require a simple relearn procedure after installation. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag (SRS) warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is only required if the light is on.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be needed to ensure correct operation of the brake lights and stability control system.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM is a direct fit for the 2007-2012 GMC Acadia and is also compatible with a wide range of other GM vehicles. It replaces numerous part numbers, ensuring broad applicability. Please verify your part number or match your vehicle from the list below.
Direct Replacement for 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
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, 22860591
CTS 08 Body Control (BCM); RH dash
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/SAVANA VANS 08-12 (See full list for specific engine/model details)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-12 Body Control (BCM); (LH dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
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)
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
Frequently Asked Questions
How does the cloning service work?
After you place your order, you will ship your original BCM to us. We use specialized equipment to read the unique programming and security data from your module and write it onto a replacement unit. This creates a functional clone of your original part.
Why do you need my VIN number?
We use your Vehicle Identification Number (VIN) to access the latest software updates from GM. This ensures your replacement BCM is loaded with the most current and stable firmware available for your specific vehicle, correcting potential factory bugs.
Do I get my old part back?
Yes. Your original module is always returned to you along with the programmed replacement unit. We do not keep the core part.
Is this truly plug-and-play?
For over 95% of vehicles, yes. Because we are cloning your existing data, the vehicle recognizes the new module as the original. In rare cases, a security or relearn procedure like the Airbag System Sync may be required, which can be done with a high-end scan tool.
What happens if I install it and still have problems?
While this module is often the solution, vehicle diagnostics can be complex. If issues persist, it may indicate another problem (e.g., wiring, a different module). Our team of experts is here to provide support and help you diagnose the issue further.