Restore Full Functionality to Your Vehicle’s Electronics
Are you dealing with bizarre electrical issues in your Cadillac STS or another GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up randomly, or dashboard warning lights that have a mind of their own? 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 create a cascade of frustrating and unpredictable problems. I’ve seen it hundreds of times in the shop—what seems like multiple unrelated failures often points back to this single component.
This isn’t a part you can just grab off a shelf and install. A new BCM requires expensive programming at a dealership. We take that entire hassle and cost out of the equation. This replacement Body Control Module, part number 15819552, arrives at your door fully programmed with the latest GM software, specifically matched to your vehicle’s VIN. You get a direct-fit solution that restores factory operation without the dealership appointment.
A Technician’s Notebook
A 2010 Cadillac STS rolled into my bay last month with a laundry list of complaints. The owner was at his wit’s end. The interior lights would stay on, the driver’s window wouldn’t go down, and the key fob worked intermittently. He’d already replaced the window switch and a few fuses with no luck. A quick scan showed a slew of communication errors (U-codes) pointing to the BCM. Instead of a complex, multi-day diagnostic nightmare, we confirmed the BCM was the culprit. We installed a VIN-programmed module just like this one, and in under an hour, every single issue was resolved. The customer was thrilled to have his luxury car’s features working perfectly again, saving him what would have been a much larger bill at the dealer.
Common Signs of a Failing BCM
If your vehicle is experiencing these symptoms, a failing BCM is the likely cause. Replacing it with our pre-programmed module can be the definitive fix.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, locks, or mirrors not working correctly.
- ✔ The security system or keyless entry failing intermittently.
- ✔ Horn sounding unexpectedly or not at all.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Communication error codes, such as U0140, stored in the system.
- ✔ Wipers activating on their own or not turning on.
A Straightforward Guide to Installation
Installing your 2010 STS Body Control Module is a manageable job for a confident DIYer or any professional mechanic. Since we handle the programming, your job is a simple component swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On the 2010 Cadillac STS, the Body Control Module is typically located in the center dash area. For other models, it may be under the steering column or behind a kick panel. A quick search for your specific model will confirm its location.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that must be depressed to be released. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same position as the old one. Securely reconnect all electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, windows, locks, wipers, etc.—to confirm the repair.
Post-Installation Checks
In some cases, additional vehicle-specific relearn procedures may be needed after installation. This is normal and ensures all related systems communicate correctly with the new BCM. Common procedures include:
- Airbag System Sync: If the airbag (SRS) light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This must be done with a professional-grade scan tool to sync the systems.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn might be necessary on certain models.
- No Core Charge: You are not required to return your old module. This saves you the time, hassle, and expense of a core return.
Will This Fit My Vehicle?
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. Please verify your vehicle is on this list and that the part number on your original module is listed below.
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
Fitment Includes (but not limited to):
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 VANS 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA VANS 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
Please refer to the detailed fitment data in the original listing to confirm specific options for your vehicle.
Frequently Asked Questions
How does the VIN programming work?
After you complete your purchase, simply send us your 17-digit Vehicle Identification Number (VIN). Our technicians will use it to load the latest, most stable GM-approved software for your specific vehicle onto the module before shipping it. This ensures it works correctly right out of the box.
Do I need to return my old BCM?
No. We do not require a core return. You can keep your old module, which saves you the cost and hassle of shipping it back.
Is this a difficult part to install myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is accessing the module’s location. Since the programming is done for you, the physical swap is straightforward.
What tools are required for the post-installation procedures?
If your vehicle requires an airbag system sync or brake pedal position relearn, these procedures must be performed with a professional-level bidirectional scan tool. Many local repair shops can perform these services for you if needed.
What happens if I don’t provide my VIN?
We cannot ship your order without your VIN. The programming is essential for the module to function in your vehicle. We will hold the order and contact you to get the necessary information.