Is Your GM Truck or Van Acting Possessed?
If you’re dealing with a frustrating mix of electrical gremlins—power windows that won’t budge, door locks with a mind of their own, flickering interior lights, or a security system that randomly immobilizes your vehicle—the culprit is almost always a failing Body Control Module (BCM). It’s the central command center for your vehicle’s body electronics, and when it goes, it can make your reliable truck or van feel completely unpredictable.
From the Shop Floor: “A customer’s 2005 Silverado 2500 came in last week with a dead passenger window, a dome light that wouldn’t turn off, and the radio staying on after the key was out. He’d already replaced the window switch and checked fuses. We immediately suspected the BCM. Over the years, I’ve seen hundreds of these failures, often accelerated by moisture from a leaky windshield seal or a cowl drain that’s clogged with leaves. The corrosion on the circuit board is a dead giveaway.”
The Direct-Fit, No-Hassle Solution
Forget expensive dealership visits and the headache of finding a shop that can program a new module. We take the guesswork and extra cost out of the equation. This is a direct replacement GM Body Control Module that arrives at your door ready to install. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest GM software specific to your exact build. This ensures all your factory options work correctly from the moment you plug it in.
Symptoms of a Failing GM Body Control Module:
- ✔ Inoperative or erratic power windows, mirrors, and door locks.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft system preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working.
- ✔ Wipers behaving erratically or not parking correctly.
- ✔ False warnings on the driver information center (DIC).
Simple Installation Guide
Installing your new BCM is a straightforward job you can do with basic hand tools. Location varies slightly by model:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On Silverado and Sierra pickups, it’s typically found under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s located in the center of the dash, often accessible by removing a trim panel.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly until they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
Important Final Steps After Installation
To finalize the repair and ensure all systems are communicating correctly, a couple of procedures are required. These steps are critical for safety and full functionality and require a professional-grade scan tool.
- Airbag System Reset: The airbag light will likely be on. You must perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the BCM with the airbag module (SDM) and clear the light.
- Brake Pedal Position Sensor: Some vehicles may require a ‘Brake Pedal Position Sensor Calibration’ to ensure the brake lights and stability control systems function correctly.
Guaranteed Compatibility
This module is a direct replacement for the following part numbers:
15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689
It is guaranteed to fit the following vehicles (please verify your specific options):
EXPRESS/SAVANA 1500/2500/3500 (2003-2007) – Body Control (BCM); (center dash), check for ‘commercial tradesman package’ option.
SSR (2003-2006) – Body Control (BCM)