Restore Full Electrical Function to Your Cadillac
If you’re dealing with baffling electrical issues in your 2007-2011 Cadillac Escalade ESV, the Body Control Module (BCM) is the most likely culprit. As the central nervous system for your vehicle’s comfort and convenience features, a failing BCM can cause a cascade of frustrating problems. This OEM-quality replacement, part number 15901388 (interchangeable with 25844480 and others), arrives expertly programmed to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming—it’s a true plug-and-play solution designed to get you back on the road with confidence.
A Technician’s Notebook: The Case of the Haunted Escalade
I remember a 2008 Escalade ESV that came into my shop with a list of problems that seemed completely unrelated. The owner said his power windows worked one day but not the next, the radio would randomly shut off, and an airbag light was permanently on the dash. He’d already replaced the battery and checked fuses. After pulling the codes, I saw a B1001 for the SDM and a slew of U-codes indicating loss of communication. Instead of chasing each symptom, I went straight for the BCM. After swapping in a VIN-programmed unit, every single issue vanished. It’s a classic failure pattern I’ve seen hundreds of times on these GM platforms; the BCM is the hub, and when it fails, it creates chaos across multiple systems.
Is Your Escalade Showing These Electrical Faults?
- ✔ The HVAC system is unresponsive, or the blower motor seems to have a mind of its own.
- ✔ An airbag warning light is illuminated on your dash, often with a DTC B1001 stored.
- ✔ Power windows, door locks, or interior/exterior lights are working intermittently or not at all.
- ✔ Your vehicle’s security system is malfunctioning, potentially causing no-start or stalling conditions.
- ✔ The instrument cluster displays strange warnings or loses power sporadically.
- ✔ You have multiple communication-related Diagnostic Trouble Codes (DTCs).
Your 5-Minute Path to a Full Restoration
Replacing the 2007-2011 Escalade ESV BCM is a straightforward job that most DIYers can complete in their driveway. The module is conveniently located and requires no special tools for the physical swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: You’ll find the module tucked under the driver’s side of the dashboard, near the steering column.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM and remove it from its mounting bracket. Install the new module and securely reconnect all connectors.
- Reconnect Power: Reattach the negative battery terminal. Start the vehicle and test all functions—windows, locks, lights, wipers, and HVAC controls.
- Important Post-Install Note: In some cases, the airbag light may remain on after installation. This is normal and requires a ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade scan tool. This syncs the new BCM with the airbag system. A brake pedal position relearn may also be needed for certain models.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part number 15901388 and is also interchangeable with a wide range of other part numbers, ensuring broad compatibility. Please verify your vehicle is on the list below.
Chevrolet: Avalanche 1500 (2007-2011), Silverado 1500/2500/3500 (2007-2013), Suburban 1500/2500 (2007-2011), Tahoe (2007-2011)
GMC: Sierra 1500/2500/3500 (2007-2013), Sierra Denali (2007-2013), Yukon (2007-2011), Yukon XL 1500/2500 (2007-2011)
This module replaces part numbers: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, 22860591.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, security system, wipers, and the HVAC climate control system.
Why is VIN programming so important for this part?
VIN programming loads your vehicle’s specific software and settings onto the BCM. This ensures it communicates correctly with other modules in your Escalade and that all features work as intended from the factory. Our service saves you a separate, costly programming session at a dealership.
Is this a difficult part for a DIYer to install?
Not at all. The physical installation is very simple, typically taking less than 10 minutes with basic hand tools. It involves unplugging the old module and plugging in the new one. No complex wiring is required.
My airbag light is on. Will this BCM fix it?
If the airbag light is caused by a faulty BCM (often indicated by code B1001), this part will resolve the root cause. However, after installation, you will need a scan tool with special functions to perform the ‘Setup SDM Primary Key in BCM’ procedure to turn off the light.
Do I need to return my old BCM? Is there a core charge?
No. We do not require you to send back your original part. There is absolutely no core charge, making the process simpler and more convenient for you.