Restore Your Truck’s Electrical System with a VIN-Programmed BCM
If you’re dealing with baffling electrical issues in your 2010 Cadillac Escalade EXT—like power accessories that work intermittently, strange security system alerts, or even a no-start condition—the Body Control Module (BCM) is the most likely culprit. As the central command for your vehicle’s body electronics, a failing BCM can create a host of frustrating problems. I’ve spent two decades diagnosing these exact issues, and a faulty BCM is a common find, especially on these GMT900 platforms.
This isn’t just a replacement part; it’s a complete solution. We take the hassle and high cost out of the repair by programming this module specifically to your Escalade’s Vehicle Identification Number (VIN) before it ships. This means it arrives loaded with the latest GM software updates, ready for installation. You get to skip the expensive trip to the dealership for programming, saving you both time and money. Simply provide your VIN after purchase, and we’ll handle the rest.
A Technician’s Notebook: The Ghost in the Gauges
I once had a 2010 Yukon Denali (which shares its platform with the Escalade) in my bay with a complaint of intermittent power loss to the radio, windows, and door locks. The owner had already replaced the battery and checked all the fuses. A scan tool showed a dozen ‘Loss of Communication’ codes (U-codes) with various modules. The key was that they all pointed back to the BCM. After swapping in a new, properly programmed BCM like this one, every single electrical gremlin vanished. It’s a powerful reminder that the 2010 Escalade EXT BCM is the true brain behind the luxury features you rely on every day.
Is Your Escalade Showing These Symptoms?
A failing BCM often gives clear warning signs. If you’re experiencing any of the following, it’s time for a replacement:
- ✔ Erratic power windows, door locks, or mirrors
- ✔ Interior or exterior lights flickering or not working at all
- ✔ Horn sounding unexpectedly or not working
- ✔ “Service Theft Deterrent System” message on the dash
- ✔ Intermittent no-crank or no-start conditions
- ✔ Communication error codes, such as U0140, U0155, or U0164
- ✔ Inoperative remote keyless entry (RKE) fobs
A Straightforward Guide to Installation
Installing your new 2010 Escalade EXT BCM is a manageable job for a confident DIYer. The module 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 before starting work.
- Locate the BCM: On your Escalade EXT, find the BCM mounted to a bracket under the dash, to the left of the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new BCM in the same location and securely plug in 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 and test all body functions—lights, windows, locks, etc.
- Perform Relearn Procedures: As noted below, some vehicles may require additional steps to sync the airbag or brake systems.
Important Post-Installation Steps
Because this module is pre-programmed, most of the hard work is done. However, depending on your vehicle’s specific configuration, you may need a professional scan tool to perform one or more of the following procedures to ensure all systems communicate correctly.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a “Setup SDM Primary Key in BCM” procedure is required to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a recalibration of the brake pedal position sensor to ensure accurate brake light operation and to prevent issues with the traction control system.
- No Core Charge: You can keep your old module. There is no core charge or need to return the original part.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step of the process.
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. While this is the correct module for a 2010 Escalade EXT BCM, please verify your part number or contact us with your VIN to confirm compatibility. 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
Why do you need my VIN number?
Your VIN is essential for us to load the correct, vehicle-specific software from GM onto the module. This ensures all the options your truck came with from the factory (like keyless entry, specific lighting, etc.) work correctly right out of the box.
Is this part truly plug-and-play?
For the vast majority of functions, yes. Because we program it beforehand, you avoid the main dealer-required setup. However, as mentioned in the description, certain security or safety systems (like airbags) may require a final sync procedure with a professional scan tool after installation.
What happens if the airbag light comes on after I install it?
This is a known possibility. It simply means the new BCM needs to be electronically ‘introduced’ to the vehicle’s airbag control module (SDM). A repair shop with a capable bidirectional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to return my old BCM?
No. We do not require you to send back your original part. There is no core charge associated with this purchase, which simplifies the process for you.
Will this fix my ‘Service Theft Deterrent System’ warning?
In many cases, yes. The BCM is a critical component of the Passlock/Passkey anti-theft systems. If the module itself has failed, replacing it with this pre-programmed unit is often the correct fix for that warning message.