Are you battling frustrating electrical gremlins in your GM truck or SUV? A faulty Body Control Module (BCM) is often the culprit behind a host of perplexing issues, from malfunctioning lights and power accessories to security system alerts. This replacement BCM, part number 15063578, is the definitive solution to restore full functionality and peace of mind to your vehicle. It serves as the central command for your vehicle’s body electronics, and when it fails, it can make driving a daily challenge.
We take the guesswork and high dealership costs out of the equation. Unlike a generic module from a parts store, this BCM is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures that the module communicates correctly with your truck’s other systems right out of the box, saving you from needing an expensive programming session at a repair shop. Simply provide your VIN during checkout, and we’ll handle the rest, loading the latest GM software for optimal performance.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functioning power windows, door locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lights (e.g., headlights, dome lights, or turn signals).
- ✔ The security or anti-theft system light stays on or prevents the vehicle from starting.
- ✔ The radio or climate control system works sporadically or not at all.
- ✔ False warning messages on the instrument cluster, such as ‘Service Vehicle Soon’.
- ✔ Problems with the keyless entry remote.
Direct-Fit Solution for Your 2002 Sierra 3500 BCM
This module is a direct replacement for a wide range of early 2000s GM vehicles, ensuring a perfect fit and proper function. It is compatible with original part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. While this unit is designed for a straightforward installation, please be aware of potential post-installation requirements. In some cases, specific relearn procedures may be necessary to sync the new BCM with other vehicle systems.
For example, if your airbag warning light illuminates after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be needed to ensure proper brake light and traction control operation. These procedures are vehicle-specific and are a normal part of replacing a modern electronic module.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, we will contact you for your VIN. You can also add your VIN to the ‘order notes’ section during checkout to speed up the process.
Is this part truly plug-and-play?
Because we program it to your VIN, it is plug-and-play for most of the vehicle’s core functions. However, as with any BCM replacement, certain subsystems like the airbag (SRS) or brake pedal position sensor may require a ‘relearn’ procedure with a compatible scan tool to fully sync with the new module.
Do I need to send my old BCM back?
No. This purchase does not require a core return. You can keep your original module.
My original part number is 15081796. Will this one work?
Yes, this BCM is a direct replacement for several part numbers, including 15081796, 15095334, and 19208537. As long as your vehicle is on the compatibility list, this module will function correctly.
What tools are needed for installation?
Installation typically requires basic hand tools like a socket set and screwdrivers to access the BCM (usually located under the steering column or in the center dash). While the physical swap is simple, a professional-grade diagnostic scan tool may be necessary for any required post-installation relearn procedures.