Tired of Electrical Gremlins in Your GM Truck or Van?

Is your Silverado, Sierra, Express, or Savana acting possessed? Flickering lights, power windows with a mind of their own, a security system that won’t cooperate, or a battery that’s always dead are classic signs that the brain of your vehicle’s body electronics—the Body Control Module (BCM)—is failing. In my 20+ years as a technician, I’ve seen these exact issues hundreds of times. Drivers spend a fortune replacing switches, relays, and even batteries, only to find the core problem was a faulty BCM all along.

The Direct Solution: A VIN-Programmed BCM

Forget the hassle and expense of a dealership visit. This BCM is the straightforward, reliable fix you need. We take a high-quality replacement module and flash it with the latest official GM software, specifically matched to your vehicle’s VIN. This means it arrives at your door ready to install, pre-configured to communicate perfectly with your truck’s existing systems. It’s the closest you can get to a true plug-and-play repair for a complex electronic part.

Is Your Vehicle Showing These Symptoms?

• ✔ Intermittent or non-working power windows and door locks.
• ✔ Interior dome lights or exterior lights that stay on or won’t turn on.
• ✔ The security or anti-theft system acting up, preventing the vehicle from starting.
• ✔ Erratic instrument cluster gauges or warning lights.
• ✔ A persistent battery drain that you can’t trace to any other source.

“A customer’s 2005 Silverado came in last week with the dome lights staying on and the power windows acting possessed. He’d already replaced the window switch and a dozen fuses. A quick scan showed communication loss with the BCM. A new, properly programmed module like this one had him fixed up in under an hour.”

Easy Installation Guide for your Programmed GM BCM

Replacing the BCM is a job most DIYers can handle with basic tools. The location varies slightly between trucks (under the steering column) and vans (center dash), but the process is similar.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
2. Locate the BCM: On Silverado/Sierra models, it’s typically mounted to a bracket under the driver’s side of the dashboard, near the steering column. On Express/Savana vans, it’s behind the center dash trim.
3. Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so don’t force them. Once disconnected, unbolt the old BCM from its mounting bracket.
4. Expert Pro Tip: Before plugging in your new BCM, take a moment to inspect the connector terminals on the vehicle’s wiring harness. These trucks and vans often see heavy use, and corrosion or pushed-out pins in the connectors are a common source of problems. A quick spray with electronics cleaner can ensure a perfect connection.
5. Install the New Module: Bolt the new BCM into place and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock.
6. Reconnect Battery: Reattach the negative battery terminal.

Critical Final System Checks (Required)

Because this Programmed GM BCM is the central hub for many systems, a couple of final synchronization steps are required after installation to ensure full functionality and safety. These procedures require a bi-directional scan tool (common in most independent repair shops).

• Airbag System (SRS): To clear the airbag warning light, you or your mechanic must perform the ‘Setup SDM Primary Key in BCM’ procedure. This re-establishes the security handshake between the new BCM and the airbag’s Sensing and Diagnostic Module (SDM).
• Brake System: Some vehicles may require a ‘Brake Pedal Position Sensor Calibration’ after BCM replacement. This ensures the brake lights and stability control systems receive accurate data from the pedal.

These steps are a standard part of replacing a modern vehicle computer and ensure your repair is done correctly and safely. This module is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Order today and restore your vehicle’s proper function!