Are you battling strange and frustrating electrical issues in your GM truck or van? The Body Control Module, or BCM, is the central command center for your vehicle’s body electronics. When it begins to fail, it can cause a cascade of problems that seem unrelated, from flickering lights to a no-start condition. This replacement Body Control Module is the definitive solution to restore full functionality and reliability to your vehicle.
This module is a direct replacement for a wide range of 2003-2007 GM vehicles, including the Silverado, Sierra, Express, Savana, and SSR. To ensure a seamless installation, we program the module to your vehicle’s specific VIN before it ships. This critical step loads the correct software and vehicle options, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest.
Expert Pro Tip: Before condemning your BCM, always perform a full battery and charging system test. A weak battery or poor ground connection can cause voltage drops that mimic the symptoms of a failing BCM. Check the main battery cables and the chassis ground straps to ensure they are clean, tight, and free of corrosion.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ Instrument cluster warning lights (like ABS, Airbag, or Security) illuminating randomly.
- ✔ The radio or climate control system behaving erratically.
- ✔ The vehicle’s security system preventing the engine from starting.
- ✔ A persistent parasitic battery drain that kills the battery overnight.
A Reliable Solution: The 2003-2007 GM Truck BCM
Don’t let a faulty module keep your truck off the road. Our replacement 2003-2007 GM Truck BCM is tested to ensure quality and performance. By having it pre-programmed to your VIN, you are receiving a component that is ready for installation right out of the box. While the installation is straightforward for most DIY mechanics, please be aware of potential post-installation procedures. Some vehicles may require an ‘Airbag System Sync’ or a ‘Brake Pedal Position Relearn’ if related warning lights appear. These procedures require a professional-grade diagnostic tool. This unit is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Best of all, there is no core charge, so you can keep your original module.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It acts as a central hub for these functions.
Do I need to have this module programmed?
No. We handle the programming for you before shipment. Simply provide us with your vehicle’s 17-digit VIN during or after checkout, and the module will arrive ready to be installed.
Is this part difficult to install?
The BCM is typically located under the steering column or in the center dash area. Installation involves disconnecting the battery, removing a few trim panels, and swapping the module. It is a manageable job for someone with basic automotive repair experience.
What happens if my airbag light is on after installation?
If the airbag light illuminates, it means the new BCM needs to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure using a professional diagnostic tool.
Will this fix my intermittent electrical problems?
Yes, a failing BCM is one of the most common causes of widespread, intermittent electrical issues in these GM vehicles. Replacing it with this pre-programmed unit is the most effective way to solve those problems.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old BCM back to us.