Restore Your Truck’s Electrical System with a Plug-and-Play Solution
Are you chasing electrical gremlins in your GM truck or van? Flickering lights, unresponsive power windows, a security light that won’t turn off, or gauges that have a mind of their own are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can make your dependable truck feel unreliable and frustrating. This isn’t just an inconvenience; it can affect everything from your interior lights to your security system. This replacement BCM is the definitive, hassle-free fix, arriving at your door pre-programmed for your specific vehicle.
From the Diagnostic Bay: The Case of the Haunted Silverado
I once had a 2005 Silverado 1500 in my shop that was driving its owner crazy. The radio would turn on and off, the driver’s side power window worked intermittently, and the dome light would flicker randomly. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a series of communication codes (U-codes) pointing to a network issue. Instead of a complex wiring problem, my experience pointed straight to the BCM. These modules are notorious for internal solder joint failures over time, causing these exact kinds of bizarre, unrelated symptoms. We installed a VIN-programmed 2003-2007 Silverado BCM, and in under an hour, every single issue was resolved. The truck went from haunted to healthy.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors not working or acting erratically.
- ✔ Interior or exterior lights (headlights, tail lights, dome lights) flickering or failing to operate.
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ Horn, windshield wipers, or radio functioning intermittently or not at all.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140 (Lost Communication with BCM).
- ✔ Inconsistent or non-functional instrument panel gauges.
Your Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- ✔ Locate the BCM: On most Silverado and Sierra pickups, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s typically found behind the center dash panel.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove any bolts or clips holding the module in place and take it out.
- ✔ Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely re-attach the electrical connectors. You should hear a click as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all related functions: windows, locks, lights, wipers, etc.
- ✔ Perform Relearn Procedures (If Necessary): As noted below, some vehicles may require a ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ with a capable scan tool if specific warning lights appear.
The Advantage of a VIN-Programmed Module
Skip the expensive dealership visit and the hassle of programming. We handle the critical software step for you. Simply provide your vehicle’s 17-digit VIN during checkout, and our technicians will flash this 2003-2007 Silverado BCM with the latest GM-certified software for your exact model and options. This ensures that all features your truck was built with will work correctly right out of the box. Plus, with our no-core-charge policy, you can keep your original part without any extra fees or return shipping.
Important Post-Installation Information
While this module is designed for a simple installation, some GM systems may require a final handshake after the new BCM is in place. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed using a professional-grade diagnostic tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step of the process.
Guaranteed Fitment for Your GM Truck or Van
This BCM is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is verified to fit the following vehicles (excluding certain options like Crew Cab as noted):
- 2003-2006 Chevrolet Silverado 1500/2500/3500 (exc. Crew Cab)
- 2007 Chevrolet Silverado 1500/2500/3500 Classic (exc. Crew Cab)
- 2003-2006 GMC Sierra 1500/2500/3500 (exc. Crew Cab)
- 2007 GMC Sierra 1500/2500/3500 Classic (exc. Crew Cab)
- 2003-2007 Chevrolet Express 1500/2500/3500 Van
- 2003-2007 GMC Savana 1500/2500/3500 Van
- 2003-2006 Chevrolet SSR
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the BCM with the exact software and settings for your vehicle’s specific options (like power seats, keyless entry, etc.). This makes the installation plug-and-play and avoids a costly trip to the dealership for programming.
Is this a difficult part to install myself?
For someone with basic mechanical skills, this is a very manageable job. The BCM is typically held in by a few bolts or clips and has several plug-in connectors. The main challenge is accessing it under the dash. No special tools are needed for the physical swap.
What happens if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag module (SDM). A mechanic with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is there a core charge for this part?
No. We do not require you to send your old BCM back. There is no core charge or any additional fee.
Will this 2003-2007 Silverado BCM fix my no-start problem?
It can. A common failure mode for the BCM is a faulty security system circuit, which will disable the starter. If your ‘Security’ light is on and the truck won’t crank, a bad BCM is a very likely cause.