Restore Full Functionality to Your GM Truck or Van

Are you chasing electrical gremlins in your 2003-2007 GM vehicle? Intermittent power windows, flickering dash lights, or a security system that randomly prevents your truck from starting are classic signs of a failing Body Control Module (BCM). As a technician with over 20 years of experience, I’ve seen how a single faulty BCM can mimic a dozen different problems, leading to frustrating and expensive diagnostic dead ends. This isn’t just a part; it’s the central command for your vehicle’s body electronics, and when it fails, it can make your reliable truck feel unpredictable.

This is your direct, hassle-free solution. We provide a fully tested, reliable 2003 – 2007 GM BCM that comes pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). Simply provide your VIN at checkout, and our experts will flash the module with the latest GM-certified software. This ensures all your factory options are recognized and work correctly right out of the box, saving you a costly trip to the dealership for programming.

Common Signs of a Failing BCM

If your vehicle is experiencing these issues, a faulty Body Control Module is the most likely cause. Don’t replace individual components until you’ve checked the BCM.

• ✔ Erratic or non-functional power windows, door locks, or mirrors.
• ✔ Interior dome lights or dashboard lights staying on or not working at all.
• ✔ The security or anti-theft light is illuminated, potentially causing a no-start condition.
• ✔ Horn honking unexpectedly or not working when pressed.
• ✔ Wipers activating on their own or not responding to the switch.
• ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’).
• ✔ Communication-related Diagnostic Trouble Codes (DTCs), often in the U-code series (e.g., U0140, U0155).

A Straightforward Guide to Installation

Replacing your BCM is a manageable job for a DIYer with basic tools. The key is our pre-programming service, which eliminates the most difficult step.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to allow all systems to power down.
2. 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 behind the center dash panel.
3. Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
4. Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
5. Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, wipers, etc.—to confirm the repair.
6. Perform Post-Install Procedures (If Needed): In some cases, you may need to perform a relearn procedure. If the airbag light is on, an ‘Airbag System Sync’ is required. A ‘Brake Pedal Position Relearn’ may also be necessary for proper brake light function. These procedures require a compatible high-end scan tool.

Verified Vehicle Compatibility

This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models and options:

Important Note: This part is specifically for models without Crew Cab (for trucks) or with the standard trim (for vans). Please verify your vehicle’s options before ordering. And the best part? There is no core charge. You don’t have to worry about the cost or hassle of sending your old part back.