Is Your GM Truck or Van Experiencing Strange Electrical Problems?
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 frustrating and seemingly unrelated issues. From flickering lights to a vehicle that won’t start, a faulty BCM can be difficult to diagnose. This replacement GM Body Control Module is the definitive solution for restoring your vehicle’s electronic systems to perfect working order. It arrives pre-programmed to your vehicle’s specific VIN, ensuring a straightforward installation process and eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop with a classic parasitic battery drain. The owner had already replaced the battery twice and the alternator once, but the truck would be dead every morning. After checking all the usual suspects, we hooked up a scanner and monitored the network activity with the key off. The BCM was refusing to go to sleep, keeping multiple circuits active all night long. Swapping in a VIN-programmed BCM like this one solved the problem instantly. It’s a common failure point that is often misdiagnosed as a bad battery.
Common Symptoms of a Failing GM Body Control Module
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Headlights, taillights, or interior lights behaving erratically (staying on, not turning on, or flickering).
- ✔ The security or anti-theft system (Passlock/VATS) preventing the engine from starting.
- ✔ Inaccurate or non-functional gauges on the instrument cluster.
- ✔ The radio or climate control system not functioning correctly.
- ✔ Unexplained battery drain that leaves you with a dead battery.
A True Plug-and-Play Solution
Replacing a BCM used to be a job reserved for the dealership due to complex programming requirements. Our service changes that. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM-certified software specific to your truck or van. This ensures all factory-installed options work as intended right out of the box. This module is a direct replacement for a wide range of part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Post-Installation Steps
While this module is pre-programmed for your vehicle, some GM security and safety systems may require a simple relearn procedure after installation to sync with the new BCM. These may include:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to satisfy the traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a BCM do on my Silverado, Sierra, or Express van?
The BCM acts as the brain for your vehicle’s body accessories. It controls functions like your power windows, locks, interior and exterior lighting, security system, and even communicates with the radio and climate controls.
Is this module truly plug-and-play?
Yes, it comes programmed to your VIN. In most cases, you can install it and the vehicle will start and run. However, as noted, some vehicles may require additional relearn procedures for the airbag or brake systems to clear warning lights and ensure full functionality.
How do I provide my VIN?
After you complete your purchase, we will contact you for your VIN, or you will find a dedicated field during the checkout process to enter it. We cannot ship the module until we have programmed it with your VIN.
What happens if the airbag light is on after I install it?
This is normal on some vehicles. It means the new BCM needs to be electronically introduced to the airbag’s Sensing and Diagnostic Module (SDM). A repair shop with a bi-directional 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. This product has no core charge, so you can keep your original module.