Restore Full Functionality to Your Cadillac
If you’re dealing with baffling electrical issues in your 2007-2011 Cadillac Escalade EXT—like power windows that won’t budge, a temperamental climate control system, or dashboard warning lights that have a mind of their own—you’re not alone. These are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can turn your luxury truck into a source of daily frustration. This replacement Escalade EXT Body Control Module, part number 25823558, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
A Technician’s Notebook
I recently had a 2010 Sierra in the shop with a laundry list of complaints: the radio would cut out, the driver’s side power lock was dead, and the airbag light was on intermittently. The owner had already replaced the battery and checked fuses. After connecting my scanner, I saw a dozen communication codes pointing to the BCM. These modules often fail internally from heat cycles and vibrations, causing poor connections on the circuit board. Swapping in a VIN-programmed BCM like this one cleared every code and restored all functions in under 10 minutes. It’s a common failure point on these GM platforms, but thankfully, it’s a straightforward fix.
Is Your Escalade EXT Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely this module is the culprit:
- ✔ Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- ✔ HVAC blower motor not working or climate controls failing to respond.
- ✔ An active airbag warning light, often with Diagnostic Trouble Code (DTC) B1001.
- ✔ Vehicle security system malfunctions, causing no-start or stalling conditions.
- ✔ Communication errors with other modules, leading to a variety of seemingly unrelated warning lights.
- ✔ Problems with windshield wipers or other accessory circuits.
Your Step-by-Step Installation Guide
Replacing your Escalade EXT Body Control Module is a simple task that most DIYers can complete in their driveway. No complex tools are required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On your Escalade EXT, the BCM is located under the driver’s side dashboard, typically to the left of the steering column.
- Remove the Old Module: The BCM is held in place by retaining clips. Carefully disconnect the electrical connectors (they have locking tabs, so be gentle) and unclip the module from its bracket.
- Install the New Module: Connect the wiring harnesses to your new, pre-programmed BCM. The plugs are color-coded and keyed to only fit one way. Snap the new module securely into the mounting bracket.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and test all functions—windows, locks, lights, wipers, and HVAC—to confirm the repair was successful.
- Post-Install Checks: In some cases, an airbag light may persist. This requires an ‘SDM Key Update’ using a professional scan tool. A ‘Brake Pedal Position Relearn’ may also be needed for certain models to ensure proper brake light function.
Key Features of This Direct-Fit BCM
- ✔ VIN Programmed for You: We program the module to your vehicle’s specific VIN before shipping. This eliminates the need for expensive dealership programming, making installation a simple swap.
- ✔ No Core Charge: Keep your old part. There are no core fees or hassles with returning the original module.
- ✔ OEM-Level Reliability: Built to meet or exceed original equipment specifications for a dependable, long-lasting repair that restores your vehicle’s electronics to factory performance.
- ✔ Broad Compatibility: This module is a direct replacement for a wide range of part numbers, including 25835966, 15943678, 20939137, 22860591, and your specific part 25823558.
Will This Fit My Vehicle?
This Body Control Module is guaranteed to fit the following vehicles, among others. Please verify your part number for a perfect match.
CADILLAC ESCALADE 07-11 Body Control (BCM); (under steering column)
CADILLAC ESCALADE ESV 07-11 Body Control (BCM); (under steering column)
CHEVROLET AVALANCHE 1500 07-11 Body Control (BCM); (under steering column)
CHEVROLET SILVERADO 1500 PICKUP 07-11 Body Control (BCM); (under steering column)
CHEVROLET SILVERADO 2500 PICKUP 07-11 Body Control (BCM); (under steering column)
CHEVROLET SILVERADO 3500 PICKUP 07-11 Body Control (BCM); (under steering column)
CHEVROLET SUBURBAN 1500 07-11 Body Control (BCM); (under steering column)
CHEVROLET SUBURBAN 2500 07-11 Body Control (BCM); (under steering column)
CHEVROLET TAHOE 07-11 Body Control (BCM); (under steering column)
GMC SIERRA 1500 PICKUP 07-11 Body Control (BCM); (under steering column)
GMC SIERRA 2500 PICKUP 07-11 Body Control (BCM); (under steering column)
GMC SIERRA 3500 PICKUP 07-11 Body Control (BCM); (under steering column)
GMC YUKON 07-11 Body Control (BCM); (under steering column)
GMC YUKON XL 1500 07-11 Body Control (BCM); (under steering column)
GMC YUKON XL 2500 07-11 Body Control (BCM); (under steering column)
Frequently Asked Questions
Frequently Asked Questions
Do I need to take my truck to the dealer after installing this BCM?
No. We pre-program this module with the latest GM software using your vehicle’s VIN. It is ready for installation right out of the box, saving you time and money.
Is this a difficult part to replace myself?
Not at all. The BCM is easily accessible under the driver’s side dash and is held in by clips. Most customers complete the replacement in under 15 minutes with basic hand tools.
What happens if my airbag light is still on after installation?
If the airbag light remains on, it’s because the new BCM needs to be electronically ‘introduced’ to the airbag system’s SDM. This is done with a professional scan tool using the ‘Setup SDM Primary Key in BCM’ function. A local repair shop can perform this procedure.
What does ‘No Core Charge’ mean?
It means you don’t have to send your old, faulty BCM back to us. You can keep it or dispose of it yourself, simplifying the repair process for you.
Will this fix a ‘Service 4WD’ or ‘Service Stabilitrak’ message?
While a failing BCM can cause a wide range of issues, these specific messages are more often related to the Transfer Case Control Module (TCCM) or wheel speed sensors. It’s important to diagnose the specific DTCs to confirm the faulty component.