Programmed GM Body Control Module 15276271 | VIN Matched for Easy Install

Restore Full Functionality to Your GM Vehicle

Is your car or truck suffering from baffling electrical problems? One minute the power locks don’t work, the next the security light is on, or worse, it won’t start at all. As a technician with over two decades of experience, I’ve seen these exact issues countless times, and they almost always point to a failing Body Control Module (BCM). The BCM is the nerve center for your vehicle’s comfort and security features, and when it fails, it can create a cascade of frustrating, ghost-in-the-machine problems. This isn’t just an inconvenience; a faulty BCM can affect safety systems like exterior lighting and anti-theft deterrents.

This isn’t just a replacement part; it’s a complete solution. We take the guesswork and dealer expense out of the equation. By providing us with your Vehicle Identification Number (VIN) during checkout, we will program this GM Body Control Module with the latest factory software specific to your vehicle. It arrives at your door ready for installation, saving you hundreds in dealership programming fees and diagnostic time.

Are You Experiencing These BCM Failure Symptoms?

A failing BCM can manifest in many ways. If your vehicle is showing any of these signs, a faulty BCM is the most likely culprit:

• ✔ Erratic power windows, door locks, or interior lights that seem to have a mind of their own.
• ✔ The security light on the dash stays on or flashes, often accompanied by a “Service Theft System” message.
• ✔ Intermittent no-start or no-crank conditions where the engine won’t even turn over.
• ✔ Horn honking randomly or not working when you press it.
• ✔ Windshield wipers activating on their own or not turning off.
• ✔ Communication-related Diagnostic Trouble Codes (DTCs) stored in the system, such as U0140, U0155, or U0164.

Your Step-by-Step BCM Installation Guide

Installing your new BCM is a straightforward job for a confident DIYer or any professional mechanic. While the exact location varies, the process is generally similar across models.

1. Safety First: Always begin by disconnecting the negative terminal from your vehicle’s battery to prevent any electrical shorts.
2. Locate the Old BCM: The BCM is typically found inside the cabin, often under the driver’s side of the dashboard, near the steering column, or behind a panel in the center console. Consult a service manual for your specific vehicle if you’re unsure.
3. Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab that needs to be depressed. Once unplugged, unbolt the module from its mounting bracket and remove it.
4. Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
5. Reconnect Power: Reattach the negative battery terminal and tighten it securely.
6. Final System Checks: Start the vehicle and test all functions controlled by the BCM—windows, locks, lights, wipers, etc. Note that some vehicles may require the additional steps below.

Important Post-Installation Information

While our VIN programming handles the heavy lifting, some vehicle systems may need to be re-synced after the new GM Body Control Module is installed. This is normal. Specifically, an Airbag System Sync (‘Setup SDM Primary Key in BCM’) may be needed if the airbag light is on, and a Brake Pedal Position Relearn might be required for proper brake light and traction control operation. These procedures require a professional-grade scan tool. And remember, there is absolutely no core charge. You can keep your old part.

Verified Vehicle Compatibility

This module is a direct replacement for part number 15276271 and all the interchangeable part numbers listed below. It is guaranteed to fit the following GM vehicles:

Frequently Asked Questions