Restore Full Electrical Function to Your Cadillac
Are you battling frustrating electrical gremlins in your 2010 Escalade EXT? Issues like flickering interior lights, power windows or locks that work intermittently, or a security system that acts up on its own are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can make your luxury truck feel unreliable. This is a direct-replacement, VIN-programmed BCM that solves these problems without a costly trip to the dealership.
We take the guesswork and hassle out of the repair. Simply provide your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software specific to your Escalade. It arrives at your door ready for installation, saving you hundreds in programming fees and diagnostic time. This isn’t just a part; it’s a complete solution designed to get you back on the road with confidence.
Case Study: A Tricky Diagnosis
A customer’s 2010 Escalade EXT came into my shop last month with a bizarre set of symptoms: the radio would randomly shut off, the driver’s side power window wouldn’t work, and the anti-theft light was flashing, causing a no-start condition. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I noticed multiple communication loss codes with various modules. This immediately pointed me to the central hub—the BCM. Water intrusion from a leaky windshield seal had corroded a few pins on the original module. Installing a VIN-programmed 2010 Escalade EXT BCM like this one resolved all issues in one go, restoring communication and all accessory functions instantly.
Is Your Truck Showing These Symptoms?
A failing BCM can cause a wide range of issues. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Malfunctioning keyless entry remote or push-button start.
- ✔ Security system faults or vehicle refusing to start.
- ✔ Horn sounding unexpectedly or not working at all.
- ✔ False warnings on the instrument cluster (e.g., ‘Service Theft System’).
- ✔ HVAC (heating and A/C) controls acting up.
A Straightforward Guide to Your 2010 Escalade EXT BCM Installation
Replacing the BCM is a manageable job for a DIYer with basic tools. In the 2010 Escalade EXT, the BCM is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow all systems to power down completely.
- Access the Module: You will likely need to remove the lower dash panel or knee bolster under the steering wheel to gain access to the BCM. It’s usually held in by a few clips or screws.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Reconnect all the electrical connectors, ensuring they click securely into place.
- Final Steps & Reassembly: Reinstall the dash panel and reconnect the negative battery terminal. Your new module is installed, but a few crucial steps remain.
Important Post-Installation Procedures
After installing your new BCM, you must perform a couple of key procedures to ensure all vehicle systems work together correctly. This is critical for safety and functionality.
- Airbag System Reset: The airbag warning light will likely be on. You must use a compatible diagnostic scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This re-establishes the security handshake between the new BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated after a BCM replacement. This ensures the brake lights and stability control system function as intended. This is also done with a professional-grade scan tool.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15921352 and a wide range of other GM part numbers. It is guaranteed to fit the following vehicles (please verify your specific options):
- ACADIA 07-12
- AVALANCHE 1500 10 (ID 25892622)
- CAPRICE 11-13
- CAPTIVA SPORT 12
- CTS 08-13
- DTS 06-11
- ENCLAVE 08-12
- EQUINOX 07-09
- ESCALADE 10 (ID 20815898 or 25892622)
- ESCALADE ESV 10 (ID 20815898 or 25892622)
- ESCALADE EXT 10 (ID 25892622)
- EXPRESS 1500/2500/3500 VANS 08-12
- G8 08-09
- HUMMER H2 08-09
- IMPALA 06-13
- LUCERNE 06-11
- MONTE CARLO 06-07
- OUTLOOK 07-10
- SAVANA 1500/2500/3500 VANS 08-12
- SRX 07-09
- STS 10
- SUBURBAN 1500 10 (ID 20815898 or 25892622)
- TAHOE 10 (ID 20815898 or 25892622)
- TORRENT 07-09
- TRAVERSE 09-12
- VUE 08-10
- YUKON 10 (ID 20815898 or 25892622)
- YUKON XL 1500 10 (ID 20815898 or 25892622)
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.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle all the programming for you before shipment. Just provide your VIN when you order, and the module will arrive ready to be installed and synced with your vehicle’s other systems.
Is this a used part from a junkyard?
Absolutely not. This is a high-quality, inspected, and tested Body Control Module that is verified for full functionality and programmed with the latest stable software from GM for your specific vehicle.
What tools do I need for the post-installation procedures?
You will need a professional-grade bidirectional scan tool to perform the ‘Setup SDM Primary Key’ and ‘BPP Sensor Relearn’ procedures. Many local repair shops can perform these services for you if you do not own one.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. The BCM is integral to the vehicle’s anti-theft system. A faulty BCM is a very common cause of this warning and the associated no-start condition. This programmed module is designed to resolve that communication error.
What happens if I don’t perform the airbag reset?
If the SDM key setup is not performed, the airbag warning light will remain illuminated on your dash, and more importantly, the supplemental restraint system (airbags) may not function correctly in the event of a collision. This is a critical safety step.