Restore Your Cadillac’s Electrical System with a Reliable, Programmed BCM
Are you dealing with baffling electrical issues in your 2010 Cadillac STS? Flickering lights, malfunctioning power windows, a temperamental security system, or strange warning messages on the dash are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can turn your driving experience into a nightmare. I’ve seen it countless times in the shop—what seems like a dozen separate problems all trace back to this single component.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost of dealership visits out of the equation. Simply provide us with your vehicle’s VIN after purchase, and our experts will program this BCM with the very latest GM software specific to your 2010 STS. This ensures perfect communication between modules and often corrects underlying software bugs that your original BCM may have had from the factory. You’re getting a part that’s not only fixed but functionally superior.
Case Study: A Tricky Diagnosis
A customer’s 2010 Cadillac STS came in last week with a laundry list of complaints: the radio would cut out intermittently, the driver’s side window wouldn’t go down, and the key fob only worked when it felt like it. They had already replaced the battery and checked fuses with no luck. After connecting my diagnostic scanner, I saw multiple communication error codes pointing to the BCM. A failing BCM can create these ‘ghost’ issues that seem unrelated. Once we installed a VIN-programmed BCM like this one, all the problems vanished instantly. It’s a common failure point, and this is the definitive fix.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. Replacing your failing unit with this pre-programmed 2010 STS Body Control Module can resolve these issues:
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The anti-theft or security system acting up, preventing the car from starting.
- ✔ False warnings on the instrument cluster (e.g., ‘Service Airbag’).
- ✔ Unresponsive key fob or push-to-start system.
- ✔ HVAC (heating and air conditioning) controls not working correctly.
A Straightforward Guide to Installation
Installing your new 2010 STS Body Control Module is a manageable job for a DIY enthusiast. The BCM is typically located in the center dash area. Always consult a vehicle-specific repair manual for exact location and torque specs.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to discharge.
- Locate the BCM: On the 2010 STS, the BCM is found in the center dash. You will likely need to remove some trim panels to gain access.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in place and securely fasten it. Reconnect all electrical connectors to their correct ports.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Final Steps: Proceed with the critical post-installation procedures outlined below to ensure full functionality.
IMPORTANT: Post-Installation Procedures Required
After installing your new BCM, a few final steps are necessary to sync the module with your vehicle’s other systems. Failure to perform these steps can result in warning lights and improper function.
- Airbag System Reset: The ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This re-establishes communication with the airbag system and will clear the airbag warning light.
- Brake Pedal Position Sensor Relearn: Some vehicles require this procedure to ensure the brake lights and stability control systems function correctly. This also requires a compatible diagnostic tool.
If you are not equipped to perform these relearn procedures, a local qualified mechanic can complete them for you.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles. While this listing is focused on the 2010 STS Body Control Module, it is also compatible with the models listed below. Please verify your original part number against this list.
This module replaces the following 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.
Partial Fitment List:
- Cadillac STS (2010)
- Cadillac DTS (2006-2011)
- Cadillac CTS (2008-2013)
- Chevrolet Impala (2006-2013)
- Chevrolet Equinox (2007-2009)
- GMC Acadia (2007-2012)
- Chevrolet Traverse (2009-2012)
- Buick Enclave (2008-2012)
- Chevrolet Tahoe / Suburban (2010)
- GMC Yukon / Yukon XL (2010)
- Chevrolet Express / GMC Savana Vans (2008-2012)
- …and many more. Please match your part number to confirm.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options. This ensures it works correctly right out of the box, saving you a trip to the dealer.
Is this a simple plug-and-play installation?
It is a direct physical replacement, and the VIN programming handles the software side. However, you will need a professional scan tool for post-installation procedures like the airbag system reset and brake pedal sensor relearn to finalize the installation.
Will this fix my ‘Service Airbag’ light?
If the warning is caused by a faulty BCM, this part will solve the root problem. After installation, the ‘Setup SDM Primary Key’ procedure must be performed with a scan tool to clear the light and re-sync the system.
How do I provide my VIN?
After you complete your purchase, please send us a message with your 17-digit VIN. We cannot program and ship your module until we receive this information.
What if I don’t have a high-end scan tool for the final steps?
Most independent auto repair shops have the necessary tools and can perform the required relearn procedures for a small fee. It’s a quick job for a qualified technician.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part. It is programmed with fresh, updated software to ensure reliability and performance that meets or exceeds the original factory standards.