Tired of Chasing Electrical Gremlins in Your GM Vehicle?
If you’re dealing with a car or truck that seems to have a mind of its own—power windows that won’t cooperate, dashboard lights flickering randomly, or a security system that prevents you from starting your engine—you’re not alone. These frustrating and often unpredictable issues are hallmark signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can disrupt everything from your interior lights to your door locks. Instead of spending a fortune at the dealership on diagnostics and programming, get the reliable, cost-effective solution right here.
This replacement Body Control Module is the definitive fix for these problems. The best part? We handle the complex part for you. Before we ship it, we will program the module with the latest GM software, perfectly matched to your vehicle’s specific VIN. This means no extra trip to the dealer, no expensive programming fees, and a much simpler installation process. This is the smart, efficient way to restore your vehicle’s proper function and get back on the road with confidence.
A Technician’s Notebook: The Haunted Impala
I once had a 2011 Chevy Impala in my bay that the owner called “Christine.” The radio would turn on by itself, the door locks would cycle while driving, and the anti-theft light would flash intermittently, sometimes causing a no-start. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a handful of communication codes (U-codes) pointing to a network issue. Experience told me to look at the hub of that network: the BCM. A quick check of the BCM’s power and ground connections confirmed they were solid. The diagnosis was clear—internal failure of the module. We installed a VIN-programmed BCM just like this one, and every single ghost in that machine vanished instantly. It’s a fix I’ve performed hundreds of times on these GM platforms.
Is Your Vehicle Showing These Symptoms?
A failing BCM can cause a wide range of issues. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Power windows, mirrors, or door locks operating erratically or not at all.
- ✔ Interior dome lights or dashboard lights staying on or not turning on.
- ✔ The security or anti-theft system light is on, often causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ False warnings on the instrument cluster, such as “Service StabiliTrak” or “Service Airbag.”
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, U0155, or other communication errors stored in the system.
Your Straightforward BCM Installation Guide
While the exact location of the BCM varies by model, the replacement process is generally manageable for a DIYer with basic tools. Always consult a service manual for your specific vehicle’s procedure.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most listed vehicles, the BCM is located under the driver’s side or center of the dashboard. It’s a plastic box with several large electrical connectors.
- Remove Connectors: Carefully unplug all electrical connectors from the old BCM. Most have a locking tab that needs to be depressed or a lever that needs to be swung over to release the plug. Do not force them.
- Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Place the new, pre-programmed module in the same position and secure it.
- Reconnect Everything: Plug all electrical connectors firmly into the new BCM. You should hear or feel a click as they lock into place. Reconnect the negative battery terminal.
- Test and Verify: Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to ensure everything is working as expected.
Important Post-Installation Information
Because this is a Programmed GM BCM, most functions will work immediately. However, on some models, a few additional steps, known as ‘relearn procedures,’ may be required to sync all systems perfectly. Please note the following:
- ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag module.
- ✔ Brake Pedal Position Relearn: On certain models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation. This also typically requires a capable scan tool.
- ✔ No Core Charge: You are not required to send your old module back to us. Keep it!
Verified Fitment For These GM Models
This module is a direct replacement for a wide array of GM cars, trucks, and SUVs. Please verify your vehicle is on this list. This unit replaces part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, and many more.
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
Note: Specific options or IDs may apply. Please match your part number or contact us with your VIN to confirm compatibility.
Frequently Asked Questions
Frequently Asked Questions
What exactly does a Body Control Module (BCM) do?
The BCM is the main computer responsible for managing your vehicle’s non-engine related functions. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and even the horn. When it fails, you get strange electrical issues.
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the specific software and settings for your car’s exact configuration (like power seats, sunroof, etc.). This ensures it works correctly right out of the box, saving you a trip to the dealer for programming.
Is this a difficult part to install myself?
For most DIYers with basic mechanical skills, this is a very manageable job. The BCM is typically held in place by a few bolts or clips and has several plug-in connectors. The most challenging part is often just accessing it under the dashboard. Our pre-programming service eliminates the most difficult step: the software setup.
Will this fix my “Service StabiliTrak” message?
It can. While that message can be caused by other things (like a wheel speed sensor), the BCM is a critical part of the StabiliTrak system. If the BCM is failing and causing communication errors on the vehicle’s data network, it can certainly trigger that warning light. A potential Brake Pedal Position Relearn after install is related to this system.
What if the airbag light comes on after I install it?
This is a known possibility and is part of the vehicle’s security protocol. The new BCM needs to be electronically “introduced” to the airbag system’s computer (SDM). This requires a professional scan tool to perform the “Setup SDM Primary Key in BCM” procedure, which will turn off the light.