Restore Full Electronic Functionality to Your GM Vehicle
Is your vehicle plagued by strange electrical issues? Flickering lights, malfunctioning power windows, or a security system that acts up on its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, and when it fails, it can cause a wide range of frustrating and difficult-to-diagnose problems. This replacement BCM, part number 15880684, is the definitive solution to restore your vehicle’s systems to perfect working order.
Why Choose Our Pre-Programmed Caprice Body Control Module?
This isn’t just a part in a box. We provide a complete, plug-and-play solution. Before we ship your order, we use the Vehicle Identification Number (VIN) you provide to program the module with the latest GM software specific to your vehicle’s options. This critical step ensures a seamless installation process, eliminating the need for expensive dealership programming tools. You receive a part that is ready to be installed right out of the box, getting you back on the road faster.
Common Symptoms of a Failing BCM:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, etc.).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Vehicle security system faults or random alarm activation.
- ✔ Instrument cluster displaying false warnings, like “Service Airbag” or “Service Traction System.”
- ✔ Radio, infotainment, or climate control system malfunctions.
- ✔ Unexplained battery drain that kills the battery overnight.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
Installation and Post-Install Procedures
Installation is straightforward for a DIYer with basic tools. Once installed, the module will restore control over your vehicle’s body functions. However, in some vehicles, additional relearn procedures may be required to sync related systems. These can include:
- Airbag System Sync: If the airbag warning light is illuminated 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: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be necessary on certain models.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Compatibility
This BCM is a direct replacement for a wide range of GM part numbers. If your original module has any of the following numbers, this part 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. Please verify fitment for your specific make and model using the compatibility list.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories like power windows, locks, lights, wipers, the security system, and climate controls.
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping it to you. This makes the unit ready for installation upon arrival, saving you a trip to the dealership and their programming fees.
My original part number isn’t 15880684, will this still work?
Yes. This module is the updated replacement for a long list of older part numbers. Check the detailed list in the description to confirm your original part number is included.
What happens if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system. A technician with a professional diagnostic tool will need to perform a quick ‘Setup SDM Primary Key in BCM’ procedure to sync the systems.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us.