Are you tired of chasing electrical gremlins in your Cadillac Escalade or another GM vehicle? One day the power windows work, the next they don’t. The security light flashes randomly, or worse, the vehicle refuses to start. These frustrating, intermittent issues often point to one central culprit: a failing Body Control Module (BCM). As the electronic nerve center of your vehicle, the BCM manages everything from interior lighting and power locks to the anti-theft system and communication between other critical modules. When it fails, it can create a cascade of baffling problems.
This isn’t just another replacement part. This is a complete solution. We are offering a genuine GM Body Control Module, part number 25847588, that comes professionally programmed to your vehicle’s specific VIN before it ships. This crucial step ensures seamless integration with your vehicle’s existing systems, loading the latest factory software updates from GM. By handling the programming for you, we eliminate the need for an expensive trip to the dealership, saving you time, money, and the headache of scheduling appointments and paying for programming services.
Case Study: A Tricky Diagnosis
I remember a 2010 Escalade ESV that came into my shop with a laundry list of complaints from the owner. The radio would turn off, the driver’s side door lock was unresponsive, and the remote start worked only half the time. The owner had already replaced the battery and checked all the fuses. A quick scan showed a flurry of U-codes, specifically U0140 (Lost Communication With Body Control Module). Instead of shotgunning parts, we honed in on the BCM. After installing a VIN-programmed module like this one, every single one of the phantom electrical issues vanished. It’s a perfect example of how a single component can restore a vehicle’s functionality and an owner’s peace of mind.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Flickering interior or exterior lights that aren’t caused by bad bulbs or wiring.
- ✔ The security or anti-theft light staying on, preventing the engine from starting.
- ✔ Inaccurate or erratic gauge readings on the instrument cluster.
- ✔ Remote keyless entry (RKE) system working sporadically or not at all.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication, such as U0140, U0155, or other U-codes.
- ✔ A/C and climate control functions behaving unpredictably.
The Dealer-Free Solution
Replacing a BCM used to be a job exclusive to dealerships due to the complex programming required. Our service changes that. By providing us with your VIN during checkout, you receive a module that’s ready for installation right out of the box. This makes the repair accessible for skilled DIYers and independent repair shops alike. This is the most direct and reliable way to fix the root cause of your vehicle’s electrical issues and restore all functions as intended by the manufacturer.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- ✔ Locate the BCM: On the 2010 Escalade ESV and similar GM SUVs/trucks, the BCM is typically located under the driver’s side of the dashboard, near the steering column. On vans and some cars, it may be in the center dash area. A quick check of your service manual will confirm the exact location.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. Most have a locking tab that needs to be depressed or lifted. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in place of the old one. Securely reconnect all electrical connectors, ensuring they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test functions like power locks, windows, and lights.
- ✔ Perform Relearn Procedures: Start the vehicle. As noted below, some vehicles may require additional relearn procedures for systems like the airbags or brake pedal position sensor. This is normal and ensures all related systems are properly calibrated to the new BCM.
Important Post-Installation Information
While this BCM is programmed for your VIN, certain vehicle systems may require a recalibration or sync procedure after installation to ensure full functionality and safety. This often requires a bi-directional scan tool.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is necessary to sync the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be required to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: We strongly recommend consulting a factory service manual or a qualified technician for vehicle-specific procedures.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles and interchanges with multiple part numbers. Please verify your vehicle is on the list below and that your original part number matches one of the numbers provided.
Replaces Part Numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN (Vehicle Identification Number)?
Your VIN is essential for us to program the Body Control Module with the correct software and vehicle-specific options from GM. This ensures the module communicates properly with your car’s other systems, just like one from the factory.
Is this part difficult to install?
The physical replacement is straightforward for someone with basic mechanical skills. It involves unplugging the old module and plugging in the new one. However, some vehicles may require post-installation relearn procedures with a professional scan tool, as mentioned in our description.
Will this fix my car’s specific electrical problem?
If your vehicle’s symptoms match the common signs of BCM failure and a proper diagnosis has been performed, this module is the correct solution. It resolves issues caused by an internally failing BCM, but it will not fix problems related to wiring, sensors, or other modules.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original module without needing to send it back to us.
What happens if the airbag light comes on after I install it?
This is a known possibility on some GM models. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function to sync the systems and turn off the light.