End the Electrical Gremlins in Your Buick Enclave
If you’re dealing with flickering dash lights, power windows with a mind of their own, or a security system that randomly acts up, you’re likely facing a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of daily frustration. It’s the central computer for your car’s comfort and convenience features, and when it goes, it can cause a cascade of confusing problems. This isn’t just an annoyance; it can affect vehicle security and safety systems.
This replacement Body Control Module is the definitive solution for your 2008-2012 Buick Enclave. We take the biggest hassle out of the repair process: programming. Simply provide us with your vehicle’s VIN during checkout, and our experts will program the module with the latest GM software specifically for your vehicle. It arrives at your door ready to be installed, saving you from costly dealership programming fees and long wait times. Restore your Enclave’s proper function and your peace of mind.
Case Study: The Lambda Platform Gremlin
A customer brought in a 2011 Acadia (which shares its platform and BCM with the Enclave) with a truly bizarre issue. The radio would randomly shut off, the dome lights would flicker while driving, and occasionally the liftgate wouldn’t open. They had already replaced the battery and checked the main grounds. Diagnostics showed no consistent trouble codes, just a few intermittent U-codes pointing to lost communication. In my shop, I’ve learned that these ‘ghost’ issues on GM’s Lambda platform vehicles are classic signs of an internally failing BCM. The circuit board develops micro-fractures, causing sporadic connections. We installed a VIN-programmed BCM, and every single issue vanished. It’s a textbook example of how this one part can solve a dozen different problems.
Is Your Enclave Showing These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution. Common diagnostic trouble codes (DTCs) associated with this failure include U0140, U0155, and other communication codes.
- ✔ Power windows or door locks operating erratically or not at all.
- ✔ Interior or exterior lights staying on or not turning on.
- ✔ The security system preventing the car from starting.
- ✔ Horn sounding unexpectedly or not working.
- ✔ Inaccurate readings on the instrument cluster.
- ✔ “Service StabiliTrak” or other warning messages appearing on the dash.
- ✔ Remote keyless entry failing to work consistently.
Your Straightforward BCM Installation Guide
For the confident DIYer, replacing the BCM in your Enclave is a manageable job. The BCM is typically located on the left-hand (driver’s) side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- 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. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New BCM: Mount your new, pre-programmed BCM onto the bracket and securely plug in all the electrical connectors. Ensure each one clicks into place.
- Reconnect and Test: Reinstall any trim panels you removed, then reconnect the negative battery terminal. Start the vehicle and test all functions: lights, windows, locks, radio, etc.
Important Post-Installation Note: In some cases, additional steps may be required. If the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position Relearn may also be necessary for proper brake light and traction control operation. Always consult a service manual for procedures specific to your vehicle.
Verified Compatibility for Your GM Vehicle
This BCM is a direct replacement for part number 25910474 and is compatible with a wide range of GM vehicles. It interchanges with numerous other part numbers, including: 10382479, 15093910, 15276271, 15819552, 20815898, 20935349, 22860591, 25892622, and many more. Please verify your vehicle is on the list below.
ACADIA 07-12 Body Control (BCM); (LH dash)
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)
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 Body Control (BCM); various configurations
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)
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 & YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is the electronic control unit responsible for managing many of your vehicle’s non-engine-related functions. This includes the power windows, power mirrors, power locks, air conditioning, interior lighting, exterior lighting, security system, and more. It’s the ‘brain’ for your car’s body electronics.
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) allows us to load the exact software and settings your Enclave had when it left the factory. This ensures all the specific options your vehicle is equipped with (like a sunroof, specific lighting, etc.) will work correctly with the new BCM. This VIN-specific programming makes the installation process much simpler for you.
Is this a difficult part for a DIYer to install?
For someone with basic mechanical skills and tools, this is a very manageable repair. The main challenge is typically accessing the module, which is located under the dashboard. Since we handle the programming, the electrical part of the job is just unplugging the old module and plugging in the new one.
What if my airbag light comes on after I install it?
This can happen occasionally. The BCM and the airbag system (SDM) are linked for security. If the light appears, it means they need to be re-synced. This requires a professional-grade scan tool to perform a procedure called ‘Setup SDM Primary Key in BCM’. A well-equipped independent shop can typically perform this service.
Do I need to send my old BCM back to you?
No, there is absolutely no core charge for this part. You can keep your old module, which saves you the time, cost, and hassle of shipping a core back.