Restore Your Vehicle’s Electrical System with a Reliable, Programmed BCM
Are you battling frustrating electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or random warning messages on your dash 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 cause a cascade of confusing and unpredictable problems. In my 20+ years of experience, I’ve seen how a failing BCM can make a perfectly good car feel unreliable. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
Forget the expensive trip to the dealership and the hassle of scheduling programming appointments. We offer a straightforward, dependable solution. This is a high-quality replacement GM Programmed BCM that arrives at your door ready for installation. We use your vehicle’s VIN to flash the module with the latest, most stable software directly from GM. This ensures perfect compatibility and function, restoring your vehicle’s features to factory-spec performance. This isn’t a generic, one-size-fits-all part; it’s a component specifically prepared for your car, truck, or van.
From the Diagnostic Bay
Just last month, a 2011 Chevy Impala was towed to my shop. The owner was at his wit’s end. The car would intermittently refuse to start, the ‘Service Theft System’ light was on, and the radio would randomly shut off. His scan tool showed a U0140 ‘Lost Communication With Body Control Module’ code. After verifying the wiring and power feeds to the BCM were solid, the diagnosis was clear: internal BCM failure. Instead of a costly dealer replacement, we used this exact service. We sent in the original BCM for cloning, received the programmed replacement, and installed it. The car started right up, all codes cleared, and the customer drove away with a reliable vehicle again. This is a common story, and this service is the most efficient fix.
Is Your Vehicle Showing These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, your BCM is the likely culprit:
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic or non-working interior and exterior lights (headlights, dome lights).
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Warning messages like “Service Stability System” or “Service Airbag.”
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Remote keyless entry (fob) stops working.
Your Straightforward BCM Installation Guide
Installing your new GM Programmed BCM is a manageable job for a confident DIYer or any professional technician. While locations vary (see fitment list), the general process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all modules to power down completely.
- Locate the BCM: The BCM is typically found under the driver’s or passenger’s side of the dashboard, or behind the center console. Consult your service manual for the exact location on your model.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have locking tabs that need to be depressed or lifted. 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. Reconnect all the electrical harnesses, ensuring each one clicks securely into place.
- Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- Perform Post-Install Checks: Start the vehicle and test all body functions: lights, windows, locks, wipers, and radio. Check the instrument cluster for any warning lights. Refer to the post-installation procedures below if needed.
Important Post-Installation Steps
In some cases, additional steps with a professional scan tool may be required to sync the new BCM with other vehicle systems:
- Airbag System Sync: If the airbag light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to re-establish communication between the BCM and the airbag module.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary to ensure correct brake light operation and to prevent issues with the traction control or stability systems.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for reference or consult with a qualified automotive technician.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for a wide range of GM vehicles. Please verify your part number and vehicle model from the list below. This part is compatible with original 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, and 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 About This BCM
What exactly does a Body Control Module do?
The BCM acts as the main computer for all the non-engine related electronic features in your vehicle. This includes power windows, locks, lights, wipers, the security system, and the instrument cluster, among others.
Why do you need my vehicle’s VIN?
Your VIN is essential for us to program the BCM with the correct software and vehicle-specific options. This ensures that all features work correctly and that the module communicates properly with the other computers in your vehicle, like the ECM and TCM.
Is this part truly ‘plug and play’?
Yes, because we program it to your VIN before shipping, it is designed to be a plug-and-play installation. However, as noted, some vehicles may require a simple relearn procedure for systems like the airbag or brake pedal sensor, which requires a capable scan tool.
What is the ‘Cloning Service’ process?
With our cloning service, you send us your original BCM. We extract the critical vehicle data and transfer it to the replacement unit. This guarantees a perfect match. We then ship both your original module and the ready-to-install replacement back to you.
Do I need to return my old BCM as a core?
No, there is no core charge. Our service involves cloning your original module, so we require it to perform the programming. It will always be returned to you along with the newly programmed replacement.
What if my airbag light comes on after I install the BCM?
This is an expected possibility on some models. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A professional mechanic can perform the ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool to resolve this.