Fix Your Escalade’s Electrical Problems for Good
If your 2007-2011 Cadillac Escalade EXT is plagued by bizarre electrical issues, you’re not alone. As a technician with over 20 years of experience, I’ve seen how a failing Body Control Module (BCM) can turn a luxury vehicle into a source of daily frustration. This isn’t just a minor inconvenience; it’s the central command center for your truck’s comfort and security features. This replacement BCM, corresponding to part number 25790509, is the definitive solution to restore the seamless operation you expect from your Cadillac.
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming trip to the dealership for programming. We eliminate that step entirely. We flash this module with your vehicle’s specific VIN and the latest GM software before it ships. This means it arrives at your door ready for a true plug-and-play installation, getting you back on the road faster and saving you money.
A Technician’s Notebook: The Case of the Haunted Escalade
A customer brought in an ’08 Escalade EXT with a list of complaints that sounded like the truck was haunted. The dome lights would flicker, the radio would randomly shut off, and the security light stayed on, sometimes preventing it from starting. He’d already replaced the battery and checked fuses with no luck. Instead of chasing these electrical gremlins for hours, my experience pointed straight to the BCM. A faulty BCM can send corrupt signals across the vehicle’s network, causing these exact kinds of unrelated symptoms. We installed one of our pre-programmed modules, and in less than 10 minutes, every single issue was resolved. The customer was thrilled to have his truck back to normal without a massive diagnostic bill.
Is Your Escalade Showing These Electrical Gremlins?
A failing BCM is the root cause of many frustrating electrical problems. If you’re experiencing any of the following, this module is the likely solution for your 2007-2011 Escalade EXT BCM.
- ✔ Power windows or door locks working intermittently or not at all.
- ✔ HVAC and climate control functions are unresponsive or behave erratically.
- ✔ The anti-theft system malfunctions, causing no-start or stalling conditions.
- ✔ An airbag warning light is illuminated on the dash, often with DTC B1001.
- ✔ Exterior or interior lights fail to work correctly.
- ✔ Wipers operate randomly or won’t turn on/off.
- ✔ Poor grounding symptoms or a host of communication-related trouble codes.
A Straightforward Guide to Installation
One of the best parts of our VIN-programmed modules is the simple installation. You don’t need to be a master mechanic to get this job done right in your own driveway. The entire process typically takes less than 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On your Escalade EXT, the BCM is located under the driver’s side of the dashboard, near the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be pressed to release. Once disconnected, remove the old BCM.
- Install the New Module: Seat the new BCM in the mounting location and firmly reconnect all electrical connectors until they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions—lights, locks, windows, HVAC, etc.—to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light on, a simple “Setup SDM Primary Key in BCM” procedure may be needed with a high-end scan tool to sync the new BCM with the airbag system. This is a quick procedure for any professional shop. Also, a Brake Pedal Position Relearn might be required for certain models.
Verified Vehicle Compatibility
While this listing is for the 2007-2011 Escalade EXT BCM, this module is a direct replacement for a wide range of GM trucks and SUVs. It is interchangeable with part numbers 25844480, 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591. Please check the list below to confirm your vehicle’s fitment.
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 3500 13 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 2500 10 Body Control (BCM), (under steering column)
YUKON XL 2500 09-11 Body Control (BCM); (under steering column)
ESCALADE EXT 07-09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 07 Body Control (BCM); (under steering column)
YUKON 07 Body Control (BCM); (under steering column)
ESCALADE EXT 11 Body Control (BCM); (under steering column)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25835966
AVALANCHE 1500 08-09 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 10-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 2500 PICKUP 09-11 Body Control (BCM); (under steering column)
SUBURBAN 2500 07-09 Body Control (BCM); (under steering column)
YUKON 11 Body Control (BCM), (under steering column)
ESCALADE 11 Body Control (BCM); (under steering column)
ESCALADE ESV 11 Body Control (BCM); (under steering column)
SUBURBAN 1500 07-09 Body Control (BCM); (under steering column)
AVALANCHE 1500 07 Body Control (BCM), (under steering column)
SIERRA 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 08 Body Control (BCM), (under steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25835966
YUKON 08 Body Control (BCM), (under steering column)
YUKON 09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 2500 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
TAHOE 08 Body Control (BCM)
YUKON XL 2500 07-08 Body Control (BCM), (under steering column)
SIERRA DENALI 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA DENALI 1500 11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
YUKON 10 Body Control (BCM); (under steering column), ID 25835966
YUKON XL 1500 07-09 Body Control (BCM), (under steering column)
YUKON XL 1500 11 Body Control (BCM); (under steering column)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
ESCALADE 07-09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 1500 PICKUP 09 Body Control (BCM), (under steering column)
SIERRA DENALI 3500 11 Body Control (BCM); (under steering column)
SUBURBAN 2500 11 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 1500 PICKUP 08 Body Control (BCM); (under steering column)
SIERRA DENALI 08-10 Body Control (BCM); (under steering column)
SUBURBAN 1500 11 Body Control (BCM); (under steering column)
ESCALADE 10 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), under steering column)
SILVERADO 2500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
AVALANCHE 1500 11 Body Control (BCM)
TAHOE 11 Body Control (BCM); (under steering column)
Frequently Asked Questions
Frequently Asked Questions
Is this BCM really plug-and-play?
Yes. We program the module to your vehicle’s VIN before shipping, so it’s ready to install right out of the box without any need for a dealership visit for programming.
What tools do I need for installation?
Basic hand tools are all that’s required. Typically, a socket or wrench to disconnect the battery and possibly a small trim removal tool to access the module are all you’ll need.
My airbag light is on after installing. What do I do?
This can happen. It means the new BCM needs to be synced with the airbag system (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional diagnostic tool to clear the light.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module without any hassle.
What if my original part number is different from 25790509?
Our BCM is a direct replacement for many part numbers. Please check the detailed interchange list in the description above to confirm that your part number is included.
Will this fix my specific problem?
This module is the solution for a wide range of body electronic failures. Please review the list of common symptoms on this page. If the issues your vehicle is experiencing match the list, this part is very likely the correct fix.