Tired of Unpredictable Electrical Problems in Your GM Vehicle?
Are you dealing with flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting? These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated issues. This isn’t a problem that will fix itself—it requires a reliable replacement.
This is your permanent, straightforward solution. We offer a dependable GM Body Control Module, meticulously programmed with the latest GM software updates specifically for your vehicle. Simply provide your Vehicle Identification Number (VIN) during checkout, and our technicians will flash the module before it ships. This critical step ensures that when the part arrives, it’s ready for installation, saving you from expensive dealership programming fees and getting you back on the road with confidence.
Case Study: A Tricky Diagnosis
A customer brought in a 2008 Chevy Impala with a complaint that would drive anyone crazy: sometimes it would start, sometimes it wouldn’t. The security light was on, and the radio would cut out intermittently. They had already replaced the battery and checked the alternator. My initial scan showed a handful of communication codes (U-codes), pointing to a network issue. Instead of just throwing parts at it, I checked the BCM’s power and ground circuits—they were solid. The problem was internal to the module itself. Over time, heat cycles and vibrations can cause microscopic cracks in the circuit board, leading to these intermittent failures. Replacing the BCM with a VIN-programmed unit solved all the issues in one shot. This is a repair I’ve done hundreds of times on these GM platforms.
Is Your Vehicle Showing These Signs of BCM Failure?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Flickering interior or exterior lights
- ✔ Power windows, locks, or mirrors operating erratically or not at all
- ✔ The security or anti-theft system light is on, causing a no-start condition
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ Dashboard warning lights (like ABS or Traction Control) illuminating for no reason
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module)
- ✔ Wipers activating on their own or not turning off
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a DIY enthusiast or any professional mechanic. While the exact location varies slightly by model, the process is generally consistent.
- 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 passenger’s side of the dashboard, often near the steering column or behind the glove box. Refer to your vehicle’s service manual for the exact position.
- Remove Connectors and Module: 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.
- 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 the engine) and test your electronics—windows, locks, lights, and wipers.
- Perform Post-Install Procedures: Start the vehicle. If any new warning lights appear (like the airbag light), one of the post-installation relearn procedures below may be necessary.
Important Post-Installation Steps
Your new BCM comes programmed to your VIN, but some vehicle systems may need to be re-synced after installation. This is a normal part of the process.
- Airbag System Sync: If the airbag 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 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.
- Disclaimer: Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for a wide range of General Motors vehicles. Please verify that your vehicle is on the list below. This module is compatible with the following part numbers:
Interchangeable 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
Compatible Models:
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: Some models may have specific options or ID requirements. Please check your original part number to ensure compatibility.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions to reply to your order confirmation email with your 17-digit VIN. You can also add it to the ‘notes’ section at checkout. We cannot ship your module until we receive your VIN.
Is this a plug-and-play part?
For most vehicles, yes. Because we program the module to your VIN, it eliminates the need for dealer-level programming. However, as noted above, some vehicles may require a simple relearn procedure for the airbag or brake systems, which may require a professional scan tool.
Do I need to return my old BCM?
No, there is no core charge for this module. You can keep your original part.
Will this fix my ‘Service StabiliTrak’ message?
A failing BCM can sometimes trigger StabiliTrak or ABS warnings due to lost communication with other modules. While this part can resolve the issue, these warnings can also be caused by other components like wheel speed sensors. Proper diagnosis is always recommended.
What if I install it and still have problems?
First, double-check all connections. Second, confirm if any post-install procedures are needed for your specific model. If issues persist, it may indicate another problem in the vehicle’s electrical system. Our team of experts is here to help guide you through the diagnostic process.