Is your GM truck or van plagued by frustrating electrical issues? A faulty Body Control Module (BCM) is often the culprit. The BCM is the central computer for your vehicle’s body electronics, managing everything from power windows and locks to the security system and interior lighting. When it fails, it can cause a cascade of strange, seemingly unrelated problems that can be difficult to diagnose.
This is a direct-fit replacement BCM for a wide range of 2003-2007 GM vehicles, including the Sierra, Silverado, Express, and Savana. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck or van. This means it arrives at your door ready for installation, saving you hundreds of dollars in dealership programming fees and diagnostic time.
We had a 2006 Silverado 2500 in the shop that was driving the owner crazy. The horn would honk randomly, the dome light wouldn’t turn off, and the radio presets kept resetting. He’d already replaced the battery and checked all the fuses. After connecting our scan tool, we saw multiple communication errors pointing towards the BCM. Instead of a complex and expensive wiring chase, we installed a VIN-programmed BCM. The new module immediately resolved all the ghost-like electrical issues, and the truck was back to normal. It’s a perfect example of how one failing module can create a host of confusing symptoms.
Common Symptoms of a Failing BCM
- ✔ Erratic power window or door lock operation
- ✔ Interior or exterior lights not working or staying on
- ✔ The security or anti-theft light is illuminated, preventing the engine from starting
- ✔ Horn, wipers, or other accessories activating on their own
- ✔ Inconsistent or non-functional dashboard gauges
- ✔ Communication errors with other vehicle modules
- ✔ “Service Vehicle Soon” message on the dash
Your Plug-and-Play 2003-2007 Sierra Body Control Module Solution
Don’t let a faulty BCM keep your truck off the road. This module is a reliable and cost-effective solution to restore full functionality to your vehicle’s electronics. By providing us with your VIN, you ensure that the module you receive is correctly configured for all the options your vehicle came with from the factory. This module is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Installation & Post-Install Notes
Installation is typically straightforward, as the BCM is located under the steering column on most trucks or in the center dash on vans. After installation, some vehicles may require additional steps. If your airbag warning light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems. Additionally, a ‘Brake Pedal Position Relearn’ might be necessary to ensure proper brake light and traction control function. Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s 17-digit Vehicle Identification Number (VIN) contains all the specific information about its factory-installed options. We use the VIN to program the BCM with the correct software and settings, ensuring it works perfectly with your truck or van right out of the box.
Is this BCM difficult to install?
For most DIY mechanics, the physical installation is not difficult. The BCM is usually located under the driver’s side dashboard. However, please be aware that post-installation procedures, like an airbag system sync or brake pedal position relearn, may be required and necessitate a professional-grade scan tool.
What happens if my airbag light is on after I install this?
If the airbag light illuminates after installation, it means the new BCM needs to be electronically synced with the vehicle’s airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed by a repair shop or technician with a compatible diagnostic tool.
Will this fix my truck not starting?
If your no-start issue is caused by the factory anti-theft system (Passlock/VATS) being triggered by a faulty BCM, then yes, this programmed module will resolve the problem. It restores proper communication so the security system recognizes your key.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.