Are you battling bizarre electrical issues in your GM truck or van? A failing Body Control Module, or BCM, is often the culprit behind a host of frustrating problems. The BCM acts as the central command center for your vehicle’s body electronics, managing everything from power windows and locks to the security system and interior lighting. When it starts to fail, it can make your vehicle feel unpredictable and unreliable. This replacement module is the definitive solution to restore full functionality and peace of mind.
This is a direct-fit replacement for a wide range of GM vehicles, including the Silverado, Sierra, Express, Savana, and SSR models from 2003 to 2007. To make your repair as simple as possible, we program the module to your vehicle’s specific VIN before it ships. This means it arrives ready for installation, eliminating the need for an expensive trip to the dealership for programming. Just provide your VIN at checkout, and we handle the rest.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, mirrors, or door locks.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security or anti-theft system light is illuminated or flashing.
- ✔ Wipers or horn activating unexpectedly.
- ✔ Dashboard warning lights appearing without a clear cause.
- ✔ No communication with the BCM when using a diagnostic scan tool.
Your Reliable 2003-2007 GM BCM Solution
This module is a reliable and cost-effective way to solve your vehicle’s electrical issues. It is compatible with multiple original part numbers, including 15198115, 15167329, 15194169, 15747545, and more. With our VIN programming service, you get a part that is configured for your truck’s specific options right out of the box. Plus, there is no core charge, so you can keep your original module.
Post-Installation Procedures
After installing the BCM, some vehicles may require additional steps to ensure all systems are synchronized. These can typically be performed with a capable bi-directional scan tool.
- Airbag System Sync: If the airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure correct brake light operation and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls and monitors the body-related electronic accessories in your vehicle. This includes power windows, locks, lights, wipers, security system, and more.
Is this module difficult to install?
The physical installation is typically straightforward, involving removing a few dash panels to access the module (usually under the steering column or in the center dash) and swapping connectors. Since we pre-program it, you avoid the complex programming steps required at a dealership.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will use this to flash the module with the correct software and vehicle options before we ship it.
Do I need to send my old BCM back?
No. This part has no core charge, so you are not required to return your original module.
What if my airbag light is on after I install this?
This can happen. It means the new BCM needs to be electronically introduced to the airbag system. A technician with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.