Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
Are you dealing with frustrating electrical problems in your GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). As a technician with over 20 years of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant headaches. It’s the central hub for your car’s body electronics, and when it fails, chaos ensues.
This isn’t just a replacement part; it’s a complete solution. We offer a professional 2010 STS Body Control Module cloning service. Simply provide your vehicle’s VIN during checkout, and our experts will program this module with the latest GM software specific to your car. This process ensures that the module communicates flawlessly with your vehicle’s other computers, restoring full functionality without a costly trip to the dealership for programming.
A Technician’s Notebook: The Phantom Drain Mystery
I remember a 2011 Cadillac DTS that came into the shop with a classic ‘phantom drain’ issue. The owner had replaced the battery twice, but it would still be dead every few mornings. Standard diagnostic tests on the alternator and battery were fine. After connecting a scan tool, I noticed intermittent communication loss with the BCM (U0140). On these vehicles, a failing BCM can fail to put other modules to ‘sleep’ when the car is off, causing a slow but steady battery drain. We performed a cloning service onto a replacement BCM, and the problem was solved instantly. It’s a textbook example of how a failing 2010 STS Body Control Module can cause symptoms that seem unrelated at first glance.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty Body Control Module is the likely culprit. In my shop, I’ve diagnosed hundreds of BCM failures that present with these exact symptoms:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ The instrument cluster displaying incorrect information or warning lights (like the airbag light).
- ✔ Communication error codes, such as U0140, U0155, or other ‘U’ codes.
- ✔ Unexplained battery drain when the vehicle is turned off.
A Straightforward Guide to Installation
Our VIN programming service makes this a job that a confident DIYer or any professional mechanic can handle easily. While the exact location varies, the process is generally consistent.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On most compatible vehicles, the BCM is found under the driver’s or passenger’s side of the dashboard, or in the center console area. A quick search for your specific model will confirm its location.
- Disconnect and Remove: Carefully unplug the electrical connectors from your old BCM. They have locking tabs that need to be pressed to release. 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 and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock 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—lights, locks, windows, etc.—to confirm proper operation.
Important Post-Installation Steps
Because this module is central to many systems, a couple of quick relearn procedures may be necessary after installation. This is normal and ensures all systems are properly synced.
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure your brake lights and traction control system function correctly. This is also done with a professional scan tool.
Disclaimer: Always consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify that your vehicle and part number are on this list to ensure proper fitment. This module is compatible with 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.
Frequently Asked Questions
Frequently Asked Questions
What is a “Cloning Service”?
Our cloning service involves transferring your vehicle’s essential configuration data (like VIN, security information, and specific options) from your original BCM to this replacement unit. This makes the new module a perfect electronic match for your car, ensuring a true plug-and-play installation.
Do I need to send you my original BCM?
Yes, for our cloning service, you will need to send us your original module. We perform the data transfer and then ship both your original module and the newly programmed replacement back to you. We do not keep your old part.
Is programming really included in the price?
Absolutely. The price includes the professional programming service. There are no hidden fees. You get a module that’s ready for installation right out of the box, saving you hundreds in dealership programming fees.
Will this fix my specific problem?
This 2010 STS Body Control Module will resolve issues directly caused by a faulty BCM. If you are experiencing the symptoms listed above, there is a very high probability this is the solution. For a definitive diagnosis, we always recommend consulting a professional mechanic or running a full diagnostic scan.
What happens with my old module?
Your original module is always returned to you along with the programmed replacement unit. We do not keep customer cores for this service.