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 acts up on its own are often traced back to 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 replacement BCM, part number 15167329, is the definitive solution to restore full functionality and reliability to your vehicle.
This isn’t just a part; it’s a complete, ready-to-install solution. We take the guesswork and expensive dealership visits out of the equation by pre-programming the module to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and we’ll flash the BCM with the latest GM software updates, ensuring perfect compatibility and performance right out of the box. This service saves you time, money, and the headache of needing specialized scan tools for programming.
We had a 2005 Silverado 2500 in the shop that was driving its owner crazy. The battery would be dead every few mornings with no obvious cause. He had already replaced the battery twice and the alternator once. After connecting our diagnostic tool, we saw the BCM wasn’t allowing other modules to go to ‘sleep’ after the key was off, creating a parasitic draw. Installing a VIN-programmed BCM like this one solved the issue completely. It’s often the hidden culprit behind the most baffling electrical problems.
Common Failure Symptoms
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light stays on, or the alarm randomly triggers.
- ✔ The radio or instrument cluster displays behave strangely.
- ✔ A persistent parasitic battery drain that kills the battery overnight.
- ✔ Communication errors with other vehicle modules (DTC U-codes).
Why Choose Our 2003-2007 GM BCM?
This module is a direct replacement for a wide range of popular GM vehicles, including the Silverado, Sierra, Express, and Savana models from 2003 to 2007. It is a reliable and cost-effective alternative to a dealership part. By programming it to your VIN, we ensure it integrates seamlessly with your vehicle’s existing systems. This unit is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Post-Installation Procedures
While this 2003-2007 GM BCM is designed for straightforward installation, some vehicles may require a simple relearn procedure to sync all systems. These do not require a trip to the dealer but may need a capable 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 relearn may be needed to ensure correct brake light operation and traction control function.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, wipers, security system, and instrument cluster warnings.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is essential for the part to work correctly.
Is this a difficult part to install?
For most models listed, the BCM is located under the steering column or in the center dash area. Installation typically involves disconnecting the battery, removing a few trim panels, and swapping the module. It’s a manageable job for a DIYer with basic tools, but professional installation is always an option.
Will I need to have this programmed by a dealer?
No. The main benefit of our service is that we pre-program the module to your VIN before shipping it. This means it’s ready for installation upon arrival, saving you the cost and hassle of dealership programming.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.