Are you battling frustrating electrical problems in your GM truck or van? Issues like malfunctioning power windows and locks, erratic dashboard lights, or a security system that won’t cooperate are common signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body accessories, and when it fails, it can cause a wide range of confusing symptoms. This VIN-programmed BCM is the definitive solution for your 2003-2007 Silverado, Sierra, Express, or Savana, restoring full functionality and peace of mind.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The radio would turn on by itself, the dome light would flicker, and he had a persistent parasitic battery drain that left him stranded twice. He had already replaced the battery and alternator. After checking the wiring, we isolated the issue to the BCM. It was internally shorting, causing the phantom power draws. Installing a VIN-programmed BCM like this one solved all three problems instantly. It’s often the single root cause for multiple, seemingly unrelated electrical gremlins.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors not working or operating intermittently.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ The security system or keyless entry failing to work correctly.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Warning lights (like Airbag or ABS) appearing on the dash without a clear cause.
- ✔ Unexplained battery drain that kills the battery overnight.
The Simple, Reliable Solution for Your 2003-2007 Silverado BCM
Don’t waste time and money at the dealership. We make the process simple. This replacement Body Control Module is a direct-fit for part number 15167329 and other compatible numbers listed below. The critical difference is our service: we program the module to your vehicle’s specific VIN before it ships. This ensures it communicates perfectly with your truck’s existing systems right out of the box, loaded with the latest software updates from GM. This eliminates the need for expensive dealership programming tools and appointments.
Installation and Post-Install Steps
Physical installation is straightforward, typically involving removing the lower dash panel to access the module under the steering column (on trucks) or in the center dash (on vans). After installing your new 2003-2007 Silverado BCM, some vehicles may require a couple of simple relearn procedures. These are standard processes that any qualified technician can perform with a professional scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
This BCM is a compatible replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls and monitors many of your vehicle’s non-engine related functions, such as power windows, locks, lights, security system, wipers, and more. It’s the command center for passenger comfort and convenience electronics.
Is this BCM ready to install when I receive it?
Yes! This BCM is fully programmed to your vehicle’s VIN before we ship it. This ensures it works with the specific options your vehicle was built with, making installation much simpler than a non-programmed unit.
How do I provide my VIN number?
After you complete your purchase, please send us a message with your 17-digit VIN, or add it as a note to your order during checkout. We cannot ship your part until we receive the VIN.
What if the airbag light is on after I install the BCM?
This is a normal possibility. The new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.