Restore Your Vehicle’s Electrical System with a Plug-and-Play Solution
Are you chasing electrical gremlins in your GM vehicle? Flickering dash lights, power windows with a mind of their own, a security light that won’t turn off, or even a frustrating no-start condition can often be traced back to one component: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes bad, it can cause a cascade of confusing and unpredictable problems. Stop throwing parts at the issue and get the definitive fix.
This is a direct-fit replacement GM Body Control Module, delivered to your door fully programmed to your vehicle’s specific VIN. We load it with the latest GM-certified software, ensuring it communicates flawlessly with your car, truck, or van’s existing systems right out of the box. This eliminates the need for expensive dealership programming or specialized scan tools, saving you significant time and money.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Dashboard warning lights illuminate randomly or not at all.
- ✔ Horn, wipers, or radio function intermittently.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
A Technician’s Notebook: The 2008 Impala Mystery
I had a 2008 Chevy Impala come into the bay that was giving its owner fits. Sometimes it would start, sometimes it wouldn’t. The radio would occasionally cut out, and the power locks worked only when they felt like it. The owner had already replaced the battery and alternator. After hooking up my scanner, I saw a handful of ‘U’ (communication) codes pointing to a network issue. Experience told me to look at the central hub. We tested the power and ground feeds to the BCM, and they were solid. The culprit was an internal failure in the original GM Body Control Module. A new, pre-programmed unit like this one had the car running perfectly in under an hour, solving all the phantom issues at once.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- ✔ Locate the BCM: On most compatible models, the BCM is located under the driver’s or passenger’s side of the dashboard, often near the steering column or behind the glove box. Refer to a vehicle-specific guide if you’re unsure.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring each one clicks into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test your electronics—windows, locks, lights, and radio. Start the vehicle to ensure everything is functioning correctly.
Important Post-Installation Information
While this module is designed for a simple installation, some GM vehicles require a ‘handshake’ between modules for certain safety systems. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag/SRS warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for a wide range of original equipment part numbers, including 10382479, 15093910, 15837419, 20815898, 22860591, 25892622, and many more. It fits numerous vehicles such as:
- Cadillac CTS, DTS, Escalade, SRX, STS
- Chevrolet Avalanche, Caprice, Captiva Sport, Equinox, Express Van, Impala, Monte Carlo, Suburban, Tahoe, Traverse
- GMC Acadia, Savana Van, Yukon
- Buick Enclave, Lucerne
- Hummer H2
- Pontiac G8, Torrent
- Saturn Outlook, Vue
Please use the fitment checker or contact us with your VIN to confirm absolute compatibility for your specific year, make, and model.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is the main computer that controls the non-engine related functions in your vehicle. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central gateway for dozens of electronic features.
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) allows us to flash the BCM with the exact software and settings for your vehicle’s specific options and features. This makes the installation process much simpler and ensures all functions work correctly without a trip to the dealer.
Is this a difficult part for a DIYer to install?
For most individuals with basic mechanical skills, the physical swap is straightforward. The main challenge is accessing the module, which is usually under the dash. Our pre-programming service handles the most complex part of the job for you.
What if the airbag light is on after I install it?
This is a normal possibility. The new BCM needs to be electronically introduced to the airbag module (SDM). This requires a ‘Setup SDM Primary Key’ procedure with a bi-directional scan tool, which can be done by most professional repair shops.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module, which is helpful if you ever need to reference old part numbers.