Restore Your Acadia’s Electrical System with a Plug-and-Play Solution
Are you chasing down frustrating electrical gremlins in your 2007-2012 GMC Acadia? One minute the power windows work, the next they don’t. Maybe the security light is flashing, the interior lights have a mind of their own, or worse, the vehicle won’t start at all. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times, and they often point to one culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s comfort and convenience features, and when it starts to fail, it can cause a cascade of bizarre, unrelated problems.
Don’t let a faulty module keep you off the road or force you into an expensive dealership visit. We offer a reliable, cost-effective solution. This Body Control Module, part number 25934762, is not just a replacement part; it’s a complete fix. We professionally program the module to your vehicle’s specific VIN before it ships. This means no extra tools, no expensive software subscriptions, and no trip to the dealer for programming. It arrives at your door ready for installation, loaded with the latest GM software updates to ensure peak performance and reliability. This is the most direct way to solve those electrical headaches and get your Acadia running properly again.
A Technician’s Notebook: The Haunted Acadia
Just last month, a 2011 Acadia was towed into my bay. The owner was at his wit’s end. The instrument cluster would randomly go dark, the radio would cut out, and the power liftgate was completely unresponsive. He had already replaced the battery and checked all the fuses. A quick scan with my diagnostic tool revealed a slew of communication error codes, specifically U0140 (Lost Communication With Body Control Module). This told me the BCM wasn’t talking to the other modules on the network. After confirming the power and ground connections to the BCM were solid, I knew the internal circuitry had failed. We replaced it with one of our pre-programmed units, and within an hour, every single electrical issue was gone. It’s a classic case where a single component failure makes the entire vehicle seem possessed.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely cause. A failing module can sometimes set diagnostic trouble codes (DTCs) like U0140, B1001, or other B-series (Body) or U-series (Network) codes.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is illuminated, preventing the engine from starting.
- ✔ Inaccurate readings on the instrument panel gauges.
- ✔ Remote keyless entry (fob) not working correctly.
- ✔ The radio or infotainment system randomly shutting off.
- ✔ The “Service Stabilitrak” or other warning messages appearing on the dash.
A Straightforward Guide to BCM Installation
For the 2007-2012 GMC Acadia, the BCM is located on the left (driver’s) side of the dash. While this is a direct replacement, always exercise caution when working on your vehicle’s electrical system.
- Safety First: 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 will likely need to remove the lower dash panel beneath the steering wheel to gain access to the BCM. It’s typically 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: Re-install the dash panel, reconnect the negative battery terminal, and start the vehicle. Test all functions like lights, locks, and windows to confirm the repair.
Critical Post-Installation Procedures
After installing your new BCM, a few additional steps are required to ensure all vehicle systems communicate correctly. This is crucial for safety and full functionality.
- Airbag System Reset: The airbag warning light may be on after replacement. A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This re-establishes the security handshake between the BCM and the airbag module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require a brake pedal position sensor recalibration. This ensures the brake lights and stability control system function as intended. This also typically requires a professional diagnostic tool.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers. Please verify your vehicle is on the list below. This unit replaces 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 (under steering column), ID 25892622
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash)
CTS 08-13 (LH/RH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE 10 (under steering column)
ESCALADE ESV 10 (under steering column)
ESCALADE EXT 10 (under steering column)
EXPRESS 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)
SAVANA VANS 08-12 (center dash)
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column)
TAHOE 10 (under steering column)
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON 10 (under steering column)
YUKON XL 1500 10 (under steering column)
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that manages the electronic accessories in your vehicle’s body. It controls non-engine related functions like the power windows, locks, lights, wipers, security system, and instrument cluster. Think of it as the brain for all the comfort and convenience features.
Do I really need to provide my VIN?
Yes, it is essential. We use your Vehicle Identification Number (VIN) to program the module with the correct software and vehicle-specific options. This ensures it communicates properly with the other computers in your Acadia and functions exactly as the original did.
Is any other programming required after I install it?
The main programming is done by us before shipping. However, as noted above, you will need to have a professional technician perform the ‘Setup SDM Primary Key’ and potentially a ‘Brake Pedal Position Sensor Relearn’ using a professional scan tool to clear airbag lights and ensure safety systems are active.
Where is the BCM located on a 2009 GMC Acadia?
On the 2007-2012 GMC Acadia, the BCM is located behind the dashboard on the driver’s side, to the left of the steering column. You will need to remove the lower dash trim panel to access it.
Will this fix my ‘Service Theft Deterrent System’ message?
In many cases, yes. The BCM is a critical part of the Pass-Key III+ or similar GM anti-theft systems. A failing BCM can disrupt communication and trigger this warning, preventing the car from starting. Our VIN programming ensures the security data matches your vehicle.