Is your 2012 Captiva Sport or other GM vehicle suffering from bizarre electrical problems? Are your power windows, door locks, or interior lights acting erratically? These are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating and seemingly unrelated issues. This replacement Body Control Module, part number 20864768, is the definitive solution to restore full functionality and reliability to your vehicle.
Unlike a generic part from a local store, this BCM is not a one-size-fits-all solution. We provide a crucial, time-saving service: we program the module specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM software updates already installed, ready for a straightforward installation. You avoid expensive trips to the dealership for programming, saving you both time and money. Simply provide your VIN after purchase, and our experts will handle the complex flashing process before shipping.
From the Diagnostic Bay
I once had a 2011 GMC Acadia come in with a complaint of the battery dying overnight. The owner had already replaced the battery twice and the alternator once, spending hundreds of dollars with no fix. All the standard parasitic draw tests were inconclusive. The culprit? A faulty BCM that was failing to let other modules go to ‘sleep’ after the key was off. It was a tiny internal short causing a massive headache. Replacing the BCM solved the problem instantly. It’s a reminder that electrical gremlins often trace back to the central controller, not just the power source.
Symptoms of a Failing 2012 Captiva Sport BCM
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, your Body Control Module is the most likely cause:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (staying on, not turning on, flickering).
- ✔ Malfunctioning windshield wipers or washers.
- ✔ The security system or keyless entry system failing to work correctly.
- ✔ Warning lights appearing on the dashboard for no apparent reason.
- ✔ Issues with the radio or climate control system.
- ✔ The vehicle failing to start, even with a good battery and starter.
Plug-and-Play Installation & Post-Install Steps
Because we program the module to your VIN, installation is greatly simplified. In most cases, it is a direct plug-and-play process. However, depending on your vehicle’s specific configuration, a couple of additional steps, known as relearn procedures, might be necessary after the BCM is installed. These procedures sync the new BCM with other modules in your car.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed. This requires a professional-grade scan tool to sync the airbag system with the new BCM and clear the light.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration. This ensures your brake lights and traction control system function as intended.
Please note: Specific procedures can vary by vehicle. We always recommend consulting a factory service manual or a qualified technician for guidance.
Guaranteed Fitment & Part Number Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. If your original module has any of the following numbers, this unit is the correct replacement for you:
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.
This part fits a broad selection of models including the Chevrolet Captiva Sport, Equinox, Impala, Express Van, Tahoe, Suburban; GMC Acadia, Savana Van, Yukon; Buick Enclave, Lucerne; Cadillac DTS, CTS, Escalade; and many more. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors a wide variety of non-engine-related functions. This includes power windows, locks, lights, wipers, security systems, and climate controls. It acts as a central hub for these electronic accessories.
Do I need to program this BCM after I receive it?
No. The main benefit of our service is that we program the module for you before it ships. You just need to provide us with your vehicle’s VIN number during checkout or via message, and we handle the rest. This saves you a costly trip to the dealership.
Where is the BCM located on my vehicle?
The location varies by model. Common locations for the vehicles this part fits include behind the center dash, on the left-hand (driver’s side) of the dash, under the steering column, or on the right-hand side of the dash. A quick search for your specific year, make, and model will provide the exact location.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming is essential for the BCM to communicate correctly with the other computers in your vehicle. We will hold your order and contact you to get the VIN to ensure you receive a fully functional, ready-to-install part.
Will this fix my car’s specific electrical problem?
If your vehicle is exhibiting symptoms like erratic lights, non-working power accessories (windows/locks), or security system faults, a failing BCM is the most common cause. This part is designed to resolve those issues. However, always ensure proper diagnosis has been performed to rule out wiring or switch failures.
Are there any other costs, like a core charge?
No, there is no core charge for this module. You can keep your original part without needing to send it back to us.