Restore Full Control Over Your Vehicle’s Electronics
Is your Cadillac Escalade, Chevy Silverado, or GMC Sierra suffering from bizarre electrical issues? Flickering lights, a dead HVAC system, or power windows with a mind of their own are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and potentially unsafe problems. This OEM-quality replacement, part number 15878753, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play fix.
A Technician’s Notebook: The Ground-Out Gremlin
I remember a 2009 Escalade EXT that rolled into my bay with the owner at his wit’s end. The radio would cut out, the security light was on, and the A/C blower was intermittent. He’d already replaced the battery and alternator. After a quick scan, I saw a handful of communication codes. From experience, I know these GMT900 platforms can have BCM issues, but the first step is always to check the basics. We found a corroded ground connection on the frame under the driver’s door. While cleaning that helped, the BCM had already suffered internal damage from the voltage fluctuations. Installing a new, VIN-programmed 2007-2011 Escalade EXT BCM was the final step that cleared all the codes and restored 100% functionality. It’s a powerful reminder: always check your grounds during the swap!
Is Your GM Truck Showing These Signs of BCM Failure?
A failing BCM doesn’t always mean a completely dead vehicle. Often, it presents as a series of annoying, intermittent problems. If you’re experiencing any of the following, your BCM is the most likely culprit:
- ✔ Unresponsive or erratic HVAC controls, including a blower motor that won’t turn on or off.
- ✔ An illuminated airbag light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Power accessories failing, such as power locks that don’t work, windows that are stuck, or interior/exterior lights acting strangely.
- ✔ Security system malfunctions, leading to no-start conditions, stalling, or misfires.
- ✔ A dashboard lit up with various warning lights and a host of communication-related DTCs.
Your 5-Minute Path to a Perfect Install
One of the best features of this module is its straightforward installation. You don’t need a professional lift or complex tools—just a few basic hand tools and a few minutes of your time. This simple process gets your truck back to normal without the high cost of dealership labor.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most compatible GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s often clipped into a junction block.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Remove the old module and clip the new, pre-programmed one into place.
- Reconnect and Test: Securely plug in all electrical connectors to the new BCM. Reconnect the battery terminal. Start the vehicle and test all functions: lights, wipers, locks, windows, and HVAC to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light on, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-level scan tool. This syncs the new BCM with the airbag system. A Brake Pedal Position relearn may also be required on certain models to ensure proper brake light and stability control function.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for part number 15878753 and is interchangeable with several other part numbers, including 25844480, 25835966, 15263363, and more. It is designed for a wide range of popular GM vehicles. Please verify your model and year below:
- Escalade: 2007-2011
- Escalade ESV: 2007-2011
- Escalade EXT: 2007-2011
Chevrolet:
- Avalanche 1500: 2007-2011
- Silverado 1500: 2007-2011
- Silverado 2500/3500: 2007-2011
- Suburban 1500/2500: 2007-2011
- Tahoe: 2007-2011
- Sierra 1500: 2007-2011
- Sierra 2500/3500: 2007-2011
- Sierra Denali: 2007-2011
- Yukon: 2007-2011
- Yukon XL 1500/2500: 2007-2011
Frequently Asked Questions
Frequently Asked Questions
Do I need to take this BCM to the dealer for programming?
No. This module comes fully pre-programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you time and money.
What if my airbag light is still on after installation?
If the airbag light remains on, it means the new BCM needs to be electronically ‘introduced’ to the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key’ procedure using a professional-grade scan tool.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without the hassle of sending it back.
Will this 2007-2011 Escalade EXT BCM fix my random stalling problem?
Yes, it is a very common solution. A failing BCM can disrupt the vehicle’s anti-theft and communication systems, which can absolutely lead to intermittent stalling or no-start conditions.
How do I know if this is the correct part for my truck?
The best way is to match the part number from your original module. This module, 15878753, replaces many common part numbers. You can also use our vehicle fitment list or contact our expert support with your VIN.