Are you battling a storm of strange electrical problems in your GM truck or van? From flickering lights and dead power windows to a persistent ‘Security’ light or a vehicle that refuses to start, the culprit is often a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can create frustrating and difficult-to-diagnose issues. This replacement BCM, part number 15167329, is the definitive solution for restoring full functionality and peace of mind to your vehicle.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights would flicker randomly, the radio would shut off, and occasionally the truck just wouldn’t crank, flashing the ‘Security’ light. The owner had already replaced the battery and checked the grounds. After hooking up our scanner, we saw multiple communication loss codes with various modules. This pointed us directly to the BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our VIN-programmed units. The swap took less than an hour, and instantly, all the electrical gremlins were gone. It’s a common failure, and having a pre-programmed module is the fastest path to a reliable fix.
Common Symptoms of a Failing 2003-2007 GM Body Control Module
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) behaving erratically.
- ✔ The anti-theft or ‘Security’ light is illuminated on the dashboard, often causing a no-start condition.
- ✔ Inconsistent or non-functional instrument panel gauges.
- ✔ HVAC (A/C and heater) controls not responding correctly.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Communication errors with other vehicle modules when checked with a diagnostic scanner.
Plug & Play Solution with VIN Programming
The biggest hurdle in replacing a BCM has always been the need for expensive, dealer-specific programming. We eliminate that problem entirely. When you purchase this module, simply provide us with your vehicle’s 17-digit VIN. Our technicians will flash the module with the latest GM software specific to your truck or van. This ensures that it communicates perfectly with your vehicle’s existing components right out of the box, saving you hundreds of dollars in dealership fees and diagnostic time.
Post-Installation Procedures
While this module is programmed for your vehicle, some GM platforms may require simple relearn procedures after installation. These can include:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be needed. This syncs the new BCM with the airbag system and typically requires a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn might be necessary.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls and monitors the body-related electronic accessories in your vehicle. This includes power windows, locks, lights, wipers, the security system, and more.
Is this part truly plug-and-play?
Yes, this module comes pre-programmed to your vehicle’s VIN, making the installation process as simple as possible. In some cases, minor relearn procedures may be required post-installation, but the critical programming is done for you.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). You can typically find your VIN on the driver’s side dashboard (visible through the windshield) or on the sticker in the driver’s side door jamb.
What if my airbag light turns on after I install the BCM?
This can happen on some models. It means the new BCM needs to be electronically introduced to the airbag module (SDM). A technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure 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.
Which part numbers does this BCM replace?
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.