Restore Full Electrical Control to Your GM Truck or SUV
Are you battling frustrating electrical problems in your Cadillac Escalade, Chevy Silverado, or GMC Sierra? A faulty Body Control Module (BCM) is often the culprit behind issues like malfunctioning lights, unresponsive power windows, erratic HVAC behavior, and persistent warning lights. This genuine OEM-quality GM Body Control Module, corresponding to part numbers 15284816 and 25844480, is the definitive solution. It arrives expertly programmed to your vehicle’s specific VIN, ensuring a seamless, plug-and-play installation without requiring a trip to the dealership for expensive programming.
Common Symptoms of a Failing BCM
If your vehicle is experiencing any of the following, a failing BCM is the likely cause:
- ✔ Intermittent or non-working interior and exterior lights.
- ✔ Power windows, door locks, or mirrors that operate erratically or not at all.
- ✔ HVAC and climate control systems that won’t turn on or respond to commands.
- ✔ An active airbag warning light, often accompanied by DTC B1001.
- ✔ Security system malfunctions, causing no-start conditions or random alarm activation.
- ✔ A variety of seemingly unrelated diagnostic trouble codes stored in the system.
Why Choose Our Pre-Programmed Escalade EXT Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a new OEM-quality module and flash it with the latest GM software updates tailored specifically to your vehicle’s VIN. This critical step ensures all onboard systems communicate correctly from the moment you plug it in, restoring factory performance and reliability. This module is a direct replacement for a wide range of part numbers, including 25835966, 15263363, 15943678, 20939137, 22860591, and more.
Installation and Post-Install Notes
Installation is straightforward for the average DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. The physical swap takes only a few minutes. However, please be aware of potential post-installation procedures:
- Airbag System Sync: If the airbag light remains on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed using a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Frequently Asked Questions
Do I need to have the dealership program this module?
No. We pre-program the module to your vehicle’s VIN before shipping. It is ready for installation right out of the box, saving you time and money.
What does the Body Control Module do on my Escalade?
The BCM acts as the central computer for your vehicle’s body electronics. It controls functions like power windows, locks, interior/exterior lighting, wipers, the security system, and HVAC blower functions.
Is this part difficult to install?
The physical replacement is simple. It is located under the steering column and involves unplugging the old module and plugging in the new one. The entire process typically takes less than 15 minutes.
What if my airbag light stays on after I install it?
This is a known possibility. You will need a scan tool with special functions to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM to the existing airbag module and is not a sign of a defective part.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without needing to send it back.