Is Your GM Vehicle Experiencing Strange Electrical Problems?
If your Chevrolet, GMC, Cadillac, or other GM vehicle is suffering from flickering lights, malfunctioning power windows and locks, or a security system that acts up, a failing Body Control Module (BCM) is often the culprit. The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and seemingly unrelated issues. This replacement GM Body Control Module is the reliable, straightforward solution to restore your vehicle’s proper function.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Intermittent issues with the radio or infotainment system.
- ✔ Security system faults or the engine failing to start due to anti-theft issues.
- ✔ False warnings on the instrument cluster (e.g., ‘Service Airbag’ or ‘Service StabiliTrak’).
- ✔ Rapid battery drain while the vehicle is off.
Plug-and-Play Solution with VIN Programming
Don’t waste time and money at the dealership. This GM Body Control Module arrives at your door pre-programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. This critical step ensures that the module communicates correctly with your car’s other systems right out of the box. Simply provide your VIN at checkout, and we handle the complex programming for you, making installation as simple as swapping the part.
Post-Installation Information
While this module is designed for a direct fit, some vehicle systems may require a relearn procedure after installation. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure brake lights and traction control function as intended.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a GM Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls functions like power windows, locks, lights, wipers, the security system, and the instrument cluster, ensuring they all work together.
Do I need to program this BCM?
No. We program the module to your specific vehicle using the VIN you provide during checkout. It arrives ready for installation, saving you a trip to the dealership.
Is this part difficult to install?
The physical replacement is typically straightforward, involving disconnecting the battery and swapping the old module with the new one. However, the location varies by model (e.g., under the dash, behind the glove box). Some post-installation relearn procedures may require a professional scan tool.
What happens if the airbag light comes on after I install it?
This is a common occurrence. The new BCM needs to be electronically ‘introduced’ to the airbag system (SDM). A technician can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
Is there a core charge for my old part?
No, there is no core charge for this module. You can keep your original part.
How do I know if this BCM will fit my vehicle?
Please check the comprehensive list of compatible part numbers and the detailed fitment list on this page to confirm this module is correct for your specific year, make, and model.