Is Your GM Truck or Van Plagued by Electrical Gremlins?
Are you dealing with flickering lights, power windows that have a mind of their own, a security system that won’t cooperate, or random warning lights on your dash? These frustrating and often unpredictable issues are common signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of bizarre problems. Don’t let a faulty module keep your reliable truck or van off the road. This pre-programmed BCM is the definitive solution to restore your vehicle’s electronic stability and function.
The Direct Solution: A VIN-Programmed 2003-2007 Sierra BCM
Replacing a BCM isn’t as simple as swapping out a fuse. Modern vehicles require the module to be programmed specifically to your vehicle’s Vehicle Identification Number (VIN) and its unique options. Skipping this step will result in a part that doesn’t work, or worse, creates new problems. We eliminate the hassle and expense of a dealership visit by programming this module for you before it ships. Simply provide us with your VIN after purchase, and we’ll flash the unit with the latest GM software updates, ensuring it’s ready for installation right out of the box. This is the most efficient way to get your 2003-2007 Sierra BCM replaced and your truck back to perfect working order.
From the Diagnostic Bay
We had a 2005 Silverado 2500 come in with the weirdest issue: the radio would turn on and off by itself, and the driver’s side power lock would cycle randomly while driving. The customer had already replaced the battery and checked all the fuses. A quick scan showed multiple communication loss codes with various modules, all pointing back to the BCM. A visual inspection of the original BCM revealed no obvious damage, but after installing one of our pre-programmed units, every single electrical gremlin vanished. It’s a textbook example of how a failing BCM can manifest as multiple, seemingly unrelated problems.
Symptoms of a Failing Body Control Module
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Erratic behavior from the dashboard gauges or warning lights (like the security light).
- ✔ HVAC (heating and air conditioning) controls not responding correctly.
- ✔ Remote keyless entry failing to lock or unlock the doors.
- ✔ Vehicle’s anti-theft system preventing the engine from starting.
- ✔ Communication errors with other vehicle modules when scanned with a diagnostic tool.
Simple Installation Process
Our goal is to make this repair as straightforward as possible. Once you receive your VIN-programmed module, the physical installation is typically simple. On most Sierra and Silverado pickups, the BCM is located under the steering column. For Express and Savana vans, it’s usually behind the center dash. While the physical swap is easy, please be aware of potential post-installation steps. Depending on your specific vehicle, a ‘Setup SDM Primary Key in BCM’ procedure may be needed if the airbag light comes on, or a ‘Brake Pedal Position Relearn’ might be required. These are standard procedures that can be performed by any qualified technician with a professional scan tool.
This module is a direct replacement for a wide range of part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Restore your vehicle’s functionality and peace of mind today.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and climate controls. It acts as a central hub for these electronic features.
Is this BCM truly plug-and-play?
Because we program it to your vehicle’s specific VIN before shipping, it is as close to plug-and-play as possible. It will have the correct software for your truck’s options. However, as noted, some vehicles may require additional relearn procedures for systems like the airbags or brake position sensor, which must be done with a pro-level scan tool after installation.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot program and ship your module until we receive this information. Please double-check your VIN for accuracy to ensure perfect programming.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module, which can be helpful for comparison or as a backup if needed.
What happens if the airbag light is on after installation?
If the airbag light illuminates, it means the new BCM needs to be electronically synced with the vehicle’s Sensing and Diagnostic Module (SDM). This is done via a ‘Setup SDM Primary Key in BCM’ procedure, which requires a professional diagnostic tool. This is a standard security and safety handshake between the two modules.
Will this fix my ‘Security’ light and no-start problem?
A faulty BCM is a very common cause of a persistent security light and the engine failing to start (Passlock/Passkey issues). By programming this module to your VIN, we ensure it communicates correctly with your vehicle’s ignition and anti-theft system, which typically resolves these issues.