Restore Full Control and Eliminate Electrical Gremlins
Are you chasing down frustrating electrical issues in your Buick Enclave? Flickering lights, malfunctioning power windows, a security system that acts up, or random warning messages on the dash are all classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it starts to fail, it can make driving a nightmare. This isn’t just an annoyance; it can be a safety concern. This direct-fit BCM, part number 20815898, is the reliable solution to restore your vehicle’s proper function and your peace of mind.
A Technician’s Notebook
Just last month, a 2011 Enclave was brought into the shop with a list of bizarre symptoms. The owner complained that the dome lights would stay on, the radio would randomly shut off, and the liftgate wouldn’t open with the remote. A scan showed a slew of communication errors pointing towards the BCM. After confirming power and ground to the module were solid, we knew the internal logic had failed. Swapping in a pre-programmed BCM like this one resolved every single issue in one go. The key is the VIN-specific programming; it ensures all the vehicle’s unique options are recognized immediately, saving hours of diagnostic and programming headaches.
Is Your Enclave Showing These Symptoms?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (flickering, staying on/off).
- ✔ False security system alarms or key fob recognition issues.
- ✔ Unexplained battery drain that leaves you stranded.
- ✔ Warning lights on the dashboard related to various body systems.
- ✔ Communication error codes with other modules (DTCs starting with ‘U’).
The Advantage: Pre-Programmed for Your Vehicle
The biggest hurdle in replacing a modern BCM is the programming. A blank module from the dealer requires expensive, specialized tools and software. We eliminate that step for you. Simply provide us with your vehicle’s VIN (Vehicle Identification Number) during checkout, and our technicians will program this 2008 – 2012 Enclave BCM with the latest GM software specific to your car. It arrives ready for installation, saving you a costly trip to the dealership.
A Straightforward Guide to Installation
For the confident DIYer, replacing the BCM is a manageable job. The BCM on the Enclave is typically located on the driver’s side, behind the lower part of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On the 2008-2012 Enclave, you’ll find the BCM mounted to the left of the steering column, behind the lower dash panel. You may need to remove a knee bolster panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the reverse order of removal. Ensure all bolts are secure and plug in the electrical connectors until they click firmly into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Final Steps: Follow the crucial post-installation procedures below to ensure all systems, including safety features, are correctly initialized.
Critical Post-Installation Steps
After installing your new 2008 – 2012 Enclave BCM, a couple of final procedures are required to ensure everything works correctly and safely. These steps require a professional-grade diagnostic scan tool.
- Airbag System (SRS): To clear the airbag warning light, you must perform the ‘Setup SDM Primary Key in BCM’ procedure. This re-establishes the security handshake between the new BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake System: Some vehicles may require a ‘Brake Pedal Position Sensor Calibration’ to ensure the brake lights and stability control system function correctly.
Note: If you are not comfortable performing these steps, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles. While this listing focuses on the 2008 – 2012 Enclave BCM, please verify your part number and vehicle in the list below. This module is compatible with 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: Acadia (07-12), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Express/Savana Vans (08-12), G8 (08-09), Hummer H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Tahoe/Yukon/Suburban/Avalanche/Escalade (10), Torrent (07-09), Traverse (09-12), Vue (08-10) and more. Please check the detailed fitment list to confirm your specific model and options.
Frequently Asked Questions
Do I need to program this BCM?
No. We handle the programming for you before shipment. Just provide your vehicle’s 17-digit VIN when you order, and it will arrive ready to be installed and initialized.
Where is the BCM located on my 2009 Buick Enclave?
The Body Control Module is typically located on the driver’s side of the vehicle, behind the lower dashboard panel to the left of the steering column.
Will this fix my car’s battery drain issue?
A faulty BCM is a very common cause of parasitic battery drain, as it can fail to let other modules go into ‘sleep’ mode. While this part often resolves that issue, proper diagnosis is always recommended to rule out other causes.
What tools are needed for the final setup procedures?
The final steps, like the SDM key setup and brake sensor calibration, require a bi-directional professional scan tool (such as a GM Tech 2, high-end Autel, or Snap-on scanner). Basic code readers cannot perform these functions.
Is this a new or used part?
This is a high-quality, fully tested replacement part that is guaranteed to perform to OEM standards. It is programmed with the latest software from GM for optimal performance and reliability.