Is Your GM Truck or Van Acting Possessed?
Are you dealing with a frustrating mystery of electrical problems in your Silverado, Sierra, Express, or Savana? One minute the radio works, the next it’s dead. Power windows have a mind of their own, the interior lights flicker, or the security light stays on, preventing your truck from starting. These aren’t just annoyances; they’re classic signs that the central command center for your vehicle’s electronics—the Body Control Module (BCM)—is failing.
In my 20+ years in the shop, I’ve seen these exact issues hundreds of times. A customer’s 2005 Silverado came in last week with a laundry list of bizarre electrical faults. The dash lights would randomly go out, and the power door locks were completely unresponsive. After confirming power and grounds were good, we pinpointed the culprit: the original BCM. Internal corrosion, often from moisture wicking down the wiring harness, had damaged the circuit board. Replacing it with a pre-programmed unit like this one had him back on the road in under an hour, with all functions restored.
The Simple, Dealer-Free Solution: A VIN-Programmed GM Body Control Module
Don’t waste time and money at a dealership for a lengthy diagnostic and programming session. We offer a direct, reliable solution. This Body Control Module is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. We load it with the latest GM software updates, ensuring it communicates perfectly with your vehicle’s other modules right out of the box. This eliminates the need for expensive scan tools or a trip to the dealer for programming.
Common Symptoms of a Failing BCM:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Radio or infotainment system turning on and off randomly.
- ✔ Erratic interior or exterior lighting (flickering, staying on, or not working at all).
- ✔ False security system alarms or a persistent anti-theft light.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Communication error codes with other vehicle modules.
Easy Installation Guide
Replacing the BCM is a straightforward job for a confident DIYer. While locations vary, the process is similar.
- Safety First: Always disconnect the negative battery terminal and wait a few minutes before starting.
- Locate the BCM: In most Silverado and Sierra pickups, it’s located under the driver’s side of the dashboard, near the steering column. For Express and Savana vans, it’s typically found behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
Critical Post-Installation Procedures
After installing your new BCM, a couple of final steps are required to ensure full system functionality. These procedures require a professional-grade diagnostic scan tool.
- Airbag System Reset: The ‘Setup SDM Primary Key in BCM’ procedure must be performed. This re-establishes communication between the new BCM and the airbag module (SDM), which will turn off the airbag warning light on your dash.
- Brake Pedal Position Sensor Relearn: On some models, the Brake Pedal Position (BPP) sensor may need to be recalibrated. This ensures the brake lights and stability control systems function correctly.
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689. Please verify your part number and use our detailed fitment list to confirm compatibility with your exact vehicle before ordering. Simply provide us with your VIN at checkout, and we’ll handle the rest.