Restore Full Electrical Function to Your GM Vehicle
Is your Chevrolet, GMC, Buick, or Cadillac plagued by strange and unpredictable electrical problems? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often symptoms of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating issues. This pre-programmed GM Body Control Module is the definitive solution, designed to restore your vehicle’s functionality and get you back on the road with confidence.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair process by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures that the BCM is loaded with the latest GM software and is perfectly matched to the options and features of your exact car, truck, or SUV. This eliminates the need for expensive dealership programming and specialized tools, making the installation process as straightforward as possible.
From the Diagnostic Bay
We recently had a 2015 Chevy Traverse in the shop with a list of bizarre symptoms. The radio would stay on after the key was removed, the dome lights would flicker randomly, and the power liftgate only worked intermittently. The owner had already replaced the battery, assuming it was a power supply issue. A quick scan with a professional tool revealed multiple communication error codes all pointing back to a faulty BCM. Instead of a complex and costly diagnostic process at a dealership, we installed one of these VIN-programmed modules. In under an hour, every single electrical gremlin was gone. It’s a common failure, and this is the most efficient fix.
Symptoms of a Failing GM Body Control Module
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning security system or keyless entry.
- ✔ Warning lights on the dashboard, such as ‘Service Theft System’ or ‘Service Airbag’.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Wipers operating on their own or not responding to the switch.
- ✔ In some cases, a no-start condition due to security system communication failure.
Why Choose Our Pre-Programmed GM Body Control Module?
This module is a direct replacement for OEM part numbers 22820314 and 22915542. By providing us with your VIN during checkout, you ensure a part that is truly plug-and-play. Our technicians handle the complex programming, saving you hundreds of dollars in dealership fees and hours of vehicle downtime. The module is flashed with the newest stable software release from GM, which can often resolve issues that were present even in the original factory programming.
Installation and Post-Install Procedures
Installation is typically straightforward, involving disconnecting the battery and swapping the old module with the new one. However, due to the complexity of modern vehicle systems, a couple of additional steps may be required after the new BCM is installed:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM) and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary. This ensures the brake lights and traction control system function correctly.
Please Note: While many installations require no additional steps, it’s always recommended to consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module 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 interior accessories.
How do I know if my BCM is failing?
Common signs include multiple, unrelated electrical issues happening at once. For example, your power locks stop working at the same time your interior lights start flickering. A diagnostic scan showing communication codes with the BCM is the most definitive way to know.
Is this BCM difficult to install?
The physical replacement is generally simple for someone with basic mechanical skills, often located under the dashboard. Since we pre-program it, you avoid the most difficult part of the job. However, some vehicles may require post-installation relearn procedures with a scan tool.
Why do you need my VIN?
Your vehicle’s VIN is essential for us to load the correct software and settings for your specific model, year, and options package. This makes the module plug-and-play and ensures all features work correctly.
What happens if the airbag light comes on after installation?
This means the new BCM needs to be electronically ‘introduced’ to the airbag control module. A technician with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Will I need to take my car to the dealer after installing this?
Our VIN programming is designed to eliminate the need for a dealer visit. In the rare case that a post-install procedure like an airbag sync is needed, a well-equipped independent shop can perform the task.