Programmed GM Body Control Module 15299986 | VIN Matched

Restore Your Vehicle’s Brain and End Electrical Frustrations

Are you chasing down bizarre electrical problems in your GM vehicle? One minute the power windows work, the next they don’t. Maybe your dash lights flicker randomly, the radio acts possessed, or worse, you’re getting a dreaded “Service Theft System” message that leaves you stranded. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times. The culprit is almost always a failing Body Control Module (BCM)—the central command center for your vehicle’s body electronics.

Don’t waste time and money at the dealership. We offer a direct, reliable solution: a high-quality replacement GM Body Control Module, part number 15299986, that arrives at your door programmed to your vehicle’s specific VIN. You provide us with your VIN during checkout, and our experts will flash the module with the latest GM software updates. This ensures it communicates perfectly with your vehicle’s other systems right out of the box, saving you from expensive programming fees and the hassle of a tow.

Is Your Vehicle Experiencing These Electrical Gremlins?

A failing BCM can cause a wide range of confusing symptoms. If you’re noticing any of the following, it’s a strong indicator that your BCM is the root cause:

• ✔ Intermittent or non-working power windows, door locks, and interior/exterior lights.
• ✔ The security or anti-theft system light is on, preventing the engine from starting.
• ✔ Erratic behavior from the radio, climate control, or dashboard gauges.
• ✔ False warning messages appearing on the driver information center.
• ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
• ✔ Rapid battery drain while the vehicle is off, caused by the module failing to go to sleep.

A Straightforward Guide to Your BCM Installation

Replacing the BCM is a manageable job for a DIYer with basic tools. Our pre-programming service handles the most complex part for you. Follow these general steps for a successful installation:

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
2. Locate the BCM: The location varies by model (see fitment list below). It’s typically found under the driver’s side or center of the dashboard, or behind a kick panel.
3. Remove the Old Module: Carefully unplug the electrical connectors. Most have a locking tab that needs to be pressed or lifted. Once disconnected, unbolt or unclip the module from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical harnesses—they are often color-coded or keyed to only fit in the correct spot. Listen for a ‘click’ to ensure they are fully seated.
5. Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: lights, locks, windows, radio, etc.
6. Perform Relearns (If Needed): Start the vehicle. In some cases, you may need to perform additional procedures as noted below. If an airbag light appears, a ‘Setup SDM Primary Key’ procedure is required. A ‘Brake Pedal Position Relearn’ may also be necessary for proper brake light and traction control operation.

Confirmed Vehicle Compatibility List

This module is a direct replacement for a wide range of GM cars, trucks, and SUVs. Please verify your model and year below. This part replaces numerous original part numbers, including 15299986, 10382479, 15819552, 22860591, 25892622, and many more listed in the interchange data.

Disclaimer: Post-installation procedures can vary by exact make, model, and year. Always have a factory service manual available for reference or consult with a qualified automotive technician.