Restore Full Electronic Functionality to Your Vehicle
Are you battling bizarre electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts on its own, or random warning lights on your dash are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. This replacement Body Control Module, part number 15276271, is the definitive solution to restore order and reliability to your car’s systems.
From the Diagnostic Bay
We once had a 2012 Impala in the shop with the strangest symptoms. The owner said the dome light would randomly turn on while driving, the radio would shut off, and the door locks would cycle for no reason. We checked grounds, wiring harnesses, and individual switches, but everything tested fine. The issues were so intermittent, they were impossible to replicate consistently. Finally, we focused on the BCM. After swapping it with a known-good unit, all the phantom electrical gremlins vanished. It’s a perfect example of how a single failing module can make a perfectly good car feel haunted.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, locks, or mirrors not working correctly.
- ✔ Vehicle security system faults or alarm sounding unexpectedly.
- ✔ Horn honking randomly or not working at all.
- ✔ False warning lights appearing on the instrument cluster (e.g., ABS, Airbag, Traction Control).
- ✔ Intermittent starting problems or no-start conditions.
- ✔ Wipers activating on their own or not responding to the switch.
Why Choose Our Pre-Programmed 2011-2013 Caprice BCM?
Replacing a BCM isn’t just about swapping hardware. A new module must be programmed to your vehicle’s specific Vehicle Identification Number (VIN) and factory options to function. We eliminate the need for an expensive trip to the dealership by programming this module for you before it ships. Simply provide your VIN during checkout, and you’ll receive a plug-and-play unit loaded with the latest GM software updates. This ensures seamless integration and proper operation of all your vehicle’s features.
Post-Installation Procedures
While our programming makes installation straightforward, some vehicles may require minor relearn procedures after the new BCM is installed. These can typically be performed with a high-level scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration may be necessary.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Broad GM Compatibility
This BCM is a direct replacement for a wide range of GM cars, trucks, and SUVs. It 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
Fits models such as Chevrolet Impala, Equinox, Tahoe, Express Van; GMC Acadia, Yukon, Savana Van; Cadillac CTS, DTS, Escalade; Buick Enclave, Lucerne, and more. Please verify your part number or contact us with your VIN to confirm fitment.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and instrument cluster warnings.
Is this BCM difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. Since we program it to your VIN, no dealer programming is needed. However, some models may require simple relearn procedures for systems like the airbags or brake sensor, which may require a professional scan tool.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship the module until we have this information to perform the programming.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be synchronized with the airbag’s Sensing and Diagnostic Module (SDM). A technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.
Will this fit other vehicles besides the 2011-2013 Caprice?
Yes, absolutely. This BCM fits a very wide range of GM vehicles from the mid-2000s to the early 2010s, including many popular Chevy, GMC, Cadillac, and Buick models. Please check the extensive compatibility list on this page and match your original part number.