Is Your Vehicle Experiencing Strange Electrical Issues?
The Body Control Module, or BCM, is the central nervous system for your vehicle’s electronic accessories. It manages everything from your power windows and locks to your interior lights, security system, and wipers. When the BCM starts to fail, it can cause a cascade of frustrating and seemingly unrelated problems, making your vehicle unreliable and difficult to operate. If you’re dealing with these issues, a failing BCM is a likely culprit.
Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system light is on, or the vehicle won’t start due to a perceived theft attempt.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Windshield wipers activating on their own or not responding to the switch.
- ✔ Inaccurate or malfunctioning gauges on the instrument cluster.
- ✔ “Service Electrical System” or similar warnings on the dash.
The Simple Solution: A VIN-Programmed GM Body Control Module
Don’t let a faulty BCM keep you off the road. This replacement Programmed GM Body Control Module is the most efficient and reliable solution to restore your vehicle’s full functionality. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN before it ships. This ensures compatibility and streamlines the installation process, eliminating the need for expensive dealership programming tools. Simply provide your VIN after purchase, and we’ll handle the rest.
This module is a direct replacement for a wide range of GM vehicles, including popular models like the Chevy Impala, GMC Acadia, Cadillac DTS, and Chevy Express van. It is compatible with all part numbers listed in the vehicle fitment data, ensuring you get the correct part for your repair.
Installation and Post-Install Steps
While this Programmed GM Body Control Module is designed for a straightforward installation, some vehicles may require additional steps to ensure all systems communicate correctly. Please be aware of the following potential procedures:
- 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: On some models, a brake pedal position sensor relearn may be necessary to ensure correct operation of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your car that controls and monitors various electronic body accessories. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a hub for these functions.
How does the VIN programming service work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. We use this number to load the latest GM-certified software and your vehicle’s specific configuration onto the module before we ship it to you.
Is this a difficult part to install?
For someone with moderate DIY experience, the physical replacement is typically straightforward. The BCM is usually located under the dashboard. Since it comes pre-programmed, no special tools are needed for programming, though some vehicles may require the simple relearn procedures mentioned above.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Will this BCM fit my vehicle?
This module fits a very wide range of GM cars, trucks, and vans. Please review the detailed fitment list and cross-reference your original part number with the extensive list of compatible numbers provided on this page to ensure a perfect match.
What if the airbag light turns on after I install it?
This can happen on certain models. It means the new BCM needs to be electronically introduced to the airbag system. A qualified mechanic with a high-end diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.