Are you battling bizarre electrical issues in your Cadillac Escalade or another GM truck? One minute the A/C works, the next it doesn’t. Your power windows have a mind of their own, or a stubborn airbag light refuses to turn off. These aren’t just minor annoyances; they’re classic signs of a failing Body Control Module (BCM), the electronic nerve center of your vehicle’s comfort and convenience features. Instead of spending a fortune at the dealership, take control with our pre-programmed BCM, designed for a direct, hassle-free installation.
This module is a reliable, OEM-quality replacement for part number 15878753 and many others. We take the guesswork and extra cost out of the repair by programming it to your vehicle’s specific VIN before it ships. This means no expensive trips to the dealer for programming—it’s ready to install right out of the box, restoring the functionality you depend on every day.
Case Study: The Ghost in the Machine
A customer brought in a 2009 Silverado with an intermittent A/C blower. He’d already replaced the blower motor and the resistor, but the problem persisted. After a quick scan, we saw no communication codes from the HVAC module. Instead of just throwing more parts at it, we checked the BCM data stream. We found the BCM wasn’t sending the ‘on’ command to the blower relay consistently. A quick swap with one of our pre-programmed BCMs solved the issue in minutes. It’s a common scenario I’ve seen hundreds of times—what looks like a component failure is often the BCM itself.
Is Your GM Truck Exhibiting These BCM Failure Signs?
A failing BCM can cause a cascade of confusing electronic problems. If you’re experiencing any of the following, this module is the likely solution for your 2007-2011 Escalade BCM issues.
- ✔ Intermittent or non-working HVAC controls and air conditioning.
- ✔ Power windows, door locks, or interior lights operating erratically or not at all.
- ✔ The security system acting up, causing no-start or stalling conditions.
- ✔ An illuminated airbag warning light, often with Diagnostic Trouble Code (DTC) B1001.
- ✔ Unexplained battery drain or strange grounding-related symptoms.
- ✔ Multiple communication U-codes stored in the vehicle’s computer system.
A Straightforward Guide to BCM Replacement
This is a repair most DIY enthusiasts can handle in their own driveway in under 15 minutes. The BCM is typically located under the driver’s side dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronics.
- Locate the Module: On most Escalade, Tahoe, and Silverado models, the BCM is found under the steering column, often secured with a few clips or small bolts.
- Swap the Connectors: Carefully unplug the electrical connectors from the old BCM. They are color-coded and uniquely shaped, so you can’t mix them up. Plug them securely into your new module.
- Secure and Reconnect: Mount the new BCM in place and reconnect your battery terminal.
- Post-Install Check: Start the vehicle and test all functions—lights, wipers, windows, locks, and HVAC. Note that some procedures, like an airbag system sync, may be required. See our FAQ for details.
Verified Vehicle Compatibility List
This module is a direct replacement for a wide range of General Motors trucks and SUVs. It is interchangeable with part numbers 15263363, 15263497, 15878753, 15284816, 15943678, 25835966, and more. Please verify your model and year below:
- Cadillac Escalade, ESV, EXT: 2007, 2008, 2009, 2010, 2011
- Chevrolet Avalanche 1500: 2007, 2008, 2009, 2010, 2011
- Chevrolet Silverado 1500/2500/3500: 2007-2011 (and some 2013 models)
- Chevrolet Suburban 1500/2500: 2007-2011
- Chevrolet Tahoe: 2007-2011
- GMC Sierra 1500/2500/3500 & Denali: 2007-2011 (and some 2013 models)
- GMC Yukon & Yukon XL: 2007-2011
Frequently Asked Questions
Does this Body Control Module need to be programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for a true plug-and-play installation, saving you time and money.
What if my airbag light is on after installing the new BCM?
This is a common security feature. If the airbag light persists (often with code B1001), you will need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function. This syncs the new BCM with the airbag system and is a quick procedure for any qualified technician.
Where is the BCM located on my 2008 Escalade?
The BCM is located on the driver’s side, under the dashboard near the steering column. It’s typically held in place by plastic clips for easy access.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without needing to send it back, making the process hassle-free.
Will this fix my intermittent stalling issue?
In many cases, yes. The BCM communicates with the vehicle’s security and powertrain systems. A faulty BCM can disrupt these signals, leading to stalling or no-start conditions. This is a common fix for those symptoms.