Restore Your Vehicle’s Core Functions

Are you battling bizarre electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a car that refuses to start? These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems. This isn’t a part you can afford to ignore. We offer a dependable, straightforward solution: a replacement GM Body Control Module, pre-programmed specifically for your vehicle.

Is Your Vehicle Showing These Telltale Signs?

A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your BCM is the culprit:

• ✔ Erratic or non-functional power windows, mirrors, and door locks.
• ✔ Interior or exterior lights that won’t turn on or off correctly.
• ✔ A persistent security or anti-theft light on the dash, possibly causing a no-start condition.
• ✔ Horn activating unexpectedly or not working at all.
• ✔ Wipers behaving erratically (e.g., won’t shut off).
• ✔ Diagnostic trouble codes (DTCs) related to lost communication, such as U0140, U0155, or other U-codes.

A Straightforward Guide to BCM Installation

Replacing your GM Body Control Module is a manageable job for a DIYer with basic tools. Our pre-programming service eliminates the most difficult step—the need for expensive dealer tools. Just follow this general process:

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
2. Locate the BCM: Depending on your model (see fitment list), the BCM is typically located under the driver’s or passenger’s side of the dashboard, or behind the center dash console.
3. Remove Trim Panels: You may need to remove a few plastic trim panels or a lower dash cover to gain access. These are usually held on by clips or a few screws.
4. Disconnect and Remove: Carefully unplug the 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 securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
6. Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, wipers, etc.—to confirm the repair.

Post-Installation Procedures

While our VIN programming handles the critical setup, some GM vehicles may require a simple relearn procedure after installation:

• Airbag System Sync: In some cases, the airbag (SRS) light may illuminate after installation. This is not a fault with the part, but a security handshake that needs to be reset. A professional scan tool is required to perform the “Setup SDM Primary Key in BCM” function to sync the modules.
• Brake Pedal Position Relearn: Certain models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation. This can also be performed with a capable scan tool.

Disclaimer: Always consult a factory service manual for procedures specific to your vehicle’s year and model.

Verified Vehicle Compatibility

This module is a direct-fit replacement for a wide array of GM vehicles and interchanges with numerous part numbers, ensuring you get the correct component. Please confirm your model is listed below.
Replaces 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.