Is Your GM Vehicle Acting Possessed?
Are you dealing with a frustrating mystery of flickering dash lights, power windows with a mind of their own, or a security system that randomly goes off? Before you start questioning your sanity, the problem is likely a failing Body Control Module (BCM). In my 20+ years as a technician, I’ve seen hundreds of these cases. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it creates a cascade of bizarre, seemingly unrelated electrical problems.
“A customer’s 2011 Chevy Traverse came in last week with the radio not turning off, intermittent door lock failure, and a dead battery every morning. They had already replaced the battery and alternator. After a quick diagnostic scan showed multiple communication errors pointing to one source, we confirmed it was the BCM. A failing internal relay was causing a parasitic draw. Replacing it with a properly programmed unit solved every single issue instantly.”
The Direct-Fit, Programmed Solution
Stop chasing electrical gremlins and get the definitive fix. This isn’t just a replacement part; it’s a complete solution. We take a genuine GM Body Control Module and professionally program it to your vehicle’s specific VIN before it ships. This means it arrives at your door loaded with the latest GM software updates, ready for installation. You get a part that communicates flawlessly with your vehicle’s other systems, just like the original did when it was new.
This BCM Is the Solution For:
- โ Erratic or non-functional power windows, door locks, and mirrors
- โ Interior or exterior lights that stay on or won’t turn on
- โ A security system that won’t arm or triggers falsely
- โ Unexplained parasitic battery drain leading to a dead battery
- โ “Service Theft System” or other warning messages on the dash
- โ Communication error codes (U-codes) stored in the system
Why Choose Our Pre-Programmed GM Body Control Module?
Buying a BCM from a dealer means paying for the part, then paying for several hours of labor for them to install and program it. Buying a used one from a junkyard is a gambleโit will have the wrong VIN and options, and it won’t work without costly dealer programming. Our service eliminates that hassle and expense. We handle the critical programming for you, making the physical replacement the main task for you or your mechanic.
Simple Installation Process
- Provide Your VIN: After purchase, simply send us your 17-digit VIN. We’ll handle the programming.
- Safety First: Before starting, disconnect the negative terminal from your vehicle’s battery.
- Locate and Replace: Find your old BCM (common locations include under the driver’s side dash, behind the glove box, or in the center console, depending on your model). Carefully disconnect the wiring harnesses and remove the old module. Install the new one in its place.
- Reconnect Power: Reconnect the negative battery terminal.
- Perform Final Setup: Follow the critical post-installation steps below to ensure full functionality.
CRITICAL: Post-Installation Procedures Required
To ensure safety systems and all features work correctly after installation, the following steps must be performed using a compatible, professional-grade diagnostic scan tool. This is not optional.
- Airbag System Sync: You must perform the ‘Setup SDM Primary Key in BCM’ procedure. This synchronizes the new BCM with the airbag system (Sensing and Diagnostic Module) and will clear the airbag warning light.
- Brake Sensor Calibration: On some models, a ‘Brake Pedal Position Sensor Calibration’ is required to ensure the brake lights and stability control systems function correctly.
This module is a direct replacement for part numbers: 15299986, 10382479, 15819552, 20815898, 22860591, 25892622, and many more. Please verify your part number or consult the detailed fitment list to confirm compatibility with your vehicle, such as the Chevrolet Impala, GMC Acadia, Cadillac DTS, or Chevy Express van.