Restore Your Truck’s Electrical Functions with a VIN-Programmed BCM
Is your GMC Sierra, Silverado, or Express van acting possessed? Flickering lights, malfunctioning power windows, and random security alerts are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it goes bad, it can cause a host of frustrating and unpredictable problems. Don’t let a faulty module sideline your truck. This replacement BCM is the reliable, straightforward solution to get your vehicle’s features working correctly again.
From the Diagnostic Bay
We had a 2006 Silverado 2500 in the shop that was driving its owner crazy. The dome light would randomly turn on while driving, the power locks would cycle on their own, and the battery would be dead every few mornings. The owner had already replaced the battery and checked the alternator. After tracing the parasitic draw and running network diagnostics, we pinpointed the internal failure of the BCM. Instead of a costly trip to the dealer for a new module and programming fees, we installed one of our VIN-programmed units. The electrical gremlins vanished instantly, and the truck was back to being the reliable workhorse it was meant to be. This is a problem we see often, and a correctly programmed BCM is the definitive fix.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, and mirrors.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on or not turning on at all.
- ✔ Erratic behavior from the dashboard gauges or instrument cluster.
- ✔ The security system engaging randomly or preventing the vehicle from starting.
- ✔ Unexplained parasitic battery drain that kills your battery overnight.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ HVAC (heater and A/C) controls not responding correctly.
The Superior Solution: A Pre-Programmed 2003-2007 Sierra 2500 BCM
Replacing a BCM isn’t just about swapping hardware. A new module must be programmed with your vehicle’s specific VIN and factory options to function. Bypassing this step will result in a vehicle that won’t start or has even more electrical issues. We handle this critical step for you. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software specific to your truck. This makes the installation process as close to plug-and-play as possible, saving you a trip to the dealership and hundreds of dollars in programming fees.
This module is a direct replacement for a wide range of GM trucks and vans from 2003 to 2007, and is compatible with multiple part numbers including 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Installation and Post-Install Notes
The BCM is typically located under the steering column on pickup models and in the center dash area on vans. While the physical swap is straightforward for a DIY mechanic, please be aware of potential post-installation procedures. In some cases, an airbag light may illuminate, which requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. Additionally, a ‘Brake Pedal Position Relearn’ may be necessary. These are standard GM procedures when replacing a BCM and ensure all related systems communicate correctly.
Frequently Asked Questions
Why do you need my VIN number?
Your vehicle’s 17-digit VIN (Vehicle Identification Number) contains critical information about its factory-installed options. We use the VIN to load the exact software and calibrations from GM’s database onto the BCM, ensuring it works perfectly with your specific truck or van’s features right out of the box.
Is this a difficult part to install myself?
For someone with moderate mechanical experience, the physical installation is not overly complex. It involves removing lower dash panels to access the module, disconnecting electrical connectors, and swapping the unit. The main challenge is the potential need for post-install electronic procedures, like an airbag system sync, which may require a professional-grade scan tool.
Will this fix my intermittent electrical problems?
This programmed BCM is the direct solution for issues caused by a faulty module. If your vehicle exhibits multiple symptoms from the list above—like erratic lights, locks, and windows—a failing BCM is the most likely culprit, and this part is designed to be the definitive fix.
What if my airbag light is on after installation?
This is a known possibility. The BCM and the Airbag Control Module (SDM) are linked. If the light comes on, it simply means they need to be re-synchronized. A qualified technician with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old BCM back?
No. This purchase has no core charge. You can keep your original module, which saves you the time, cost, and hassle of shipping a part back.