Restore Your Vehicle’s Electrical System with a Reliable BCM

Are you chasing down electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or an intermittent no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. Stop the guesswork and replace it with a dependable solution that’s ready to install right out of the box.

This isn’t just a replacement part; it’s a complete, hassle-free fix. We take the complexity out of the repair by programming this BCM specifically to your vehicle’s VIN before it ships. This process loads the latest GM factory software, ensuring all systems communicate correctly and benefit from any performance and stability improvements released since your car was new. You get a fully functional module without the expensive trip to the dealership for programming.

Common Signs of a Failing GM Body Control Module

If you’re experiencing any of the following, a faulty BCM is the likely cause. In my 20+ years of experience, these are the most frequent indicators I’ve seen in the shop.

• ✔ Intermittent or non-functional power windows, door locks, or interior lights.
• ✔ Horn honking unexpectedly or not working at all.
• ✔ Security or anti-theft system light is on, preventing the engine from starting.
• ✔ Erratic instrument cluster behavior, such as gauges dropping to zero.
• ✔ Diagnostic Trouble Codes (DTCs) related to lost communication, such as U0140, U0155, or U0164.
• ✔ Problems with the HVAC (heating and air conditioning) controls.

Why Choose a Pre-Programmed GM BCM?

Getting a Programmed GM BCM from us is the smartest way to handle this repair. A new, unprogrammed module from a dealer or parts store is just a metal box; it requires specialized, expensive tools to make it work with your vehicle. Our service eliminates that entire step. We handle the technical part, so you can focus on the physical installation. This saves you time, money, and the frustration of dealing with dealership service appointments.

A Straightforward Guide to Your BCM Replacement

While the BCM location varies by model, the general replacement process is manageable for a confident DIYer. Always disconnect the battery before starting any electrical work.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system capacitors to discharge.
2. Locate the BCM: Depending on your model (e.g., Impala, Acadia, Equinox), the BCM is typically located under the driver’s side dash, behind the center console, or near the steering column. Your service manual will show the exact spot.
3. Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. Use a trim removal tool to avoid breaking clips.
4. Disconnect and Remove: Unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
5. Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all the electrical connectors. Ensure they click securely into place.
6. Post-Installation Steps: Reassemble the dash panels and reconnect the battery. In some cases, post-install procedures like an Airbag System Sync or Brake Pedal Position Relearn may be needed if related warning lights appear. These require a professional-grade scan tool.

Important Note: There is no core charge for this module. You can keep your old part.

Verified Vehicle Compatibility List

This module is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers, including 10382479, 15872388, 20815898, 22860591, 25892622, and many more. Please check the comprehensive list below to confirm fitment for your specific car, truck, or SUV. Providing your VIN at checkout is mandatory to ensure we send you a perfectly matched and programmed unit.