Is Your GM Vehicle Acting Possessed?
Are you dealing with flickering dashboard lights, power windows with a mind of their own, or random warning messages like “Service StabiliTrak” or “Service Airbag”? These frustrating and unpredictable electrical issues often point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of confusing problems. Don’t let electrical gremlins ruin your driving experience. This direct-replacement BCM is the reliable, straightforward solution you need.
Symptoms of a Failing Body Control Module
- ✔ Intermittent or non-working power windows, door locks, and mirrors.
- ✔ Erratic interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning keyless entry or security system alarms.
- ✔ False warning lights on the instrument cluster (e.g., airbag, ABS, traction control).
- ✔ Climate control system operating incorrectly.
- ✔ Radio or infotainment system randomly shutting down or acting up.
- ✔ Problems with the vehicle starting due to security system communication failure.
The Plug-and-Play Solution: A Programmed GM Body Control Module
Replacing a BCM used to mean a mandatory trip to the dealership for expensive programming. We’ve eliminated that step. When you order from us, you provide your vehicle’s VIN, and we program the module for you before it ships. This Programmed GM Body Control Module arrives loaded with the latest GM software updates specific to your car, truck, or SUV. This ensures seamless integration and restores your vehicle’s functions to factory specifications. There is no core charge, so you can keep your old part.
Installation and Required Procedures
Installation is typically a direct swap, but depending on your specific model, a couple of simple relearn procedures may be necessary after the new module is installed. These are standard procedures for ensuring all related vehicle systems communicate correctly with the new BCM.
- 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: Some models may require a brake pedal position sensor recalibration to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security systems, and climate control.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once. Flickering lights, malfunctioning locks or windows, and false warning messages are all strong indicators. A professional diagnostic scan can confirm communication faults with the BCM.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This makes the installation process plug-and-play and avoids a trip to the dealer.
Is this part difficult to install?
For most DIYers with basic tools, swapping the BCM is straightforward. It usually involves removing a few dash panels to access the module, unplugging the electrical connectors, and swapping the unit. However, some post-installation relearn procedures may require a professional scan tool.
What if my airbag light comes on after I install it?
This is a common security measure. The new BCM needs to be electronically ‘introduced’ to the airbag system (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.