Restore Your Vehicle’s Electrical System with a VIN-Programmed BCM

Are you battling frustrating electrical gremlins in your GM vehicle? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of confusing and unpredictable problems. This isn’t just an annoyance; it’s a matter of reliability and safety. Stop chasing symptoms and address the root cause with a dependable, direct-fit replacement.

This isn’t just a part in a box. This is a complete solution. We professionally program this GM Body Control Module with the latest GM software updates, tailored specifically to your vehicle’s VIN. This critical step ensures all your vehicle’s options and security systems communicate correctly, saving you a trip to the dealership and hundreds of dollars in programming fees. Simply provide your VIN at checkout, and we’ll handle the rest, shipping you a module that’s ready for installation right out of the box.

Common Signs of a Failing BCM

If your vehicle is acting possessed, the BCM is a prime suspect. In my 20 years of diagnostics, I’ve seen these modules cause some of the most bizarre issues. Here’s what to look for:

• ✔ Erratic interior or exterior lights (flickering, staying on, or not working at all).
• ✔ Power windows, locks, or mirrors behaving intermittently or failing completely.
• ✔ The security or anti-theft system engaging incorrectly, leading to a no-start condition.
• ✔ Inaccurate or dead gauges on the instrument cluster.
• ✔ Horn honking randomly or not working when needed.
• ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.

A Straightforward Guide to Installation

Replacing your GM Body Control Module is a manageable job for a DIY enthusiast. While the exact location varies, a little patience is all you need. Remember to consult a service manual for your specific model for detailed diagrams.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all systems to power down completely.
2. Locate the BCM: On most listed vehicles, the BCM is found under the driver’s or passenger’s side of the dashboard, often attached to the firewall or a support bracket. On vans, it’s typically behind the center dash trim.
3. Remove Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed or lifted. Do not force them.
4. Swap the Module: Unbolt or unclip the old module from its mounting location. Install the new, pre-programmed BCM in its place.
5. Reconnect Everything: Plug all electrical connectors firmly into the new module until they click into place. Reconnect the negative battery terminal.
6. Perform Relearns: Start the vehicle. Note that some models may require a post-installation procedure, such as a Brake Pedal Position Relearn or an Airbag System Sync, which may require a professional scan tool.

Important Post-Installation Steps

Because this BCM is pre-programmed, most functions should work immediately. However, depending on your vehicle’s specific configuration, a couple of additional steps might be necessary:

• ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and can only be done with a bi-directional professional scan tool.
• ✔ Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn might be required on certain models.

Always consult your vehicle’s factory service manual or a certified mechanic if you are unsure about any post-installation requirements.

Verified Vehicle Compatibility

This module is a direct replacement for a wide range of GM cars, trucks, vans, and SUVs, and is compatible with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, and many more. Please check the list below to confirm fitment for your specific vehicle.