Tired of Chasing Electrical Gremlins in Your GM Vehicle?
As a technician with over two decades of experience, I’ve seen it all. A customer comes in with a car that seems possessed: the radio turns on and off by itself, the power windows have a mind of their own, the security light is flashing, and a cluster of confusing communication codes (like U0140) are stored. These aren’t separate problems; they’re classic symptoms of a failing Body Control Module (BCM). Your vehicle’s BCM is the central command center for all its body and accessory functions. When it starts to fail, it creates frustrating and unpredictable issues. This isn’t just an annoyance—it can affect your vehicle’s security and safety systems.
This is the definitive solution: a reliable, professionally prepared Programmed GM BCM. Forget the expensive trip to the dealership and the hassle of finding a shop that can perform complex programming. We handle the hard part for you. Simply provide your vehicle’s VIN at checkout, and our experts will flash this module with the latest GM-certified software specific to your car or truck. It arrives at your door ready for a straightforward installation, restoring full functionality and peace of mind.
Case Study: A Tricky Diagnosis
I remember a 2011 Chevy Impala that came into my shop with the strangest issue. The owner complained that his interior dome lights wouldn’t turn off, draining the battery overnight. He’d already replaced the battery and checked every door switch. We scanned it and found no direct codes pointing to a single cause. After tracing the wiring diagrams, we realized the command to turn the lights off, originating from the BCM, was never being sent consistently. It was an internal fault in the module itself. We installed a pre-programmed BCM, and the problem was solved instantly. These modules are the source of countless ‘mystery’ issues I’ve diagnosed over the years.
Common Signs of a Failing GM BCM
If your vehicle is experiencing any of these issues, a faulty BCM is the most likely cause. Replacing it with our Programmed GM BCM can resolve these problems in one go.
- ✔ Intermittent or non-working power windows, door locks, and mirrors.
- ✔ Erratic behavior from the radio, interior lights, or instrument cluster gauges.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Security system warning lights illuminated or causing a no-start condition.
- ✔ False warnings on the driver information center (e.g., ‘Service Tire Monitor System’).
- ✔ Stored diagnostic trouble codes (DTCs) such as U0140, U0155, or other ‘U’ (communication) codes.
- ✔ Wipers activating on their own or not parking in the correct position.
A Straightforward Guide to Your BCM Swap
Installing your new BCM is a manageable job for a confident DIYer or any professional mechanic. While the exact location varies by model (see fitment list), the process is generally similar.
- Safety First: Always 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 of these GM vehicles, the BCM is located under the driver’s side or center of the dashboard. It’s a plastic box with several large multi-pin electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. 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 firmly into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the ignition to the ‘On’ position (without starting the engine) and test all body functions: lights, locks, windows, radio, etc.
- Perform Relearns (If Needed): Start the vehicle. In some cases, as noted below, a security, airbag, or brake pedal position relearn may be required using a capable scan tool if a warning light is present.
Important Post-Installation Information
Your new Programmed GM BCM is designed for a seamless transition. However, due to the complexity of modern vehicle networks, some models may require additional steps:
- ✔ Airbag System Sync: If the airbag (SRS) light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag module.
- ✔ Brake Pedal Position Relearn: Some vehicles may require a brake pedal position sensor relearn to ensure correct operation of the brake lights and stability control systems.
- ✔ No Core Charge: We do not require you to send your old part back. There is no core charge or deposit associated with this purchase.
Disclaimer: Always refer to a factory service manual for procedures specific to your vehicle’s year, make, and model. If you are unsure, consult a qualified automotive technician.
Verified Vehicle Compatibility List
This module is a direct replacement for numerous part numbers and fits a wide range of GM vehicles. Please confirm your vehicle is on this list. This unit 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.
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
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. We use your vehicle’s VIN to load the correct software and configurations, so it’s ready for installation when you receive it.
Is this a simple plug-and-play installation?
For most vehicles, yes. You simply swap the old module with this new one. However, as with any major electronic component, some vehicles may require a simple relearn procedure for the security or airbag system, which may require a professional scan tool.
What is a ‘core charge’ and do I have to pay it?
A core charge is a deposit you pay until you return your old part. We make it easy for you—there is absolutely NO core charge on this BCM. You can keep your old part.
Will this fix my ‘Service Airbag’ light?
If the airbag light is caused by a communication failure with a faulty BCM, this part will resolve the root cause. However, after installation, the system may need to be professionally synced (‘Setup SDM Primary Key in BCM’) to clear the light.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.
My part number isn’t 15299986, but it’s on the list. Will this work?
Yes. The extensive list of part numbers in the description are all interchangeable. This module serves as a direct, updated replacement for all of them, programmed specifically for your vehicle.