If you’re dealing with the maddening electrical glitches that can plague a 2007-2011 Cadillac Escalade EXT, you know the frustration. One minute the power windows work, the next they don’t. The A/C blower motor has a mind of its own, and a persistent airbag light on the dash is a constant worry. These aren’t random, isolated problems; they often point directly to a single failing component: the Body Control Module (BCM).
The BCM is the central nervous system for your truck’s comfort, convenience, and security features. It manages everything from the interior lights and door locks to the windshield wipers and security system. When it starts to fail, it can create a cascade of bizarre, hard-to-diagnose symptoms. This replacement Escalade Body Control Module, part number 15263497, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
From the Diagnostic Bay
I once had a 2009 Escalade in the shop that was driving the owner crazy. The radio would cut out, the driver’s side power seat was dead, and the remote start worked only half the time. The owner had already replaced the battery and checked fuses, suspecting a complex wiring issue. After connecting my scanner, I saw a dozen communication codes pointing everywhere. From experience, I knew this wasn’t a dozen separate problems. It was one. We swapped in a VIN-programmed BCM, and in less than 10 minutes, every single issue was gone. It’s a classic failure pattern I’ve seen hundreds of times on these GM platforms.
Is Your Escalade Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the fix you need:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ HVAC system problems, such as an unresponsive blower fan or incorrect air temperature.
- ✔ An active airbag warning light, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ Security system malfunctions, including random alarm activation or a no-start condition.
- ✔ Erratic interior or exterior lighting behavior.
- ✔ Communication errors with other modules on the vehicle’s network.
A Straightforward Guide to Installation
One of the best features of this module is its simple installation. You don’t need to be a master mechanic to get your truck back in order. The entire process typically takes less than 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On the Escalade EXT, the BCM is located under the driver’s side of the dashboard, usually to the left of the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be pressed. Once disconnected, unclip or unbolt the old BCM from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions—windows, locks, lights, HVAC, etc.—to confirm the repair was successful.
Post-Installation Note: In some cases, particularly if you had an airbag light, a simple relearn procedure may be needed. If the light remains on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ function. A ‘Brake Pedal Position Relearn’ may also be necessary for some models to ensure proper brake light and stability control operation.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15263497 and is interchangeable with a wide range of other part numbers, ensuring broad compatibility. It is designed for the following vehicles:
Also fits a wide range of 2007-2013 GM Trucks & SUVs including:
Chevrolet Avalanche, Silverado 1500/2500/3500, Suburban, Tahoe
GMC Sierra 1500/2500/3500, Denali, Yukon, Yukon XL
Cadillac Escalade, Escalade ESV
Frequently Asked Questions
Do I need to take this BCM to a dealer for programming?
No. This module comes fully programmed to your vehicle’s VIN. It is ready for installation right out of the box, saving you time and money.
What is a core charge?
There is absolutely no core charge for this part. You can keep your old module without any obligation to send it back.
Will this fix my airbag light with code B1001?
This is the most common cause for that code. After installation, the light should go out. If it doesn’t, the simple ‘Setup SDM Primary Key’ procedure needs to be performed with a compatible scan tool to sync the new BCM with the airbag system.
My original part number is different. Will this still work?
Yes, this module is a direct replacement for numerous GM part numbers, including 25844480, 25835966, 15263363, 15878753, and many others. It is designed to be a consolidated, reliable replacement.