Are you battling frustrating electrical gremlins in your GM truck or van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that has a mind of its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and intermittent problems. This pre-programmed Body Control Module is the definitive solution, designed to restore full functionality to your vehicle without a costly trip to the dealership.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-working power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft system activates randomly, preventing the vehicle from starting.
- ✔ Dashboard gauges behaving erratically or not working at all.
- ✔ The horn honking unexpectedly or the key fob not responding.
- ✔ Diagnostic Trouble Codes (DTCs) indicating a loss of communication with the BCM.
- ✔ Wipers or other accessories turning on by themselves.
The Direct Solution for Your Silverado Sierra BCM Replacement
Don’t let a faulty BCM keep your truck off the road or in a state of electrical chaos. Our replacement BCM, compatible with part number 15747545 and others, is the most efficient solution available. We take the hassle out of the repair by pre-programming the module to your vehicle’s specific VIN before it ships. This means it arrives ready for installation, loaded with the latest software updates from GM. This process ensures compatibility and proper function of all your vehicle’s options, effectively making this a plug-and-play repair.
Simple Ordering Process: After you complete your purchase, simply provide us with your vehicle’s VIN. Our technicians will handle the programming, ensuring the module you receive is a perfect match for your truck or van. There is no core charge, so you can keep your original module.
Post-Installation Notes: In some cases, additional vehicle-specific relearn procedures may be necessary after installation. For example, if the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position relearn might also be required for proper brake light and traction control operation. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide variety of non-engine-related functions, such as power windows, locks, lights, wipers, security system, and dashboard gauges.
Why do I need to provide my VIN?
Providing your VIN is crucial. We use it to program the BCM with your vehicle’s specific software and factory options. This ensures the module works correctly right out of the box and eliminates the need for expensive dealer programming.
Is this part difficult to install?
For someone with moderate mechanical skill, the physical replacement is straightforward. The BCM is typically located under the steering column or in the center dash area. The main benefit of our service is that the complex software programming is already done for you.
What if my airbag light is on after installation?
If the airbag light appears, it means the new BCM needs to be synced with the airbag system’s SDM module. This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Will this BCM fit my vehicle?
This module fits a wide range of 2003-2007 GM trucks and vans, including the Silverado, Sierra, Express, Savana, and SSR. It is a direct replacement for part numbers 15747545, 15167329, 15194169, and others listed in the fitment data.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.