Restore Your Cadillac’s Brain and End Electrical Gremlins
If your 2010 Cadillac STS is acting possessed—with flickering lights, malfunctioning power windows, a haywire security system, or even a no-start condition—the culprit is often a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can turn your driving experience into a nightmare. I’ve seen it countless times in my 20+ years on the shop floor: what seems like a dozen separate electrical problems all trace back to this single component.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We provide a top-quality BCM that comes with a professional Cloning Service. Simply provide your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your car. This means you can bypass the expensive and time-consuming trip to the dealership for programming. It’s designed to be a direct-fit, plug-and-play fix to get your luxury sedan back to factory-perfect operation.
Case Study: A Tricky Diagnosis
A customer brought in a 2010 Cadillac STS with a truly baffling set of symptoms. The radio would turn on by itself, the driver’s side window wouldn’t go down, and the interior dome lights would stay on, draining the battery overnight. They had already replaced the battery and the window switch with no luck. After connecting my diagnostic scanner, I saw a flood of U-codes (communication errors) pointing to a network failure. Instead of chasing each symptom, experience told me to check the central hub: the BCM. A quick inspection revealed evidence of water intrusion near the module’s location in the center dash, a common cause of failure. By replacing the faulty unit with a properly programmed 2010 STS Body Control Module, we resolved all the issues in one shot, saving the customer hundreds in diagnostic dead-ends.
Is Your Cadillac Showing These Signs?
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system engaging randomly or preventing the car from starting.
- ✔ The radio or climate control system behaving unpredictably.
- ✔ A “Service Security System” or other warnings on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, U0155, or B1001 stored in the system.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On the 2010 Cadillac STS, the Body Control Module is typically located in the center dash area. You may need to remove trim panels to gain access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket and remove it.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all the electrical harnesses. Ensure they click into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, radio, etc. Refer to the post-installation procedures below if any warning lights appear.
Important Post-Installation Steps
While our cloning service makes this a near plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. Key procedures that might be needed include:
- Airbag System Sync: If the airbag light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the modules and clears the light.
- Brake Pedal Position Relearn: On some models, this recalibration may be necessary to ensure brake lights and traction control function correctly.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers, ensuring a perfect match. While this listing is focused on the 2010 STS Body Control Module, it also fits the models listed below. Please confirm your part number or contact us with your VIN to guarantee fitment.
Compatible 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
Frequently Asked Questions
How does the VIN programming service work?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to access the latest GM software and flash the module specifically for your vehicle’s configuration. This ensures it works correctly right out of the box.
Do I need to send my old BCM to you?
No, this is a cloning service, not a repair service. We program a replacement module for you. Your original module is always returned to you along with the programmed replacement unit; we do not keep the core.
Is this something a DIY mechanic can install?
Yes, the physical installation is straightforward for someone with basic mechanical skills. It involves removing some dash panels and swapping the module. Since we pre-program it, you avoid the most complex part of the job.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool (like a Tech 2, MDI, or high-end Snap-on/Autel scanner). Many local repair shops can perform these relearns for a small fee if needed.
What if I install it and still have problems?
While a faulty BCM is a very common cause for these symptoms, we always recommend proper diagnostics. If issues persist, double-check all connections. It’s possible another fault exists in the vehicle, but our team is here to help you troubleshoot.