Restore Full Electrical Function to Your GM Vehicle
Are you battling frustrating electrical gremlins in your vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or random warning lights on the dash are common signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can cause a wide array of confusing and unpredictable problems. This replacement Body Control Module, part number 20815898, is the definitive solution to restore your vehicle’s systems to factory-perfect operation.
Expert Pro Tip: Before diagnosing a faulty BCM, always check the basics first. A weak or failing battery, poor battery cable connections, or a bad ground wire can cause symptoms that mimic BCM failure. Ensure your battery is fully charged and all connections are clean and tight to avoid a misdiagnosis.
Why Choose Our Programmed 2012 Captiva Sport BCM?
Unlike a standard replacement part from a dealership, this BCM arrives at your door pre-programmed for your specific vehicle. We use your Vehicle Identification Number (VIN) to load the latest GM software and vehicle-specific configurations before we ship. This means no expensive trip to the dealer for programming, saving you time and money. It’s designed for a straightforward installation, getting you back on the road faster.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-working interior and exterior lights.
- ✔ Power windows, locks, or mirrors behaving unpredictably.
- ✔ The anti-theft or security system preventing the car from starting.
- ✔ Dashboard warning lights illuminating for no reason (e.g., ABS, Airbag, Traction Control).
- ✔ Horn, wipers, or radio not functioning correctly.
- ✔ Key fob not responding or intermittent operation.
Installation and Post-Install Information
After you purchase, simply provide us with your vehicle’s VIN. We will handle the programming and ship the module to you. While the module is programmed for your vehicle, some models may require simple relearn procedures after installation. These are often necessary to sync the new BCM with other modules in your vehicle.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration may be needed on some models to ensure proper brake light and traction control functionality.
Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Wide-Ranging GM Compatibility
This BCM is a direct replacement for a vast number of GM vehicles and part numbers, ensuring broad compatibility. It fits models like the Chevrolet Equinox, Express Van, Impala, Traverse, Tahoe, Suburban; GMC Acadia, Savana Van, Yukon; Cadillac DTS, CTS, Escalade; Buick Enclave, Lucerne, and many more. This unit replaces 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.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It acts as a central hub for these functions.
Is this BCM truly plug-and-play?
Because we program it to your VIN, it is as close to plug-and-play as possible. It eliminates the need for dealer programming. However, as noted, some vehicles may require minor post-installation relearn procedures for systems like the airbags or brake sensor.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the part until we receive this information.
What happens if I install a BCM that isn’t programmed?
An unprogrammed BCM will not work correctly. It may cause the vehicle not to start, or multiple electronic features will fail to operate because the module doesn’t recognize the other components in your specific vehicle.
Do I need to send my old BCM back?
No. This purchase does not require a core return. You can keep your original module.