Programmed GM Body Control Module 15299986 | VIN Flashed for Easy Install

Tired of Your GM’s Mysterious Electrical Gremlins?

As a technician with over two decades of experience, I’ve seen it all. Flickering dashboard lights, power windows with a mind of their own, a security system that randomly immobilizes the vehicle—these aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and security features. When it starts to go, it can cause widespread, confusing issues that are often misdiagnosed, costing you time and money.

This isn’t just another part. This is a complete, ready-to-install solution. We take a reliable replacement BCM, load it with the latest official GM software, and program it specifically to your vehicle’s VIN before it ships. This means it arrives at your door ready to be installed, eliminating the need for an expensive trip to the dealership for programming. You get a reliable fix that restores your vehicle’s functions correctly the first time.

A Technician’s Notebook: The Case of the Haunted Express Van

I once had a 2009 Chevy Express 3500 in my bay that was driving the owner crazy. The dome lights would stay on, the radio presets would vanish, and occasionally, the van wouldn’t start. He’d already replaced the battery and checked the alternator. After connecting my scan tool, I saw a slew of communication errors (U-codes) pointing to the BCM. Instead of a costly dealer part and programming fee, we used a VIN-programmed module like this one. The physical swap took less than 30 minutes, and instantly, all the bizarre electrical issues were gone. It’s a perfect example of how the right part, properly prepared, makes a complex job simple.

Is Your GM Showing These Symptoms?

✔ Power windows, door locks, or mirrors operate intermittently or not at all.
✔ Interior or exterior lights flicker, stay on, or won’t turn on.
✔ The security system acts up, causing no-start conditions (Security light on).
✔ Dashboard warning lights (like ABS or Airbag) are illuminated without a clear cause.
✔ The radio or climate control system behaves erratically.
✔ You have communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes.

A Straightforward Guide to Your BCM Installation

✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
✔ Locate the BCM: The location varies. On many GM trucks and SUVs (Tahoe, Yukon, Escalade), it’s under the steering column. On sedans (Impala, Lucerne) and crossovers (Acadia, Traverse), it’s often behind the left or right side of the dashboard. For Express/Savana vans, check the center dash area.
✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Then, unbolt or unclip the module from its mounting bracket.
✔ Install the New Module: Seat your VIN-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a click as they lock into place.

Important Post-Installation Steps

While this module is programmed to be as plug-and-play as possible, some GM vehicles require a ‘handshake’ between modules after replacement. You may need a professional scan tool for the following:

Airbag System Sync: If your airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the modules.
Brake Pedal Position Relearn: On some models, this recalibration may be required to ensure brake lights and traction control work correctly.

Will This Fit My Vehicle?

This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. It is critical to match your vehicle or original part number. This module fits many popular models, including:

Cadillac CTS, DTS, Escalade, SRX
Chevrolet Avalanche, Captiva, Equinox, Express, Impala, Monte Carlo, Suburban, Tahoe, Traverse
GMC Acadia, Savana, Yukon
Buick Enclave, Lucerne
Hummer H2
Pontiac G8, Torrent
Saturn Outlook, Vue

This is a compatible replacement for the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.

To ensure a perfect match, please provide your VIN after purchase. This allows us to perform the specific programming for your exact vehicle configuration.